Companies are ranked according to revenue for design services performed in 2007 in $ millions (*). Those with subsidiaries are indicated by (†). Firms not ranked last year are designated **. Some markets may not add up to 100% due to omission of "other" miscellaneous market category and rounding. NA=Not available.

Key to type of Firm: A=architect; E=engineer; EC=engineer-contractor; AE=architect-engineer; EA=engineer-architect; ENV=environmental; GE=geotechnical engineer; L=landscape architect; P=planner; O=other. Other combinations possible. Firms classified themselves.

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Click below for more 2014 Top Design Firms Sectors:
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Structural Engineering

Rank	Firm	($ Mil)
1	Parsons Brinckerhoff	46.56
2	Michael Baker International	30.94
3	Gannett Fleming Inc.	21.10
4	Dewberry	19.71
5	STV	14.92
6	Whitman, Requardt & Associates LLP	12.22
7	SK&A	11.72
8	AECOM Technology Corp.	8.35
9	SAI Consulting Engineers Inc.	8.00
10	KCI Technologies Inc.	7.20
11	Johnson, Mirmiran & Thompson Inc.	6.62
12	EwingCole Inc.	6.30
13	HNTB Corp.	4.80
14	McCormick Taylor Inc.	4.74
15	Stantec	4.50
16	Collins Engineers Inc.	4.38
17	Walker Parking Consultants	4.31
18	CSD Engineers	4.08
19	Alfred Benesch & Co.	3.82
20	Pennoni Associates	3.12

Industrial Process

Rank	Firm	($ Mil)
1	CSD Engineers	32.65
2	CRB	7.89
3	Civil & Environmental Consultants Inc.	6.90
4	Hargrove Engineers + Constructors	5.48
5	Clark Nexsen PC	1.58
6	Michael Baker International	1.02

Religious and Cultural

Rank	Firm	($ Mil)
1	SmithGroupJJR	5.83
2	EwingCole Inc.	5.30
3	Westlake Reed Leskosky	4.27
4	WSP Global Inc.	2.81
5	Stantec	1.89

Master-Planned Development/Site Infrastructure

Rank	Firm	($ Mil)
1	Pennoni Associates	24.19
2	Dewberry	10.80
3	Geo-Technology Associates Inc.	7.81
4	Stantec	6.71
5	Whitman, Requardt & Associates LLP	2.98
6	Becker Morgan Group Inc.	2.50
7	STV	2.29
8	Kimley-Horn and Associates Inc.	2.00
9	FXFOWLE Architects	0.94
10	SmithGroupJJR	0.63

Hazardous Waste

Rank	Firm	($ Mil)
1	ARCADIS U.S.	56.45
2	AECOM Technology Corp.	19.58
3	Cardno	16.81
4	Michael Baker International	9.15
5	Hatch Mott MacDonald	6.59
6	Gensler	5.29
7	Geosyntec Consultants	4.53
8	Skelly and Loy Inc.	3.62
9	KCI Technologies Inc.	3.40
10	Pennoni Associates	2.49

Interior Design

Rank	Firm	($ Mil)
1	Gensler	29.37
2	Hickok Cole Architects	7.80
3	Hellmuth, Obata & Kassabaum PC (HOK)	7.54
4	Stantec	7.01
5	Perkins+Will	6.89
6	NELSON	4.19
7	Page	4.07
8	Francis Cauffman	3.33
9	WDG Architecture	3.24
10	VOA Associates Inc.	3.20
11	EwingCole Inc.	3.00
12	Cooper Carry Inc.	2.37
13	Perkins Eastman	2.34
14	SmithGroupJJR	2.25
15	Baskervill	2.01
16	Ballinger	1.34
17	Clark Nexsen PC	1.20
18	ZGF Architects LLP	1.15
19	Ayers Saint Gross	1.08
20	Highland Associates	0.62

Sewerage/Solid Waste

Rank	Firm	($ Mil)
1	AECOM Technology Corp.	45.46
2	ARCADIS U.S.	32.46
3	Greeley and Hansen	30.38
4	Gannett Fleming Inc.	16.37
5	Whitman, Requardt & Associates LLP	12.63
6	Herbert, Rowland & Grubic Inc.	9.16
7	Johnson, Mirmiran & Thompson Inc.	8.27
8	KCI Technologies Inc.	8.10
9	Buchart Horn Inc./BASCO Associates	5.82
10	Atkins North America	5.28
11	Dewberry	5.23
12	Civil & Environmental Consultants Inc.	5.00
13	Geosyntec Consultants	4.69
14	Pennoni Associates	4.30
15	MWH Global Inc.	3.55
16	A. Morton Thomas and Associates	3.50
17	Hatch Mott MacDonald	3.37
18	EBA Engineering Inc.	3.05
19	Michael Baker International	3.02
20	Clark Nexsen PC	1.85

Petroleum

Rank	Firm	($ Mil)
1	Willbros Group Inc.	23.64
2	Civil & Environmental Consultants Inc.	23.00
3	Michael Baker International	22.34
4	STV	21.94
5	Cardno	16.81
6	Bowman Consulting	12.44
7	Stantec	11.67
8	Hatch Mott MacDonald	9.57
9	CSD Engineers	6.11
10	Larson Design Group	4.74