2021 Office Sector Giants: Top architecture, engineering, and construction firms in the U.S. office building sector

Gensler, Jacobs, Turner Construction, and STO Building Group head BD+C's rankings of the nation's largest office building sector architecture, engineering, and construction firms, as reported in the 2021 Giants 400 Report.

• Top 200 Office Sector Architecture and AE Firms for 2021
• Top 95 Office Sector Engineering and EA Firms for 2021
• Top 120 Office Sector Contractors and CM Firms for 2021
• Top 150 Office Building/Core+Shell Architecture and AE
• Top 85 Office Building/Core+Shell Engineering and EA
• Top 95 Office Building/Core+Shell Contractors and CM
• Top 145 Workplace/Interior Fitout Architecture and AE
• Top 60 Workplace/Interior Fitout Engineering and EA
• Top 80 Workplace/Interior Fitout Contractors and CM

Top 200 Office Sector Architecture and AE Firms for 2021
	FIRM	2020 REVENUE
1	Gensler	$729,186,991
2	Perkins and Will	$170,750,000
3	Stantec	$147,209,804
4	HOK	$147,150,000
5	Interior Architects	$128,214,313
6	ZGF Architects	$81,694,781
7	NBBJ	$81,300,000
8	Skidmore, Owings & Merrill	$66,367,184
9	Nelson Worldwide	$62,560,857
10	Smithgroup	$61,918,521
11	HKS	$50,002,650
12	Ware Malcomb	$45,339,821
13	DLR Group	$44,600,000
14	Page	$42,987,226
15	Kohn Pedersen Fox	$41,290,455
16	HGA	$37,646,706
17	Corgan	$35,117,908
18	Ted Moudis Associates	$32,500,000
19	TPG Architecture	$31,993,000
20	LPA	$31,012,590
21	Perkins Eastman	$31,011,905
22	NORR	$31,005,463
23	CallisonRTKL	$30,988,216
24	RSP Architects	$29,968,000
25	EYP	$25,266,180
26	CannonDesign	$25,000,000
27	Leo A Daly	$22,360,000
28	BHDP Architecture	$21,864,952
29	HDR	$21,000,000
30	LMN Architects	$20,601,480
31	Elkus Manfredi Architects	$20,347,000
32	Quinn Evans	$19,364,803
33	Little Diversified Architectural Consulting	$19,139,138
34	Vocon	$16,536,800
35	Clark Nexsen	$16,264,900
36	LS3P Associates	$15,021,967
37	Eppstein Uhen Architects	$14,888,000
38	Goettsch Partners	$14,564,000
39	Huntsman Architectural Group	$13,535,346
40	Kirksey Architecture	$11,998,103
41	Flad Architects	$10,760,000
42	Solomon Cordwell Buenz	$10,462,404
43	Ennead Architects	$10,084,335
44	Cooper Carry	$9,672,443
45	Sasaki	$9,500,399
46	Gresham Smith	$9,291,340
47	RS&H	$9,100,000
48	FXCollaborative	$8,864,204
49	Fogarty Finger	$8,246,700
50	HED	$7,962,000
51	KZF Design	$7,949,682
52	Cuningham	$7,518,743
53	Ratio Design	$7,510,078
54	Bergmann	$7,490,000
55	JLL	$6,606,173
56	Smallwood	$6,545,390
57	GFF	$6,517,530
58	Goodwyn Mills Cawood	$6,464,520
59	Montroy DeMarco Architecture	$6,400,000
60	H2M Architects + Engineers	$6,345,263
61	AHL	$6,304,688
62	EwingCole	$6,000,000
63	Rule Joy Trammell + Rubio	$5,519,308
64	Dyer Brown & Associates	$5,402,320
65	FCA	$5,402,074
66	PGAL	$5,278,000
67	Marmon Mok Architecture	$5,276,890
68	REES	$5,213,587
69	Clark & Enersen	$5,122,331
70	Handel Architects	$4,777,710
71	HuntonBrady Architects	$4,667,374
72	CBRE	$4,549,061
73	Champlin Architecture	$4,511,863
74	Mithun	$4,454,514
75	Ryan Companies US / Ryan A+E	$4,360,000
76	Barge Design Solutions	$3,993,154
77	Progressive AE	$3,763,722
78	Baskervill	$3,556,155
79	Carrier Johnson + Culture	$3,544,275
80	KGD Architecture	$3,360,718
81	DLZ Corp.	$3,330,611
82	McMillan Pazdan Smith	$3,300,085
83	Kahler Slater	$3,250,000
84	Zyscovich	$3,225,456
85	H. Hendy Associates	$3,069,462
86	DGA Planning \| Architecture \| Interiors	$2,991,750
87	Performa	$2,980,000
88	GBBN	$2,925,000
89	BWBR	$2,874,956
90	Weber Thompson	$2,681,014
91	Architecture, Incorporated	$2,624,000
92	Davis Brody Bond	$2,612,102
93	LaBella Associates	$2,570,000
94	WDG Architecture	$2,500,000
95	Cromwell Architects Engineers	$2,493,987
96	G70	$2,426,375
97	Design Collaborative	$2,301,009
98	RDG Planning & Design	$2,255,964
99	AE Works Ltd.	$2,213,053
100	Hoefer Welker	$2,194,000
101	MBH Architects	$2,182,500
102	Moody Nolan	$2,163,014
103	Steinberg Hart	$2,159,643
104	Macgregor Associates Architects	$2,047,344
105	JRS Architect	$2,000,000
106	Wendel	$1,995,914
107	VLK Architects	$1,950,000
108	Hart Howerton	$1,913,004
109	Emersion Design	$1,785,893
110	TreanorHL	$1,784,417
111	KCCT	$1,776,656
112	Dattner Architects	$1,766,817
113	Spiezle Architectural Group	$1,710,000
114	Hafer	$1,685,930
115	RDC-S111	$1,637,179
116	DLA+ Architecture & Interior Design	$1,600,000
117	Plunkett Raysich Architects	$1,595,123
118	Lunz Group, The	$1,568,335
119	JLG Architects	$1,544,251
120	SLAM	$1,441,606
121	Lawrence Group	$1,334,092
122	Method Architecture	$1,332,008
123	HMC Architects	$1,303,771
124	Eckenhoff Saunders Architects	$1,300,000
125	Diamond Schmitt Architects	$1,253,585
126	Think Architecture	$1,247,200
127	Álvarez-Díaz & Villalón \| Architecture & Interior Design	$1,234,772
128	Hanbury	$1,223,843
129	WATG	$1,216,217
130	AO	$1,200,000
131	Garmann Miller & Associates	$1,193,400
132	Larson Design Group	$1,143,281
133	Legat Architects	$1,092,900
134	TETER	$1,061,000
135	Kitchen & Associates	$1,026,417
136	Humphreys and Partners	$1,000,000
137	Jackson \| Main Architecture	$954,937
138	CO Architects	$939,560
139	FitzGerald	$818,000
140	SLCE Architects, LLP	$816,000
141	CPL	$774,674
142	KG+D Architects	$749,425
143	Studio+	$709,099
144	Niles Bolton Associates	$685,831
145	GRW	$640,027
146	SGA \| NarmourWright Design	$636,827
147	BSA LifeStructures	$599,967
148	TRIA	$578,200
149	SHP	$540,000
150	SchenkelShultz Architecture	$538,716
151	FGM Architects	$521,461
152	Fentress Architects	$500,000
153	RRMM Architects	$476,978
154	HNTB	$443,562
155	Ayers Saint Gross	$433,670
156	GSB	$387,500
157	Urbahn Architects	$331,241
158	HBG Design	$327,000
159	Woolpert	$320,654
160	GGLO	$312,000
161	Bermello Ajamil & Partners	$306,789
162	ATA Beilharz Architects	$288,000
163	Huitt-Zollars	$286,304
164	Becker Morgan Group	$277,178
165	Populous	$263,152
166	Crawford Architects	$238,000
167	Dahlin Group Architecture Planning	$230,000
168	Architectural Design Consultants	$227,800
169	JCJ Architecture	$215,794
170	MKM Architecture + Design	$214,490
171	NAC Architecture	$213,668
172	Shepley Bulfinch	$201,493
173	NSPJ Architects	$195,425
174	Walbridge	$192,466
175	PCA	$181,710
176	BKV Group	$163,128
177	Finegold Alexander Architects	$159,774
178	BSB Design	$140,040
179	CetraRuddy Architecture	$127,392
180	CSArch	$125,357
181	Architecture Design Collaborative	$125,000
182	//3877	$120,000
183	Line Scale Form	$106,030
184	Massa Multimedia Architecture	$103,021
185	Curtis + Ginsberg Architects	$100,000
—	WD Partners	$100,000
—	Sheehan Nagle Hartray Architects	$100,000
188	DLA Architects	$97,029
189	RGA Architects	$95,000
190	Randall-Paulson Architects	$68,132
191	CESO	$66,793
192	KTGY	$60,304
193	AE Design Group	$57,500
194	Taylor Design	$57,000
195	Nehmer	$50,000
196	Sebree Architects	$45,000
197	RKTB Architects	$39,500
198	Miller Dunwiddie	$26,941
199	Warner Nease Bost Architects	$18,000
200	GreenbergFarrow	$8,700
201	45 Architecture	$1,357

