ENR East Top Design Firms By Market Sector 2026

May 2026

The ENR East Top Design Firms list, 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 Design Firms:
View Complete List of Main Rankings

Related Article:
Designers Pin Growth on Public Sector and Data Center Markets

Click below for earlier editions:
2025 |

Click here for archived ENR New York and MidAtlantic top lists.

 

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ENR East Top Design Firms By Market Sector 2026

 

Connecticut

RANK	FIRM	$ MIL.
1	AECOM	67.15
2	WSP USA	52.03
3	Fuss & O’Neill Inc.	39.81
4	VHB	38.14
5	AI Engineers Inc.	31.60
6	HNTB Corp.	27.59
7	TRC Cos.	27.26
8	STV	23.30
9	CHA Consulting Inc.	22.90
10	Arcadis North America	21.39

 

Delaware

RANK	FIRM	$ MIL.
1	AECOM	36.35
2	Johnson, Mirmiran & Thompson Inc. (JMT)	18.51
3	Becker Morgan Group	17.96
4	Whitman, Requardt & Associates LLP (WRA)	17.06
5	Kleinfelder Inc.	14.74
6	Greenman-Pedersen	12.55
7	Rummel, Klepper and Kahl LLP	10.49
8	WSP USA	10.00
9	Stantec	9.09
10	HDR	8.06

 

Washington D.C.

RANK	FIRM	$ MIL.
1	AECOM	106.83
2	WSP USA	98.48
3	Gensler	54.50
4	CannonDesign	47.40
5	GFT	42.50
6	DLR Group	42.20
7	VHB	36.32
8	Quinn Evans	28.46
9	Stantec	27.76
10	HNTB Corp.	23.08

 

Maine

RANK	FIRM	$ MIL.
1	WSP USA	59.80
2	TRC Cos.	32.27
3	Stantec	30.09
4	VHB	22.26
5	Woodard & Curran	17.85
6	Wright-Pierce	14.01
7	HNTB Corp.	13.62
8	Electrical Consultants Inc.	13.40
9	AECOM	9.77
10	Thornton Tomasetti	6.68

 

Maryland

RANK	FIRM	$ MIL.
1	AECOM	171.30
2	Rummel, Klepper and Kahl LLP	142.96
3	Johnson, Mirmiran & Thompson Inc. (JMT)	132.35
4	WSP USA	102.95
5	Whitman, Requardt & Associates LLP (WRA)	86.22
6	GFT	75.40
7	HNTB Corp.	42.64
8	Kleinfelder Inc.	42.54
9	STV	40.70
10	HDR	38.84

 

Massachusetts

RANK	FIRM	$ MIL.
1	AECOM	179.62
2	WSP USA	133.46
3	Stantec	111.03
4	HNTB Corp.	110.83
5	VHB	109.21
6	Woodard & Curran	78.32
7	Arcadis North America	68.40
8	GZA	56.63
9	Gensler	55.16
10	HDR	53.51

 

New Hampshire

RANK	FIRM	$ MIL.
1	WSP USA	16.27
2	VHB	15.60
3	Wright-Pierce	14.45
4	GZA	14.26
5	HDR	12.43
6	IMEG	12.20
7	Stantec	9.36
8	TRC Cos.	8.63
9	AECOM	7.74
10	Woodard & Curran	6.24

 

New Jersey

RANK	FIRM	$ MIL.
1	WSP USA	178.10
2	Parsons	138.90
3	Colliers Engineering & Design	112.67
4	AECOM	111.42
5	HNTB Corp.	106.13
6	Langan	100.73
7	TRC Cos.	100.07
8	Burns & McDonnell	92.46
9	Michael Baker International	84.32
10	Greenman-Pedersen	82.35

 

New York

RANK	FIRM	$ MIL.
1	WSP USA	522.65
2	AECOM	500.36
3	Arcadis North America	281.57
4	STV	241.70
5	Gensler	213.61
6	TRC Cos.	147.18
7	Langan	143.62
8	Stantec	142.38
9	GFT	140.20
10	HDR	135.94

 

Pennsylvania

RANK	FIRM	$ MIL.
1	GFT	209.58
2	AECOM	190.06
3	Michael Baker International	128.02
4	Johnson, Mirmiran & Thompson Inc. (JMT)	108.38
5	WSP USA	106.27
6	Stantec	100.71
7	HNTB Corp.	84.16
8	STV	83.50
9	ARM Group Enterprises	76.61
10	Burns & McDonnell	76.04

