May 6, 2013

The Top Design Firms list, published annually, ranks the largest U.S.-based designs firms, both publicly and privately held, based on design-specific revenue.

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More detailed information on the Top List
Top Design Firms Main Rankings

Related Article:
Owners Seek More Collaboration, Sustainability from Designers

Click below for earlier editions:
2012 | 2011 | 2010 | 2009 | 2008

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Georgia

Rank	Firm	($ mil)
1	ARCADIS U.S.	50.15
2	Atkins	34.44
3	AECOM	29.25
4	Geosyntec Consultants	22.93
5	Perkins+Will	22.81
6	Hargrove Engineers + Constructors	17.52
7	HNTB Corp.	17.36
8	Gensler	16.13
9	Gresham, Smith and Partners	14.24
10	Cooper Carry Inc.	14.17
11	Pond & Co. Inc.	13.70
12	Merrick & Co.	13.02
13	MWH Global	11.81
14	CDH Partners Inc.	11.57
15	Morrison Hershfield	11.56
16	Terracon Consultants Inc.	11.47
17	Parsons Brinckerhoff	10.58
18	Smallwood, Reynolds, Stewart, Stewart & Assoc. Inc.	9.99
19	Stantec	9.68
20	Lord, Aeck & Sargent	9.66

South Carolina

Rank	Firm	($ mil)
1	O'Neal Inc.	19.60
2	LS3P ASSOCIATES LTD.	18.17
3	AECOM	14.97
4	Terracon Consultants Inc.	12.28
5	Gresham, Smith and Partners	9.13
6	BRPH	5.70
7	Atkins	5.32
8	ARCADIS U.S.	5.28
9	Stevens & Wilkinson	5.21
10	KCI Technologies Inc.	5.10
11	WK Dickson & Co. Inc.	4.80
12	Woolpert Inc.	4.77
13	Stantec	4.47
14	GEL Engineering LLC	4.35
15	STV	3.59
16	ESP Associates P.A.	3.14
17	Parsons Brinckerhoff	2.63
18	Collins Engineers Inc.	2.59
19	Pond & Co. Inc.	2.49
20	Cooper Carry Inc.	2.48

Florida

Rank	Firm	($ mil)
1	AECOM	151.42
2	Atkins	138.63
3	Reynolds, Smith and Hills Inc.	100.20
4	Zachry Holdings Inc.	97.99
5	HNTB Corp.	89.81
6	Parsons Brinckerhoff	71.84
7	ARCADIS U.S.	59.25
8	Stantec	31.39
9	TLC Engineering for Architecture Inc.	27.49
10	DRMP Inc.	26.92
11	CPH Inc.	26.33
12	Kisinger Campo & Associates Corp.	26.19
13	Gresham, Smith and Partners	26.08
14	Jones Edmunds & Associates Inc.	25.75
15	Terracon Consultants Inc.	24.36
16	exp	22.58
17	Geosyntec Consultants	18.40
18	BRPH	16.94
19	Schenkel & Shultz Inc.	16.14
20	Gannett Fleming Inc.	15.79

North Carolina

Rank	Firm	($ mil)
1	ARCADIS U.S.	40.58
2	McKim & Creed Inc.	30.08
3	AECOM	28.06
4	STV	22.47
5	LS3P ASSOCIATES LTD.	20.47
6	HNTB Corp.	17.75
7	Dewberry	16.06
8	Little	15.47
9	Atkins	14.13
10	Terracon Consultants Inc.	13.25
11	Stantec	12.95
12	Stewart	12.71
13	Parsons Brinckerhoff	11.85
14	ESP Associates P.A.	11.68
15	Mulkey Engineers & Consultants	11.38
16	Perkins+Will	10.25
17	WK Dickson & Co. Inc.	9.80
18	Woolpert Inc.	8.63
19	KCI Technologies Inc.	8.05
20	Gensler	8.01