SOURCE: 2021 Giants 400 Report

Top 95 Office Sector Engineering and EA Firms for 2021
	FIRM	2020 REVENUE
1	Jacobs	$476,700,000
2	AECOM	$143,500,000
3	Thornton Tomasetti	$135,034,769
4	Arup	$87,934,245
5	Burns & McDonnell	$86,756,577
6	Alfa Tech Consulting Engineers	$80,000,000
7	WSP USA	$65,779,689
8	EXP	$49,621,119
9	Langan	$49,500,000
10	NV5 Global	$45,461,000
11	Dewberry	$41,042,313
12	Buro Happold	$35,713,000
13	Syska Hennessy Group	$33,610,239
14	Jaros, Baum & Bolles	$32,866,933
15	Kimley-Horn	$27,149,461
16	IMEG Corp.	$24,640,420
17	Magnusson Klemencic Associates	$22,289,569
18	AKF Group	$21,350,000
19	ESD	$18,889,879
20	Wiss, Janney, Elstner Associates	$15,360,000
21	Ghafari Associates	$15,000,000
22	Salas O'Brien	$13,760,614
23	Vanderweil Engineers	$13,355,600
24	Cushing Terrell	$12,993,025
25	Morrison Hershfield	$11,617,374
26	Affiliated Engineers Inc.	$11,349,617
27	Bala Consulting Engineers	$10,889,000
28	KPFF Consulting Engineers	$10,822,000
29	Walter P Moore	$10,566,055
30	CMTA	$10,030,959
31	TEECOM	$9,919,538
32	ME Engineers	$9,148,000
33	Haskell	$8,273,590
34	Newcomb & Boyd	$7,392,381
35	Farnsworth Group	$7,308,111
36	CDM Smith	$6,815,303
37	Shive-Hattery	$6,603,804
38	Martin/Martin Consulting Engineers	$6,345,960
39	BRPH	$6,313,166
40	Henderson Engineers	$6,078,145
41	TLC Engineering Solutions	$5,600,000
42	Olsson	$4,955,267
43	SSOE Group	$4,107,457
44	Highland Associates	$4,100,000
45	Ross & Baruzzini	$4,000,000
46	Stanley Consultants	$3,895,455
47	Dunham Associates	$3,800,000
48	Bridgers & Paxton Consulting Engineers	$3,788,023
49	HEAPY	$3,602,972
50	Halff Associates	$3,540,000
51	KCI Technologies	$3,518,500
52	DeSimone Consulting Engineers	$3,312,577
53	McKinstry	$3,000,000
54	H.F. Lenz	$2,971,541
55	Epstein	$2,594,800
56	I.C. Thomasson Associates	$2,527,935
57	Hixson Architecture, Engineering, Interiors	$2,500,000
—	Peter Basso Associates	$2,500,000
59	French & Parrello Associates	$1,910,400
60	Karpinski Engineering	$1,910,000
61	Osborn Engineering	$1,750,000
62	Galloway & Company	$1,583,932
63	GRAEF	$1,512,494
64	Kohrs Lonnemann Heil Engineers	$1,503,122
65	M/E Engineering	$1,423,250
66	PS&S	$1,363,000
67	ThermalTech Engineering	$1,300,000
68	Davis, Bowen & Friedel	$1,205,317
69	CHA Consulting	$1,200,000
70	Apogee Consulting Group	$1,192,311
71	Wick Fisher White	$1,188,000
72	Smith Seckman Reid	$1,169,540
73	Arora Engineers	$1,158,998
74	Paradigm Structural Engineers	$1,052,030
75	Allen + Shariff	$1,026,980
76	Wallace Design Collective	$1,000,000
77	EAPC Architects Engineers	$980,608
78	Schaefer	$960,654
79	MHP Structural Engineers	$944,873
80	Swanson Rink	$909,428
81	JQ Engineering	$786,360
82	Spectrum Engineers	$762,318
83	SSC Engineering	$723,586
84	Primera Engineers	$634,713
85	DHE Engineering	$589,477
86	Kohler Ronan	$578,553
87	KCL Engineering	$562,577
88	New York Engineers	$556,680
89	PBS Engineers	$500,000
90	G2 Consulting Group	$500,000
91	raSmith	$423,649
92	LBYD	$377,092
93	Architectural Engineers	$258,066
94	Black & Veatch Corp.	$210,000
95	VJS Construction Services	$197,000
96	P2S	$164,213
97	Marque Engineering	$141,680
98	SchraderGroup	$13,953

