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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Environmental & Geotechnical Engineering

Rank	Firm	($ Mil)
1	AECOM Technology Corp.	80.43
2	Gannett Fleming Inc.	50.74
3	Michael Baker International	37.21
4	Whitman, Requardt & Associates LLP	33.89
5	Cardno	33.61
6	KCI Technologies Inc.	28.10
7	Geo-Technology Associates Inc.	25.24
8	McCormick Taylor Inc.	20.66
9	Stantec	17.54
10	Civil & Environmental Consultants Inc.	14.37
11	Skelly and Loy Inc.	12.85
12	Langan Engineering & Environmental Services	11.96
13	Geosyntec Consultants	9.22
14	Atkins North America	7.86
15	Draper Aden Associates	6.62
16	STV	5.29
17	Hatch Mott MacDonald	4.94
18	WSP Global Inc.	3.98
19	Timmons Group	3.55
20	Pennoni Associates	3.50

Water Supply

Rank	Firm	($ Mil)
1	Michael Baker International	47.72
2	ARCADIS U.S.	12.28
3	Whitman, Requardt & Associates LLP	12.16
4	Stantec	11.06
5	Hatch Mott MacDonald	8.93
6	Atkins North America	8.20
7	KCI Technologies Inc.	7.30
8	Dewberry	6.58
9	Timmons Group	6.17
10	Greeley and Hansen	3.64
11	EBA Engineering Inc.	3.05
12	Skelly and Loy Inc.	2.31
13	AECOM Technology Corp.	2.13
14	A. Morton Thomas and Associates	2.12
15	Parsons Brinckerhoff	2.11
16	Pennoni Associates	2.08
17	Kimley-Horn and Associates Inc.	2.00
18	MWH Global Inc.	1.64
19	Buchart Horn Inc./BASCO Associates	1.51
20	Geosyntec Consultants	1.17

Transportation

Rank	Firm	($ Mil)
1	Parsons Brinckerhoff	139.00
2	AECOM Technology Corp.	114.08
3	Johnson, Mirmiran & Thompson Inc.	107.81
4	Michael Baker International	104.33
5	HNTB Corp.	68.44
6	McCormick Taylor Inc.	67.74
7	STV	54.51
8	Whitman, Requardt & Associates LLP	53.50
9	KCI Technologies Inc.	43.50
10	Gannett Fleming Inc.	38.66
11	Dewberry	36.95
12	Stantec	36.48
13	A. Morton Thomas and Associates	35.20
14	Pennoni Associates	33.20
15	SAI Consulting Engineers Inc.	24.00
16	Kimley-Horn and Associates Inc.	21.31
17	Erdman Anthony	14.54
18	Gensler	12.64
19	EBA Engineering Inc.	12.53
20	Whitney, Bailey, Cox & Magnani LLC	12.48

Architecture

Rank	Firm	($ Mil)
1	Gensler	45.24
2	EwingCole Inc.	37.10
3	Moseley Architects	32.04
4	AECOM Technology Corp.	30.25
5	Shalom Baranes Associates PC	28.82
6	Michael Baker International	28.16
7	Stantec	28.04
8	Whitman, Requardt & Associates LLP	23.31
9	Page	23.07
10	Hellmuth, Obata & Kassabaum PC (HOK)	22.82
11	WDG Architecture	21.33
12	Ayers Saint Gross	18.34
13	Perkins+Will	17.13
14	ZGF Architects LLP	15.94
15	Crabtree, Rohrbaugh & Associates - Architects	13.77
16	SmithGroupJJR	12.85
17	Ballinger	12.25
18	Clark Nexsen PC	12.01
19	GWWO Inc./Architects	10.60
20	Perkins Eastman	9.25

Surveying and Mapping

Rank	Firm	($ Mil)
1	Dewberry	26.14
2	Bowman Consulting	20.22
3	Michael Baker International	12.20
4	Cardno	11.20
5	Gannett Fleming Inc.	10.08
6	Stantec	10.00
7	Willbros Group Inc.	9.46
8	KCI Technologies Inc.	8.40
9	Johnson, Mirmiran & Thompson Inc.	6.65
10	Civil & Environmental Consultants Inc.	4.95
11	Draper Aden Associates	4.81
12	Whitman, Requardt & Associates LLP	4.34
13	Hatch Mott MacDonald	3.93
14	Timmons Group	3.46
15	Herbert, Rowland & Grubic Inc.	3.28
16	STV	3.13
17	Pennoni Associates	2.98
18	A. Morton Thomas and Associates	2.91
19	Larson Design Group	1.20
20	Whitney, Bailey, Cox & Magnani LLC	0.86