Environmental & Geotechnical

Rank	Firm	($ mil)
1	Geosyntec Consultants	39.70
2	Terracon Consultants Inc.	34.99
3	AECOM	31.31
4	Atkins	14.88
5	Woolpert Inc.	12.87
6	Stantec	11.09
7	Parsons Brinckerhoff	9.69
8	MWH Global	9.55
9	GLE Associates Inc.	5.78
10	GEL Engineering LLC	5.70
11	KCI Technologies Inc.	4.83
12	Gannett Fleming Inc.	4.25
13	ESP Associates P.A.	2.32
14	Stewart	2.18
15	WK Dickson & Co. Inc.	1.51
16	STV	1.21
17	Jones Edmunds & Associates Inc.	1.08
18	Mulkey Engineers & Consultants	0.56
19	Cherokee Enterprises Inc.	0.50
20	Dewberry	0.15
21	Gresham, Smith and Partners	0.09
22	Chen Moore and Associates	0.08
23	Hatch Mott MacDonald	0.08
24	Goodwyn, Mills & Cawood Inc.	0.05
25	Ayres Associates	0.01

Green Design

Rank	Firm	($ mil)
1	TLC Engineering for Architecture Inc.	15.46
2	Perkins+Will	13.21
3	Little	12.82
4	LS3P ASSOCIATES LTD.	11.45
5	HuntonBrady Architects	9.00
6	VOA Associates Incorporated	8.46
7	BRPH	7.19
8	Cooper Carry Inc.	6.63
9	Syska Hennessy Group	5.84
10	Lord, Aeck & Sargent	5.09
11	Zyscovich Architects	4.90
12	Schenkel & Shultz Inc.	3.85
13	HNTB Corp.	3.83
14	Stevens & Wilkinson	3.56
15	Burns & McDonnell	3.50
16	Gresham, Smith and Partners	3.48
17	Stewart	3.40
18	Merrick & Co.	2.95
19	ACAI Associates Inc.	2.66
20	The Beck Group	2.40

Manufacturing

Rank	Firm	($ mil)
1	Gresham, Smith and Partners	7.25
2	O'Neal Inc.	4.50
3	GEL Engineering LLC	2.10
4	Terracon Consultants Inc.	1.40
5	Burns & McDonnell	0.94
6	Affiliated Engineers Inc.	0.75
7	Geosyntec Consultants	0.69
8	McKim & Creed Inc.	0.47
9	ESP Associates P.A.	0.19
10	Stantec	0.19
11	Collins Engineers Inc.	0.14
12	Schenkel & Shultz Inc.	0.04

Education/Research

Rank	Firm	($ mil)
1	Perkins+Will	17.11
2	Schenkel & Shultz Inc.	10.89
3	LS3P ASSOCIATES LTD.	8.72
4	Stevens & Wilkinson	7.22
5	SfL+a Architects	6.20
6	Cooper Carry Inc.	5.08
7	Terracon Consultants Inc.	4.96
8	BRPH	4.91
9	Zyscovich Architects	4.06
10	ACAI Associates Inc.	3.88
11	Stewart	3.81
12	TLC Engineering for Architecture Inc.	3.55
13	Lord, Aeck & Sargent	3.09
14	Moseley Architects	2.85
15	Affiliated Engineers Inc.	2.69
16	GALLO HERBERT ARCHITECTS	2.17
17	Niles Bolton Associates	2.07
18	HuntonBrady Architects	1.79
19	Smallwood, Reynolds, Stewart, Stewart & Assoc. Inc.	1.59
20	The Beck Group	1.59

Interior Design

Rank	Firm	($ mil)
1	Gensler	19.99
2	Keith and Schnars P.A.	8.50
3	Perkins+Will	3.96
4	Cooper Carry Inc.	3.84
5	Smallwood, Reynolds, Stewart, Stewart & Assoc. Inc.	3.74
6	Little	3.73
7	Gresham, Smith and Partners	3.55
8	LS3P ASSOCIATES LTD.	2.40
9	Stevens & Wilkinson	2.21
10	CDH Partners Inc.	1.55
11	Wakefield Beasley & Associates Architects	1.49
12	VOA Associates Incorporated	1.48
13	CJMW Architecture	1.36
14	Adache Group Architects	1.10
15	Perkins Eastman	1.09
16	HuntonBrady Architects	0.99
17	Lord, Aeck & Sargent	0.70
18	Merrick & Co.	0.70
19	Niles Bolton Associates	0.60
20	api(+)	0.56