SOURCE: 2021 Giants 400 Report

Top 120 Office Sector Contractors and CM Firms for 2021
	FIRM	2020 REVENUE
1	Turner Construction	$3,914,275,103
2	STO Building Group	$2,852,000,000
3	Gilbane Building Company	$1,697,187,000
4	Hensel Phelps	$1,656,402,566
5	Swinerton	$1,541,425,542
6	Balfour Beatty US	$1,504,675,068
7	AECOM	$1,393,400,000
8	Clark Group	$1,268,112,086
9	DPR Construction	$1,122,363,000
10	HITT Contracting	$1,076,858,092
11	Whiting-Turner Contracting Co., The	$1,068,044,953
12	CBRE	$1,060,257,563
13	Clayco	$1,020,000,000
14	J.T. Magen	$943,431,257
15	Brasfield & Gorrie	$818,662,063
16	Clune Construction	$802,281,446
17	James G. Davis Construction	$639,674,281
18	JE Dunn	$638,788,867
19	JRM Construction Management	$593,000,000
20	PCL Construction	$548,331,377
21	Choate Construction	$472,821,171
22	Holder Construction	$465,000,000
23	Webcor	$391,812,433
24	Lease Crutcher Lewis	$378,021,898
25	Skanska USA	$342,934,628
26	Ryan Companies US / Ryan A+E	$321,775,998
27	Lendlease	$300,975,354
28	Mortenson	$287,254,000
29	Skender	$280,883,688
30	McCarthy Holdings	$264,019,001
31	Adolfson & Peterson Construction	$253,957,848
32	Pepper Construction	$253,034,347
33	Weitz Company, The	$218,263,600
34	Archstone Builders	$216,378,681
35	Manhattan Construction Group	$212,549,750
36	Rodgers Builders	$208,017,534
37	Executive Construction	$205,500,000
38	Walsh Group, The	$203,946,091
39	Sundt Construction	$181,534,081
40	Suffolk Construction	$177,997,792
41	Batson-Cook	$175,648,114
42	C.W. Driver Companies	$170,827,526
43	JLL	$169,019,868
44	BartonMalow	$153,389,922
45	Crossland Construction	$149,391,407
46	Walbridge	$147,466,392
47	ARCO Construction Companies	$143,947,798
48	Hill & Wilkinson General Contractors	$139,163,676
49	Shawmut Design and Construction	$133,543,936
50	Nabholz	$124,113,591
51	Power Construction	$124,000,000
52	Columbia	$122,900,000
53	Austin Industries	$118,175,586
54	Clancy & Theys Construction	$108,330,175
55	Rogers-O'Brien Construction	$105,512,007
56	New South Construction	$101,905,000
57	Joeris General Contractors	$94,903,799
58	McKinstry	$94,000,000
59	BL Harbert International	$92,559,074
60	Hunter Roberts Construction	$91,087,000
61	McShane Companies, The	$79,533,547
62	Burns & McDonnell	$76,669,008
63	Yates Companies, The	$74,740,000
64	Andersen Construction	$67,000,000
65	Messer Construction	$65,331,912
66	McCownGordon Construction	$64,340,979
67	Miron Construction	$63,644,445
68	Saunders Construction	$61,146,792
69	Paric Holdings	$59,881,824
70	Jacobs	$57,234,000
71	W.E. O'Neil Construction	$49,847,040
72	LeChase Construction Services	$49,640,306
73	Hill International	$49,389,647
74	Schimenti Construction	$47,000,000
75	Granger Construction	$43,818,036
76	W. M. Jordan Company	$42,844,948
77	Fortis Construction	$41,985,119
78	Robins & Morton	$40,868,624
79	Hoffman Construction	$39,057,025
80	Kaufman Lynn Construction	$36,877,789
81	Haselden Construction	$32,327,152
82	CORE Construction Group	$32,205,448
83	Hoar Construction	$27,460,000
84	Blach Construction	$26,100,000
85	S. M. Wilson & Co.	$22,905,759
86	Millie and Severson General Contractors	$19,345,235
87	DeAngelis Diamond	$18,061,000
88	Donohoe Construction	$18,042,552
89	Boldt Company, The	$17,821,000
90	BC Contracting Co.	$17,782,460
91	Russell Construction	$16,700,000
92	Sachse Construction	$15,000,000
93	Juneau Construction	$13,992,200
94	Wendel	$12,412,693
95	VJS Construction Services	$11,681,000
96	James McHugh Construction	$11,481,802
97	BRPH	$11,320,000
98	Haskell	$10,924,433
99	CMTA	$9,537,579
100	Bette Companies, The	$9,370,098
101	Graycor Construction	$9,116,263
102	Harkins Builders	$6,100,000
103	Arc Building Partners	$5,795,046
104	Lawrence Group	$5,301,238
105	Tester Construction Group	$4,449,489
106	Wohlsen Construction Company	$4,369,000
107	Kraus-Anderson Construction	$4,000,000
108	Weis Builders	$3,569,028
109	SLAM	$3,346,256
110	VCC	$2,641,211
111	JLG Architects	$2,501,913
112	Benchmark Construction	$2,369,810
113	EBCO General Contractor	$2,006,099
114	Core States Group	$1,892,119
115	Morcon Construction	$1,000,000
116	KCI Technologies	$882,800
117	Progressive AE	$628,799
118	Cotter Consulting	$355,368
119	Henderson Engineers	$331,394
120	McDonough Bolyard Peck	$196,388
121	Doster Construction	$111,414
122	KBE Building Corp.	$70,921
123	Black & Veatch Corp.	$30,000