 

Rhode Island

RANK	FIRM	$ MIL.
1	VHB	40.52
2	AECOM	33.25
3	Burns & McDonnell	25.22
4	WSP USA	18.01
5	GZA	17.66
6	Stantec	15.72
7	CHA Consulting Inc.	11.34
8	Woodard & Curran	8.98
9	Wright-Pierce	8.91
10	Michael Baker International	8.34

 

Vermont

RANK	FIRM	$ MIL.
1	VHB	21.14
2	Stantec	12.16
3	Greenman-Pedersen	7.52
4	Parsons	6.20
5	Bowman Consulting Group Ltd. (Bowman)	5.97
6	WSP USA	4.37
7	HNTB Corp.	3.85
8	Fuss & O’Neill Inc.	3.62
9	Wright-Pierce	3.40
10	TRC Cos.	3.32

 

Virginia

RANK	FIRM	$ MIL.
1	Burns & McDonnell	232.68
2	Kimley-Horn	223.36
3	AECOM	213.78
4	Dewberry	169.87
5	WSP USA	134.95
6	Johnson, Mirmiran & Thompson Inc. (JMT)	129.87
7	Rummel, Klepper and Kahl LLP	128.77
8	Stantec	110.03
9	ECS Group of Companies	97.92
10	Michael Baker International	97.87

 

West Virginia

RANK	FIRM	$ MIL.
1	Civil & Environmental Consultants Inc.	38.90
2	TRC Cos.	27.21
3	HNTB Corp.	26.63
4	Greenman-Pedersen	16.95
5	Burns & McDonnell	16.15
6	AECOM	13.83
7	Terracon	13.60
8	Stantec	13.58
9	Michael Baker International	11.51
10	Whitman, Requardt & Associates LLP (WRA)	11.28

 

New England

RANK	FIRM	$ MIL.
1	AECOM	300.12
2	WSP USA	283.94
3	VHB	246.87
4	Stantec	199.01
5	HNTB Corporation	157.67
6	TRC Companies, Inc.	122.78
7	Woodard & Curran	121.89
8	GZA	115.96
9	Burns & McDonnell	95.03
10	Arcadis North America	93.92

 

New York/New Jersey

RANK	FIRM	$ MIL.
1	WSP USA	700.75
2	AECOM	611.78
3	Arcadis North America	357.28
4	STV	279.30
5	Parsons	250.80
6	TRC Companies, Inc.	247.25
7	Langan	244.35
8	Gensler	243.71
9	HNTB Corporation	229.21
10	Colliers Engineering & Design	228.97

 

MidAtlantic

RANK	FIRM	$ MIL.
1	AECOM	732.15
2	WSP USA	457.20
3	Johnson, Mirmiran & Thompson, Inc. (JMT)	394.82
4	GFT	377.28
5	Burns & McDonnell	372.20
6	Kimley-Horn	326.10
7	Rummel, Klepper and Kahl, LLP	321.63
8	Stantec	298.34
9	Michael Baker International	265.33
10	Whitman, Requardt & Associates, LLP (WRA)	234.25

 

Education

RANK	FIRM	$ MIL.
1	GFT	52.30
2	Salas O’Brien	39.87
3	AECOM	32.58
4	BRAVO Group	31.34
5	WSP USA	29.40
6	H2M architects + engineers	28.50
7	SmithGroup	27.58
8	Langan	23.23
9	CHA Consulting Inc.	22.47
10	DLR Group	22.30

 

Entertainment

RANK	FIRM	$ MIL.
1	Langan	10.72
2	JCJ Architecture	7.36
3	Kimley-Horn	5.33
4	IMEG	4.30
5	Gensler	3.59
6	GZA	3.50
7	ECS Group of Companies	1.81
8	WSP USA	1.63
9	French & Parrello Associates (FPA)	0.76
10	H2M architects + engineers	0.70

 

Government/Public Building

RANK	FIRM	$ MIL.
1	AECOM	82.00
2	WSP USA	71.94
3	Stantec	50.40
4	Michael Baker International	46.67
5	Salas O’Brien	36.27
6	Whitman, Requardt & Associates LLP (WRA)	32.30
7	HDR	31.37
8	GFT	30.10
9	Burns & McDonnell	28.92
10	CHA Consulting Inc.	24.02