Power

Rank	Firm	($ mil)
1	Zachry Holdings Inc.	103.44
2	McKim & Creed Inc.	6.51
3	Burns & McDonnell	4.51
4	Stantec	4.17
5	Geosyntec Consultants	3.95
6	Atkins	1.36
7	GEL Engineering LLC	1.15
8	KCI Technologies Inc.	1.14
9	Terracon Consultants Inc.	1.13
10	Affiliated Engineers Inc.	1.08
11	O'Neal Inc.	1.00
12	MWH Global	0.99
13	ESP Associates P.A.	0.74
14	Hargrove Engineers + Constructors	0.50
15	exp	0.49
16	Syska Hennessy Group	0.35
17	Dewberry	0.22
18	Jones Edmunds & Associates Inc.	0.08
19	Ramey Kemp & Associates Inc.	0.05
20	Collins Engineers Inc.	0.04

Telecommunications

Rank	Firm	($ mil)
1	Morrison Hershfield	15.76
2	exp	7.69
3	KCI Technologies Inc.	5.76
4	Syska Hennessy Group	5.10
5	Atkins	1.79
6	Gensler	1.15
7	Terracon Consultants Inc.	0.62
8	Affiliated Engineers Inc.	0.46
9	Thornton Tomasetti	0.05

Structural Engineering

Rank	Firm	($ mil)
1	Parsons Brinckerhoff	29.07
2	Zachry Holdings Inc.	28.21
3	STV	19.36
4	Ayres Associates	4.61
5	Reynolds, Smith and Hills Inc.	4.60
6	Morrison Hershfield	4.56
7	H.W. Lochner Inc	4.20
8	Stewart	3.89
9	Collins Engineers Inc.	3.88
10	O'Neal Inc.	3.80
11	Woolpert Inc.	3.69
12	Stantec	3.11
13	DRMP Inc.	3.02
14	Thornton Tomasetti	2.98
15	KCI Technologies Inc.	2.40
16	MWH Global	2.39
17	Gresham, Smith and Partners	2.07
18	Wetherill Engineering Inc	1.81
19	TLC Engineering for Architecture Inc.	1.79
20	BRPH	1.78

Surveying & Mapping

Rank	Firm	($ mil)
1	McKim & Creed Inc.	26.47
2	ESP Associates P.A.	7.46
3	DRMP Inc.	6.24
4	Stantec	5.78
5	Woolpert Inc.	5.57
6	Dewberry	3.96
7	CPH Inc.	2.63
8	Atkins	2.15
9	Mulkey Engineers & Consultants	2.08
10	Keith and Schnars P.A.	2.00
11	Stewart	1.46
12	MWH Global	1.19
13	KCI Technologies Inc.	0.77
14	GEL Engineering LLC	0.75
15	Merrick & Co.	0.70
16	exp	0.48
17	BRPH	0.46
18	Hatch Mott MacDonald	0.30
19	Weston & Sampson	0.30
20	Gresham, Smith and Partners	0.30

Transportation

Rank	Firm	($ mil)
1	Atkins	147.25
2	HNTB Corp.	119.62
3	Parsons Brinckerhoff	90.65
4	Reynolds, Smith and Hills Inc.	79.30
5	AECOM	74.66
6	STV	39.17
7	ARCADIS U.S.	35.17
8	Kisinger Campo & Associates Corp.	32.49
9	Stantec	24.26
10	DRMP Inc.	17.84
11	Terracon Consultants Inc.	16.82
12	H.W. Lochner Inc	16.79
13	KCI Technologies Inc.	15.20
14	Mulkey Engineers & Consultants	13.50
15	Gresham, Smith and Partners	11.85
16	Hatch Mott MacDonald	11.60
17	Gannett Fleming Inc.	11.30
18	Keith and Schnars P.A.	10.00
19	McKim & Creed Inc.	8.92
20	Ayres Associates	6.88