SOURCE: 2021 Giants 400 Report

Top 150 Office Building/Core+Shell Architecture and AE
	FIRM	2020 REVENUE
1	Gensler	$373,089,742
2	Perkins and Will	$97,000,000
3	NBBJ	$81,300,000
4	Stantec	$78,828,270
5	Skidmore, Owings & Merrill	$66,367,184
6	ZGF Architects	$56,529,060
7	HKS	$50,002,650
8	Kohn Pedersen Fox	$41,290,455
9	Page	$37,536,226
10	HOK	$29,430,000
11	EYP	$25,266,180
12	HGA	$23,649,658
13	LPA	$20,072,212
14	Ware Malcomb	$19,836,565
15	Perkins Eastman	$18,230,426
16	CallisonRTKL	$17,853,828
17	Quinn Evans	$16,298,791
18	HDR	$16,000,000
19	DLR Group	$14,600,000
20	Goettsch Partners	$14,564,000
21	Leo A Daly	$13,416,000
22	Elkus Manfredi Architects	$13,377,000
23	NORR	$12,898,427
24	LMN Architects	$12,739,305
25	Corgan	$12,429,196
26	Clark Nexsen	$11,764,800
27	LS3P Associates	$10,676,465
28	Ennead Architects	$10,084,335
29	Eppstein Uhen Architects	$9,375,000
30	Gresham Smith	$8,928,677
31	RSP Architects	$8,084,000
32	Cooper Carry	$7,931,404
33	Solomon Cordwell Buenz	$7,238,877
34	Bergmann	$6,730,000
35	Cuningham	$6,135,836
36	Kirksey Architecture	$6,077,116
37	Flad Architects	$5,918,000
38	Little Diversified Architectural Consulting	$5,730,790
39	AHL	$5,672,402
40	Sasaki	$5,607,456
41	Rule Joy Trammell + Rubio	$5,519,308
42	Ratio Design	$5,402,927
43	BHDP Architecture	$5,380,081
44	Marmon Mok Architecture	$5,247,247
45	Clark & Enersen	$5,064,533
46	CannonDesign	$5,000,000
47	Handel Architects	$4,777,710
48	GFF	$4,578,619
49	Ryan Companies US / Ryan A+E	$4,360,000
50	Barge Design Solutions	$3,993,154
51	Carrier Johnson + Culture	$3,544,275
52	Smallwood	$3,467,923
53	Goodwyn Mills Cawood	$3,464,520
54	HED	$3,462,000
55	DLZ Corp.	$3,330,611
56	RS&H	$3,000,000
57	Vocon	$2,953,000
58	KZF Design	$2,850,055
59	Weber Thompson	$2,681,014
60	Baskervill	$2,667,116
61	Montroy DeMarco Architecture	$2,515,000
62	Kahler Slater	$2,500,000
—	WDG Architecture	$2,500,000
64	McMillan Pazdan Smith	$2,437,621
65	G70	$2,426,375
66	Davis Brody Bond	$2,381,773
67	FXCollaborative	$2,168,443
68	PGAL	$2,099,000
69	EwingCole	$2,000,000
70	Hart Howerton	$1,913,004
71	Dattner Architects	$1,766,817
72	HuntonBrady Architects	$1,658,595
73	Steinberg Hart	$1,655,573
74	RDC-S111	$1,637,179
75	KGD Architecture	$1,636,274
76	H2M Architects + Engineers	$1,586,316
77	Zyscovich	$1,498,927
78	VLK Architects	$1,400,000
79	LaBella Associates	$1,350,000
80	Performa	$1,326,000
81	Spiezle Architectural Group	$1,319,000
82	HMC Architects	$1,303,771
83	Diamond Schmitt Architects	$1,253,585
84	Think Architecture	$1,247,200
85	WATG	$1,216,217
86	Hanbury	$1,215,337
87	AO	$1,200,000
88	Garmann Miller & Associates	$1,174,800
89	MBH Architects	$1,169,500
90	Plunkett Raysich Architects	$1,151,469
91	Larson Design Group	$1,143,281
92	Hafer	$1,101,867
93	Moody Nolan	$1,081,507
94	TETER	$1,061,000
95	Architecture, Incorporated	$1,049,600
96	Hoefer Welker	$1,026,000
97	Humphreys and Partners	$1,000,000
98	Emersion Design	$976,823
99	Cromwell Architects Engineers	$967,210
100	Champlin Architecture	$947,257
101	Wendel	$940,898
102	Design Collaborative	$860,000
103	Eckenhoff Saunders Architects	$850,000
104	SLCE Architects, LLP	$816,000
105	CPL	$757,851
106	JLG Architects	$698,573
107	Álvarez-Díaz & Villalón \| Architecture & Interior Design	$688,250
108	SGA \| NarmourWright Design	$636,827
109	Niles Bolton Associates	$582,887
110	Mithun	$566,613
111	RDG Planning & Design	$532,974
112	JRS Architect	$500,000
113	Lawrence Group	$494,200
114	BWBR	$487,832
115	Method Architecture	$479,523
116	Ayers Saint Gross	$433,670
117	DLA+ Architecture & Interior Design	$424,000
118	Macgregor Associates Architects	$403,444
119	GSB	$387,500
120	KG+D Architects	$381,620
121	FCA	$322,369
122	Woolpert	$320,654
123	GGLO	$312,000
124	FitzGerald	$307,000
125	Bermello Ajamil & Partners	$306,789
126	Huitt-Zollars	$286,304
127	Becker Morgan Group	$277,178
128	Populous	$263,152
129	Progressive AE	$252,373
130	Fentress Architects	$250,000
131	Crawford Architects	$238,000
132	Architectural Design Consultants	$227,800
133	NAC Architecture	$213,668
134	Shepley Bulfinch	$201,493
135	NSPJ Architects	$195,425
136	Walbridge	$192,466
137	Studio+	$188,400
138	BKV Group	$116,431
139	Massa Multimedia Architecture	$103,021
140	WD Partners	$100,000
141	RGA Architects	$95,000
142	Dahlin Group Architecture Planning	$85,000
143	CESO	$66,793
144	KTGY	$60,304
145	Jackson \| Main Architecture	$55,160
146	Sebree Architects	$40,000
147	RKTB Architects	$39,500
148	AE Design Group	$23,500
149	Warner Nease Bost Architects	$18,000
150	GreenbergFarrow	$8,700

