Commercial

Rank	Firm	$Mil
1	Gensler	5.25
2	SmithGroupJJR	3.88
3	Dekker/Perich/Sabatini	2.31
4	Architekton	1.90
5	DLR Group	1.53
6	evolution design	1.30
7	Ninyo & Moore	1.28
8	Walker Parking Consultants	1.06
9	Wood, Patel & Associates	1.00
10	Bridgers & Paxton Consulting Engineers Inc.	1.00

Structural Engineering

Rank	Firm	$Mil
1	HDR	42.40
2	AECOM Technology Corp.	12.54
3	Gannett Fleming Inc.	3.93
4	Parsons Brinckerhoff	3.74
5	Schneider Structural Engineers	1.78
6	Merrick & Co.	1.70
7	Dekker/Perich/Sabatini	1.63
8	Zachry Holdings Inc.	1.39
9	Hatch Mott MacDonald	1.04
10	Burns & McDonnell	1.00

Power

Rank	Firm	$Mil
1	Burns & McDonnell	13.83
2	HDR	11.82
3	Zachry Holdings Inc.	5.56
4	SWCA Environmental Consultants	4.10
5	Stanley Consultants	3.32
6	Terracon Consultants Inc.	3.27
7	Ninyo & Moore	1.00
8	Souder Miller & Associates	0.81
9	Logan Simpson Design Inc.	0.70
10	Schneider Structural Engineers	0.51

Hazardous Waste

Rank	Firm	$Mil
1	ARCADIS U.S.	26.30
2	HDR	5.06
3	Daniel B. Stephens & Associates Inc. (DBS&A)	4.76
4	Cardno	2.18
5	Engineering and Environmental Consultants Inc.	1.93

Architecture

Rank	Firm	$Mil
1	Dekker/Perich/Sabatini	15.05
2	Orcutt | Winslow	13.94
3	Gensler	9.28
4	DLR Group	9.12
5	Architekton	5.50
6	SmithGroupJJR	5.48
7	Michael Baker International	5.09
8	Westlake Reed Leskosky	4.40
9	DWL Architects + Planners Inc.	4.31
10	SMPC PA	3.36
11	Emc2 Group Architects Planners PC	3.33
12	Tate Snyder Kimsey	3.25
13	NCA Architects LLC	3.22
14	Nelsen Partners Inc.	2.87
15	PHX Architecture	2.60
16	ADM Group Inc.	2.58
17	Merrick & Co.	2.27
18	AECOM Technology Corp.	2.11
19	Wilson & Co., Engineers & Architects	1.79
20	RMKM Architecture PC	1.78

Transportation

Rank	Firm	$Mil
1	HDR	36.77
2	Parsons Brinckerhoff	24.92
3	AECOM Technology Corp.	20.76
4	Kimley-Horn and Associates Inc.	18.91
5	AZTEC Engineering Group Inc.	14.95
6	Wilson & Co., Engineers & Architects	11.55
7	Atkins North America	9.63
8	Stanley Consultants	9.00
9	Stantec	8.76
10	Gannett Fleming Inc.	8.06
11	Molzen Corbin	5.95
12	EPS Group Inc.	4.90
13	Psomas	4.75
14	Bohannan Huston Inc.	4.17
15	Michael Baker International	3.79
16	Terracon Consultants Inc.	3.50
17	Dibble Engineering	3.00
18	Logan Simpson Design Inc.	2.87
19	G.C. Wallace Inc.	2.83
20	Cardno	2.18

MEP Engineering

Rank	Firm	$Mil
1	Bridgers & Paxton Consulting Engineers Inc.	15.84
2	Burns & McDonnell	10.35
3	JBA Consutling Engineers	6.32
4	Merrick & Co.	5.68
5	AECOM Technology Corp.	4.60
6	Henderson Engineers Inc.	4.45
7	DLR Group	3.26
8	Zachry Holdings Inc.	2.50
9	SmithGroupJJR	2.42
10	Stanley Consultants	2.32

Civil Engineering

Rank	Firm	$Mil
1	Kimley-Horn and Associates Inc.	27.63
2	Carollo Engineers Inc.	21.59
3	MWH Global Inc.	20.47
4	Bohannan Huston Inc.	18.30
5	Stantec	16.63
6	Wilson & Co., Engineers & Architects	16.12
7	Michael Baker International	13.28
8	Wilson Engineers	12.56
9	Parsons Brinckerhoff	12.46
10	Atkins North America	12.43
11	Stanley Consultants	10.64
12	Dibble Engineering	10.50
13	Souder Miller & Associates	9.67
14	Cardno	8.73
15	Wood, Patel & Associates	8.50
16	AZTEC Engineering Group Inc.	8.41
17	EPS Group Inc.	7.00
18	Bowman Consulting	6.60
19	Psomas	6.18
20	Molzen Corbin	5.95