Architecture

Rank	Firm	($ mil)
1	Perkins+Will	36.52
2	LS3P ASSOCIATES LTD.	36.33
3	Gresham, Smith and Partners	26.28
4	Reynolds, Smith and Hills Inc.	18.60
5	BRPH	18.35
6	Schenkel & Shultz Inc.	17.42
7	Cooper Carry Inc.	15.35
8	Lord, Aeck & Sargent	13.35
9	HuntonBrady Architects	12.70
10	Little	11.70
11	Niles Bolton Associates	11.00
12	Zyscovich Architects	9.63
13	Gensler	9.32
14	AECOM	9.27
15	CDH Partners Inc.	8.67
16	VOA Associates Incorporated	7.30
17	SfL+a Architects	7.25
18	ACAI Associates Inc.	6.94
19	Lawson Group Architects Inc.	6.73
20	Stevens & Wilkinson	6.59

General Building

Rank	Firm	($ mil)
1	Perkins+Will	43.56
2	Terracon Consultants Inc.	31.46
3	Reynolds, Smith and Hills Inc.	30.90
4	LS3P ASSOCIATES LTD.	28.55
5	Gensler	27.88
6	Gresham, Smith and Partners	26.91
7	TLC Engineering for Architecture Inc.	26.86
8	BRPH	20.05
9	Little	19.73
10	AECOM	19.21
11	Pond & Co. Inc.	16.99
12	Cooper Carry Inc.	16.63
13	Atkins	15.12
14	Stantec	14.95
15	Affiliated Engineers Inc.	14.49
16	Lord, Aeck & Sargent	14.05
17	Stevens & Wilkinson	13.90
18	HuntonBrady Architects	13.69
19	Schenkel & Shultz Inc.	13.15
20	Merrick & Co.	13.02

Civil Engineering

Rank	Firm	($ mil)
1	Atkins	162.36
2	HNTB Corp.	121.53
3	Reynolds, Smith and Hills Inc.	80.80
4	AECOM	74.14
5	Stantec	25.39
6	Jones Edmunds & Associates Inc.	23.48
7	Parsons Brinckerhoff	19.38
8	STV	19.36
9	Zachry Holdings Inc.	18.80
10	CPH Inc.	18.56
11	WK Dickson & Co. Inc.	17.20
12	McKim & Creed Inc.	17.10
13	Kisinger Campo & Associates Corp.	16.29
14	Dewberry	15.00
15	Hatch Mott MacDonald	14.84
16	Gannett Fleming Inc.	14.14
17	H.W. Lochner Inc	12.59
18	DRMP Inc.	12.22
19	Mulkey Engineers & Consultants	11.55
20	KCI Technologies Inc.	11.23

MEP Engineering

Rank	Firm	($ mil)
1	Zachry Holdings Inc.	57.47
2	AECOM	50.62
3	TLC Engineering for Architecture Inc.	25.16
4	Affiliated Engineers Inc.	19.49
5	Pond & Co. Inc.	13.89
6	O'Neal Inc.	13.70
7	exp	10.80
8	yska Hennessy Group	8.07
9	Gresham, Smith and Partners	7.24
10	Dewberry	6.97
11	Morrison Hershfield	6.90
12	Burns & McDonnell	6.75
13	Reynolds, Smith and Hills Inc.	6.20
14	Merrick & Co.	5.70
15	BRPH	4.82
16	Stevens & Wilkinson	3.21
17	MWH Global	2.39
18	RLF	1.87
19	Atkins	1.59
20	Little	1.16

Health Care

Rank	Firm	($ mil)
1	Gresham, Smith and Partners	24.38
2	Perkins+Will	18.23
3	TLC Engineering for Architecture Inc.	11.56
4	CDH Partners Inc.	8.64
5	HuntonBrady Architects	7.70
6	Dewberry	5.65
7	RLF	5.47
8	Affiliated Engineers Inc.	3.67
9	LS3P ASSOCIATES LTD.	3.57
10	Stantec	2.86
11	VOA Associates Incorporated	2.55
12	Perkins Eastman	2.46
13	Terracon Consultants Inc.	1.82
14	AECOM	1.54
15	Stevens & Wilkinson	1.31
16	ACAI Associates Inc.	1.04
17	Stewart	0.82
18	Mulkey Engineers & Consultants	0.65
19	Wakefield Beasley & Associates Architects	0.62
20	Morrison Hershfield	0.37