SOURCE: 2021 Giants 400 Report

Top 85 Office Building/Core+Shell Engineering and EA
	FIRM	2020 REVENUE
1	Jacobs	$406,294,123
2	Thornton Tomasetti	$135,034,769
3	Arup	$87,934,245
4	Burns & McDonnell	$86,756,577
5	Alfa Tech Consulting Engineers	$60,000,000
6	WSP USA	$59,691,050
7	NV5 Global	$45,461,000
8	Langan	$44,500,000
9	Dewberry	$41,042,313
10	Kimley-Horn	$27,149,461
11	AECOM	$26,500,000
12	Magnusson Klemencic Associates	$21,688,431
13	AKF Group	$21,350,000
14	Wiss, Janney, Elstner Associates	$15,360,000
15	Syska Hennessy Group	$15,124,608
16	Morrison Hershfield	$11,617,374
17	Buro Happold	$11,227,000
18	Walter P Moore	$10,566,055
19	Cushing Terrell	$10,088,225
20	Salas O'Brien	$9,545,401
21	Vanderweil Engineers	$9,507,900
22	IMEG Corp.	$8,440,160
23	Haskell	$8,273,590
24	Ghafari Associates	$8,000,000
25	Farnsworth Group	$7,308,111
26	KPFF Consulting Engineers	$7,215,000
27	Affiliated Engineers Inc.	$6,242,289
28	ME Engineers	$6,045,000
29	Martin/Martin Consulting Engineers	$5,537,708
30	Olsson	$4,955,267
31	Jaros, Baum & Bolles	$4,627,837
32	CDM Smith	$4,194,032
33	SSOE Group	$4,107,457
34	Ross & Baruzzini	$4,000,000
35	Stanley Consultants	$3,895,455
36	CMTA	$3,880,876
37	Bridgers & Paxton Consulting Engineers	$3,788,023
38	Halff Associates	$3,540,000
39	KCI Technologies	$3,518,500
40	TLC Engineering Solutions	$3,300,000
41	DeSimone Consulting Engineers	$3,014,445
42	McKinstry	$3,000,000
43	H.F. Lenz	$2,971,541
44	I.C. Thomasson Associates	$2,527,935
45	Newcomb & Boyd	$2,475,383
46	ESD	$2,215,373
47	Epstein	$2,065,000
48	Bala Consulting Engineers	$2,000,000
49	French & Parrello Associates	$1,910,400
50	Dunham Associates	$1,750,000
51	GRAEF	$1,512,494
52	ThermalTech Engineering	$1,300,000
53	Osborn Engineering	$1,250,000
54	CHA Consulting	$1,200,000
55	Smith Seckman Reid	$1,169,540
56	PS&S	$1,149,000
57	Paradigm Structural Engineers	$1,052,030
58	Peter Basso Associates	$1,000,000
59	EAPC Architects Engineers	$980,608
60	Schaefer	$960,654
61	Arora Engineers	$950,865
62	MHP Structural Engineers	$944,873
63	Allen + Shariff	$944,132
64	Swanson Rink	$909,428
65	Wallace Design Collective	$800,000
66	M/E Engineering	$711,625
67	JQ Engineering	$708,017
68	Highland Associates	$700,000
69	Primera Engineers	$634,713
70	Karpinski Engineering	$630,000
71	Davis, Bowen & Friedel	$615,671
72	KCL Engineering	$562,577
73	New York Engineers	$556,680
74	G2 Consulting Group	$500,000
75	Hixson Architecture, Engineering, Interiors	$500,000
76	TEECOM	$493,427
77	Galloway & Company	$475,179
78	raSmith	$423,649
79	Spectrum Engineers	$395,998
80	LBYD	$290,303
81	Wick Fisher White	$216,000
82	PBS Engineers	$200,000
83	Kohrs Lonnemann Heil Engineers	$181,001
84	P2S	$164,213
85	EXP	$70,653
86	Architectural Engineers	$20,000