Sewerage/Solid Waste

Rank	Firm	($ mil)
1	MWH Global	12.47
2	AECOM	12.18
3	Geosyntec Consultants	12.17
4	Jones Edmunds & Associates Inc.	11.08
5	McKim & Creed Inc.	10.42
6	Woolpert Inc.	9.19
7	ARCADIS U.S.	7.51
8	WK Dickson & Co. Inc.	6.89
9	CPH Inc.	5.27
10	Atkins	5.09
11	Dewberry	4.90
12	Stantec	3.11
13	Hatch Mott MacDonald	3.85
14	Gresham, Smith and Partners	2.16
15	Terracon Consultants Inc.	2.10
16	Carollo Engineers Inc.	2.03
17	Greeley and Hansen	1.76
18	Keith and Schnars P.A.	1.00
19	Weston & Sampson	0.65
20	HNTB Corp.	0.45

Water Supply

Rank	Firm	($ mil)
1	AECOM	58.87
2	Atkins	19.81
3	ARCADIS U.S.	18.76
4	MWH Global	10.40
5	Dewberry	8.16
6	McKim & Creed Inc.	7.19
7	Carollo Engineers Inc.	6.44
8	Jones Edmunds & Associates Inc.	5.55
9	CPH Inc.	5.27
10	Parsons Brinckerhoff	5.23
11	WK Dickson & Co. Inc.	4.10
12	Stantec	3.88
13	Geosyntec Consultants	3.17
14	Gannett Fleming Inc.	3.13
15	Keith and Schnars P.A.	2.00
16	Terracon Consultants Inc.	1.52
17	HNTB Corp.	1.08
18	Hatch Mott MacDonald	0.89
19	Gresham, Smith and Partners	0.80
20	Goodwyn, Mills & Cawood Inc.	0.77

Hazardous Waste

Rank	Firm	($ mil)
1	ARCADIS U.S.	93.17
2	AECOM	58.77
3	Geosyntec Consultants	14.06
4	GLE Associates Inc.	4.57
5	Gannett Fleming Inc.	3.38
6	GEL Engineering LLC	1.20
7	Jones Edmunds & Associates Inc.	0.46
8	Hatch Mott MacDonald	0.08
9	Ayres Associates	0.01

Commercial

Rank	Firm	($ mil)
1	Gensler	16.63
2	LS3P ASSOCIATES LTD.	9.70
3	Reynolds, Smith and Hills Inc.	8.60
4	BRPH	6.85
5	Perkins+Will	6.04
6	HuntonBrady Architects	3.20
7	Syska Hennessy Group	2.75
8	Terracon Consultants Inc.	2.60
9	Stevens & Wilkinson	2.58
10	TLC Engineering for Architecture Inc.	2.46
11	Smallwood, Reynolds, Stewart, Stewart & Assoc. Inc.	2.20
12	Pond & Co. Inc.	2.00
13	Wakefield Beasley & Associates Architects	1.96
14	AECOM	1.79
15	Atkins	1.74
16	Gresham, Smith and Partners	1.67
17	Zyscovich Architects	1.42
18	Stewart	1.27
19	Stantec	0.76
20	VOA Associates Incorporated	0.68

Master-Planned Development/Site Infrastructure

Rank	Firm	($ mil)
1	CPH Inc.	10.53
2	Stantec	4.13
3	ESP Associates P.A.	2.85
4	DRMP Inc.	1.39
5	Stewart	1.18
6	Merrick & Co.	1.04
7	Keith and Schnars P.A.	1.00
8	Weston & Sampson	0.65
9	GRAEF	0.52
10	Atkins	0.45
11	GALLO HERBERT ARCHITECTS	0.20
12	Affiliated Engineers Inc.	0.13
13	Ayres Associates	0.13
14	WK Dickson & Co. Inc.	0.13
15	GLE Associates Inc.	0.10
16	Goodwyn, Mills & Cawood Inc.	0.09
17	Florida Engineering Group Inc.	0.09
18	Perkins+Will	0.09
19	The Beck Group	0.05
20	Cooper Carry Inc.	0.03