SOURCE: 2021 Giants 400 Report

Top 95 Office Building/Core+Shell Contractors and CM
	FIRM	2020 REVENUE
1	Turner Construction	$3,914,275,103
2	AECOM	$1,393,400,000
3	Gilbane Building Company	$1,296,559,000
4	Clark Group	$1,268,112,086
5	Balfour Beatty US	$1,243,965,107
6	Hensel Phelps	$1,195,817,809
7	DPR Construction	$1,122,363,000
8	Clayco	$1,020,000,000
9	Swinerton	$909,441,070
10	Whiting-Turner Contracting Co., The	$853,721,467
11	Brasfield & Gorrie	$818,662,063
12	JE Dunn	$554,860,359
13	PCL Construction	$411,248,533
14	Webcor	$391,812,433
15	Skanska USA	$335,151,232
16	CBRE	$331,472,077
17	James G. Davis Construction	$325,770,554
18	Choate Construction	$323,927,665
19	Holder Construction	$317,000,000
20	Lendlease	$300,975,354
21	Ryan Companies US / Ryan A+E	$288,980,640
22	Mortenson	$287,254,000
23	McCarthy Holdings	$264,019,001
24	Adolfson & Peterson Construction	$253,957,848
25	Lease Crutcher Lewis	$248,115,552
26	Walsh Group, The	$203,946,091
27	Archstone Builders	$189,195,317
28	Sundt Construction	$181,534,081
29	Batson-Cook	$175,431,090
30	JRM Construction Management	$165,000,000
31	Crossland Construction	$149,391,407
32	Walbridge	$147,466,392
33	STO Building Group	$147,000,000
34	BartonMalow	$145,511,577
35	ARCO Construction Companies	$143,947,798
36	Suffolk Construction	$139,769,316
37	Rodgers Builders	$133,897,204
38	Manhattan Construction Group	$128,116,380
39	Columbia	$122,900,000
40	Austin Industries	$118,175,586
41	C.W. Driver Companies	$110,665,880
42	Hill & Wilkinson General Contractors	$109,978,353
43	Pepper Construction	$102,342,680
44	Rogers-O'Brien Construction	$102,229,575
45	Clancy & Theys Construction	$99,936,420
46	McKinstry	$94,000,000
47	BL Harbert International	$92,559,074
48	New South Construction	$82,028,000
49	McShane Companies, The	$79,533,547
50	Burns & McDonnell	$76,669,008
51	Shawmut Design and Construction	$75,736,808
52	Power Construction	$75,000,000
53	Yates Companies, The	$74,740,000
54	Messer Construction	$65,331,912
55	Jacobs	$57,234,000
56	Weitz Company, The	$53,133,700
57	Hunter Roberts Construction	$52,782,000
58	Joeris General Contractors	$51,632,457
59	W.E. O'Neil Construction	$49,847,040
60	Hill International	$49,326,010
61	Granger Construction	$43,818,036
62	W. M. Jordan Company	$40,003,715
63	Paric Holdings	$39,881,824
64	Hoffman Construction	$39,057,025
65	McCownGordon Construction	$37,546,257
66	Kaufman Lynn Construction	$36,877,789
67	Haselden Construction	$32,327,152
68	Miron Construction	$29,465,751
69	Hoar Construction	$27,460,000
70	CORE Construction Group	$25,764,350
71	Skender	$22,194,366
72	Millie and Severson General Contractors	$19,345,235
73	DeAngelis Diamond	$18,061,000
74	Russell Construction	$16,700,000
75	Robins & Morton	$15,026,013
76	Executive Construction	$15,000,000
77	Wendel	$12,412,693
78	Fortis Construction	$12,086,383
79	Blach Construction	$11,600,000
80	James McHugh Construction	$11,273,561
81	Juneau Construction	$11,203,570
82	Haskell	$10,924,433
83	Sachse Construction	$10,000,000
84	CMTA	$9,537,579
85	Graycor Construction	$9,116,263
86	Saunders Construction	$8,573,182
87	Andersen Construction	$5,000,000
88	S. M. Wilson & Co.	$4,897,111
89	Lawrence Group	$3,879,950
90	Weis Builders	$3,569,028
91	VCC	$2,641,211
92	Harkins Builders	$2,300,000
93	JLG Architects	$1,581,417
94	Wohlsen Construction Company	$1,439,000
95	LeChase Construction Services	$1,086,772
96	Cotter Consulting	$355,368
97	McDonough Bolyard Peck	$196,388
98	STV	$116,117
99	KCI Technologies	$100,600

SOURCE: 2021 Giants 400 Report Note: STV was added on 9/2/21.

Top 145 Workplace/Interior Fitout Architecture and AE
	FIRM	2020 REVENUE
1	Gensler	$356,097,249
2	Interior Architects	$128,214,313
3	HOK	$117,720,000
4	Perkins and Will	$73,750,000
5	Stantec	$68,381,534
6	Nelson Worldwide	$62,560,857
7	Smithgroup	$61,918,521
8	Ted Moudis Associates	$32,500,000
9	TPG Architecture	$31,993,000
10	DLR Group	$30,000,000
11	Ware Malcomb	$25,503,256
12	ZGF Architects	$25,165,721
13	Corgan	$22,688,712
14	RSP Architects	$21,884,000
15	CannonDesign	$20,000,000
16	NORR	$18,107,036
17	BHDP Architecture	$16,484,871
18	HGA	$13,997,048
19	Vocon	$13,583,800
20	Huntsman Architectural Group	$13,535,346
21	Little Diversified Architectural Consulting	$13,408,348
22	CallisonRTKL	$13,134,388
23	Perkins Eastman	$12,781,479
24	LPA	$10,940,378
25	Leo A Daly	$8,944,000
26	Fogarty Finger	$8,246,700
27	LMN Architects	$7,862,175
28	Elkus Manfredi Architects	$6,970,000
29	FXCollaborative	$6,695,761
30	JLL	$6,606,173
31	RS&H	$6,100,000
32	Kirksey Architecture	$5,920,987
33	Eppstein Uhen Architects	$5,513,000
34	Page	$5,451,000
35	Dyer Brown & Associates	$5,402,320
36	REES	$5,213,587
37	KZF Design	$5,099,627
38	FCA	$5,079,705
39	HDR	$5,000,000
40	Flad Architects	$4,842,000
41	H2M Architects + Engineers	$4,758,947
42	CBRE	$4,549,061
43	Clark Nexsen	$4,500,100
44	HED	$4,500,000
45	LS3P Associates	$4,345,502
46	EwingCole	$4,000,000
47	Sasaki	$3,892,943
48	Mithun	$3,887,901
49	Montroy DeMarco Architecture	$3,885,000
50	Champlin Architecture	$3,564,607
51	Progressive AE	$3,511,350
52	Solomon Cordwell Buenz	$3,223,527
53	PGAL	$3,179,000
54	Smallwood	$3,077,467
55	H. Hendy Associates	$3,069,462
56	Quinn Evans	$3,066,012
57	HuntonBrady Architects	$3,008,779
58	Goodwyn Mills Cawood	$3,000,000
59	DGA Planning \| Architecture \| Interiors	$2,991,750
60	GBBN	$2,925,000
61	BWBR	$2,387,124
62	AE Works Ltd.	$2,213,053
63	Ratio Design	$2,107,151
64	GFF	$1,938,911
65	TreanorHL	$1,784,417
66	KCCT	$1,776,656
67	Cooper Carry	$1,741,039
68	Zyscovich	$1,726,529
69	KGD Architecture	$1,724,444
70	RDG Planning & Design	$1,722,990
71	Performa	$1,654,000
72	Macgregor Associates Architects	$1,643,900
73	Architecture, Incorporated	$1,574,400
74	Lunz Group, The	$1,568,335
75	Cromwell Architects Engineers	$1,526,777
76	JRS Architect	$1,500,000
77	SLAM	$1,441,606
78	Design Collaborative	$1,441,009
79	Cuningham	$1,382,906
80	LaBella Associates	$1,220,000
81	DLA+ Architecture & Interior Design	$1,176,000
82	Hoefer Welker	$1,168,000
83	Legat Architects	$1,092,900
84	Moody Nolan	$1,081,507
85	Wendel	$1,055,016
86	Kitchen & Associates	$1,026,417
87	MBH Architects	$1,013,000
88	CO Architects	$939,560
89	Jackson \| Main Architecture	$899,777
90	Baskervill	$889,039
91	McMillan Pazdan Smith	$862,465
92	Method Architecture	$852,485
93	JLG Architects	$845,678
94	Lawrence Group	$839,892
95	Emersion Design	$809,070
96	Bergmann	$760,000
97	Kahler Slater	$750,000
98	GRW	$640,027
99	AHL	$632,286
100	BSA LifeStructures	$599,967
101	Hafer	$584,063
102	TRIA	$578,200
103	VLK Architects	$550,000
104	Álvarez-Díaz & Villalón \| Architecture & Interior Design	$546,522
105	SHP	$540,000
106	SchenkelShultz Architecture	$538,716
107	FGM Architects	$521,461
108	Studio+	$520,699
109	FitzGerald	$511,000
110	Steinberg Hart	$504,070
111	RRMM Architects	$476,978
112	Eckenhoff Saunders Architects	$450,000
113	Plunkett Raysich Architects	$443,654
114	HNTB	$443,562
115	Spiezle Architectural Group	$391,000
116	KG+D Architects	$367,805
117	Gresham Smith	$362,663
118	Urbahn Architects	$331,241
119	HBG Design	$327,000
120	ATA Beilharz Architects	$288,000
121	Fentress Architects	$250,000
122	Davis Brody Bond	$230,329
123	JCJ Architecture	$215,794
124	MKM Architecture + Design	$214,490
125	PCA	$181,710
126	Finegold Alexander Architects	$159,774
127	Dahlin Group Architecture Planning	$145,000
128	BSB Design	$140,040
129	CetraRuddy Architecture	$127,392
130	CSArch	$125,357
131	Architecture Design Collaborative	$125,000
132	//3877	$120,000
133	Line Scale Form	$106,030
134	Niles Bolton Associates	$102,944
135	Curtis + Ginsberg Architects	$100,000
—	Sheehan Nagle Hartray Architects	$100,000
137	DLA Architects	$97,029
138	Randall-Paulson Architects	$68,132
139	Clark & Enersen	$57,798
140	Taylor Design	$57,000
141	Nehmer	$50,000
142	BKV Group	$46,697
143	AE Design Group	$34,000
144	Marmon Mok Architecture	$29,643
145	Miller Dunwiddie	$26,941
146	Garmann Miller & Associates	$18,600
147	CPL	$16,823
148	Hanbury	$8,506
149	Sebree Architects	$5,000
150	45 Architecture	$1,357