Industrial Process

Rank	Firm	($ mil)
1	O'Neal Inc.	18.70
2	Hargrove Engineers + Constructors	15.75
3	Affiliated Engineers Inc.	4.34
4	Geosyntec Consultants	3.59
5	Terracon Consultants Inc.	1.98
6	GEL Engineering LLC	1.50
7	Gresham, Smith and Partners	1.04
8	Atkins	0.64
9	Zachry Holdings Inc.	0.53
10	Stantec	0.49

Retail

Rank	Firm	($ mil)
1	Gensler	10.33
2	Terracon Consultants Inc.	7.74
3	Atkins	2.59
4	Wakefield Beasley & Associates Architects	2.17
5	Smallwood, Reynolds, Stewart, Stewart & Assoc. Inc.	2.03
6	api(+)	1.69
7	CASCO Diversified Corporation	1.50
8	MulvannyG2 Architecture	1.23
9	CPH Inc.	1.05
10	LS3P ASSOCIATES LTD.	1.02
11	Stantec	0.87
12	DRMP Inc.	0.63
13	Stewart	0.61
14	Zyscovich Architects	0.55
15	AECOM	0.49
16	Ramey Kemp & Associates Inc.	0.49
17	The Beck Group	0.46
18	ESP Associates P.A.	0.45
19	TLC Engineering for Architecture Inc.	0.43
20	Florida Engineering Group Inc.	0.33

Government/Public Service

Rank	Firm	($ mil)
1	Reynolds, Smith and Hills Inc.	22.30
2	Pond & Co. Inc.	13.99
3	Merrick & Co.	11.10
4	AECOM	10.56
5	BRPH	8.28
6	Atkins	7.03
7	VOA Associates Incorporated	4.61
8	HNTB Corp.	4.00
9	exp	2.80
10	Jones Edmunds & Associates Inc.	2.73
11	The Beck Group	2.72
12	Affiliated Engineers Inc.	2.71
13	Perkins+Will	2.18
14	Terracon Consultants Inc.	2.12
15	Lord, Aeck & Sargent	2.11
16	KCI Technologies Inc.	2.00
17	Burns & McDonnell	1.89
18	ACAI Associates Inc.	1.75
19	DLR Group	1.50
20	LS3P ASSOCIATES LTD.	1.25

R&D Facilities

Rank	Firm	($ mil)
1	Lord, Aeck & Sargent	6.89
2	Cooper Carry Inc.	5.12
3	Affiliated Engineers Inc.	4.43
4	O'Neal Inc.	2.00
5	Merrick & Co.	1.92
6	Gensler	0.62
7	TLC Engineering for Architecture Inc.	0.25
8	Stantec	0.25
9	Terracon Consultants Inc.	0.17
10	Ramey Kemp & Associates Inc.	0.01

Multi-Unit Residential

Rank	Firm	($ mil)
1	Niles Bolton Associates	8.51
2	Stantec	5.09
3	Terracon Consultants Inc.	2.86
4	Smallwood, Reynolds, Stewart, Stewart & Assoc. Inc.	1.67
5	Lord, Aeck & Sargent	1.55
6	Cooper Carry Inc.	1.33
7	Zyscovich Architects	1.32
8	TLC Engineering for Architecture Inc.	1.19
9	Thornton Tomasetti	1.01
10	KCI Technologies Inc.	0.77
11	ESP Associates P.A.	0.68
12	LS3P ASSOCIATES LTD.	0.52
13	GLE Associates Inc.	0.48
14	Perkins Eastman	0.38
15	Morrison Hershfield	0.37
16	CDH Partners Inc.	0.25
17	Stevens & Wilkinson	0.21
18	Stewart	0.20
19	Florida Engineering Group Inc.	0.18
20	PFVS Architecture (dba Raintree Architecture Inc.)	0.15