SOURCE: 2021 Giants 400 Report

Top 60 Workplace/Interior Fitout Engineering and EA
	FIRM	2020 REVENUE
1	AECOM	$117,000,000
2	Jacobs	$70,405,877
3	EXP	$49,550,466
4	Jaros, Baum & Bolles	$28,239,096
5	Buro Happold	$24,486,000
6	Alfa Tech Consulting Engineers	$20,000,000
7	Syska Hennessy Group	$18,485,631
8	ESD	$16,674,507
9	IMEG Corp.	$16,200,260
10	TEECOM	$9,426,111
11	Bala Consulting Engineers	$8,889,000
12	Ghafari Associates	$7,000,000
13	Shive-Hattery	$6,603,804
14	BRPH	$6,313,166
15	CMTA	$6,150,083
16	WSP USA	$6,088,639
17	Henderson Engineers	$6,078,145
18	Affiliated Engineers Inc.	$5,107,328
19	Langan	$5,000,000
20	Newcomb & Boyd	$4,916,998
21	Salas O'Brien	$4,215,213
22	Vanderweil Engineers	$3,847,700
23	KPFF Consulting Engineers	$3,607,000
24	HEAPY	$3,602,972
25	Highland Associates	$3,400,000
26	ME Engineers	$3,103,000
27	Cushing Terrell	$2,904,800
28	CDM Smith	$2,621,270
29	TLC Engineering Solutions	$2,300,000
30	Dunham Associates	$2,050,000
31	Hixson Architecture, Engineering, Interiors	$2,000,000
32	Peter Basso Associates	$1,500,000
33	Kohrs Lonnemann Heil Engineers	$1,322,122
34	Karpinski Engineering	$1,280,000
35	Apogee Consulting Group	$1,192,311
36	Galloway & Company	$1,108,753
37	Wick Fisher White	$972,000
38	Martin/Martin Consulting Engineers	$808,252
39	SSC Engineering	$723,586
40	M/E Engineering	$711,625
41	Magnusson Klemencic Associates	$601,138
42	Davis, Bowen & Friedel	$589,646
43	DHE Engineering	$589,477
44	Kohler Ronan	$578,553
45	Epstein	$529,800
46	Osborn Engineering	$500,000
47	Spectrum Engineers	$366,320
48	PBS Engineers	$300,000
49	DeSimone Consulting Engineers	$298,132
50	Architectural Engineers	$238,066
51	PS&S	$214,000
52	Black & Veatch Corp.	$210,000
53	Arora Engineers	$208,133
54	Wallace Design Collective	$200,000
55	VJS Construction Services	$197,000
56	Marque Engineering	$141,680
57	LBYD	$86,789
58	Allen + Shariff	$82,848
59	JQ Engineering	$78,343
60	SchraderGroup	$13,953

SOURCE: 2021 Giants 400 Report

Top 80 Workplace/Interior Fitout Contractors and CM
	FIRM	2020 REVENUE
1	STO Building Group	$2,705,000,000
2	HITT Contracting	$1,076,858,092
3	J.T. Magen	$943,431,257
4	Clune Construction	$802,281,446
5	CBRE	$728,785,486
6	Swinerton	$631,984,472
7	Hensel Phelps	$460,584,757
8	JRM Construction Management	$428,000,000
9	Gilbane Building Company	$400,628,000
10	James G. Davis Construction	$313,903,727
11	Balfour Beatty US	$260,709,961
12	Skender	$258,689,322
13	Whiting-Turner Contracting Co., The	$214,323,486
14	Executive Construction	$190,500,000
15	JLL	$169,019,868
16	Weitz Company, The	$165,129,900
17	Pepper Construction	$150,691,668
18	Choate Construction	$148,893,506
19	Holder Construction	$148,000,000
20	PCL Construction	$137,082,844
21	Lease Crutcher Lewis	$129,906,346
22	Nabholz	$124,113,591
23	Manhattan Construction Group	$84,433,370
24	JE Dunn	$83,928,508
25	Rodgers Builders	$74,120,330
26	Andersen Construction	$62,000,000
27	C.W. Driver Companies	$60,161,646
28	Shawmut Design and Construction	$57,807,128
29	Saunders Construction	$52,573,610
30	Power Construction	$49,000,000
31	LeChase Construction Services	$48,553,534
32	Schimenti Construction	$47,000,000
33	Joeris General Contractors	$43,271,342
34	Hunter Roberts Construction	$38,305,000
35	Suffolk Construction	$38,228,476
36	Miron Construction	$34,178,694
37	Ryan Companies US / Ryan A+E	$32,795,358
38	Fortis Construction	$29,898,736
39	Hill & Wilkinson General Contractors	$29,185,323
40	Archstone Builders	$27,183,364
41	McCownGordon Construction	$26,794,722
42	Robins & Morton	$25,842,611
43	Paric Holdings	$20,000,000
44	New South Construction	$19,877,000
45	Donohoe Construction	$18,042,552
46	S. M. Wilson & Co.	$18,008,648
47	Boldt Company, The	$17,821,000
48	BC Contracting Co.	$17,782,460
49	Blach Construction	$14,500,000
50	VJS Construction Services	$11,681,000
51	BRPH	$11,320,000
52	Bette Companies, The	$9,370,098
53	Clancy & Theys Construction	$8,393,755
54	BartonMalow	$7,878,345
55	Skanska USA	$7,783,396
56	CORE Construction Group	$6,441,098
57	Arc Building Partners	$5,795,046
58	Sachse Construction	$5,000,000
59	Tester Construction Group	$4,449,489
60	Kraus-Anderson Construction	$4,000,000
61	Harkins Builders	$3,800,000
62	SLAM	$3,346,256
63	Rogers-O'Brien Construction	$3,282,432
64	Wohlsen Construction Company	$2,930,000
65	W. M. Jordan Company	$2,841,233
66	Juneau Construction	$2,788,630
67	Benchmark Construction	$2,369,810
68	EBCO General Contractor	$2,006,099
69	Core States Group	$1,892,119
70	Lawrence Group	$1,421,288
71	Morcon Construction	$1,000,000
72	JLG Architects	$920,496
73	STV	$808,373
74	KCI Technologies	$782,200
75	Progressive AE	$628,799
76	Henderson Engineers	$331,394
77	Batson-Cook	$217,024
78	James McHugh Construction	$208,241
79	Doster Construction	$111,414
80	KBE Building Corp.	$70,921
81	Hill International	$63,637
82	Black & Veatch Corp.	$30,000