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 2015 Top Design Firms Sectors:
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West Virginia

Rank	Firm	$ Mil.
1	The Thrasher Group Inc.	47.00
2	Cardno	12.22
3	GAI Consultants Inc.	11.99
4	Stantec	9.37
5	Michael Baker international	7.30
6	Dawood Engineering Inc.	6.95
7	Hatch Mott MacDonald	4.30
8	Civil & Environmental Consultants Inc.	4.00
9	HNTB Corp.	3.92
10	Mead & Hunt Inc.	3.90
11	ARCADIS/RTKL/Callison	3.90
12	Rummel, Klepper & Kahl LLP	3.50
13	AECOM	2.49
14	Modjeski and Masters Inc.	1.65
15	WSP | Parsons Brinckerhoff	1.38

Green Design

Rank	Firm	$ Mil.
1	SmithGroupJJR	43.32
2	Shalom Baranes Associates	27.46
3	Page	25.60
4	Gensler	25.02
5	Ayers Saint Gross	21.22
6	Stantec	20.13
7	WSP | Parsons Brinckerhoff	20.00
8	EwingCole	16.67
9	WDG Architecture	13.22
10	Clark Nexsen	11.92
11	Grimm + Parker Architects	9.93
12	GWWO Inc./Architects	8.76
13	Crabtree, Rohrbaugh & Associates	8.60
14	Michael Baker international	8.53
15	Cooper Carry Inc.	8.52
16	Hatch Mott MacDonald	6.69
17	Dewberry	6.16
18	Design Collective Inc.	6.00
19	Affiliated Engineers Inc.	4.87
20	Arup	4.50
21	Perkins Eastman	4.04
22	Allen & Shariff Engineering LLC	4.00
23	KCI Technologies Inc.	3.50
24	Gannett Fleming	3.30
25	FXFOWLE Architects	2.28

MEP Engineering

Rank	Firm	$ Mil.
1	AECOM	41.55
2	STV	15.60
3	WSP | Parsons Brinckerhoff	15.02
4	Stantec	13.35
5	Whitman, Requardt & Associates LLP	13.23
6	Affiliated Engineers Inc.	12.97
7	EwingCole	12.50
8	Allen & Shariff Engineering LLC	10.53
9	SmithGroupJJR	10.16
10	Dewberry	6.85
11	Clark Nexsen	6.17
12	NELSON	6.06
13	Greeley and Hansen	4.21
14	KCI Technologies Inc.	3.80
15	Michael Baker international	3.57
16	Loring Consulting Engineers Inc.	3.10
17	GAI Consultants Inc.	3.09
18	Highland Associates Ltd.	2.05
19	Baskervill	1.95
20	Arup	1.80

Civil Engineering

Rank	Firm	$ Mil.
1	AECOM	399.47
2	Rummel, Klepper & Kahl LLP	118.00
3	Dewberry	92.50
4	Michael Baker international	77.77
5	WSP | Parsons Brinckerhoff	73.29
6	Gannett Fleming	57.23
7	HNTB Corp.	49.18
8	STV	47.93
9	McCormick Taylor Inc.	40.70
10	Kimley-Horn	40.35
11	Hatch Mott MacDonald	37.82
12	KCI Technologies Inc.	34.20
13	Whitman, Requardt & Associates LLP	30.42
14	Civil & Environmental Consultants Inc.	30.13
15	Timmons Group	26.61
16	Greeley and Hansen	24.29
17	Stantec	24.18
18	Herbert, Rowland & Grubic Inc.	18.72
19	GAI Consultants Inc.	15.77
20	Soltesz	15.00

Interior Design

Rank	Firm	$ Mil.
1	Gensler	29.29
2	Perkins+Will	7.74
3	INTEC Group Inc.	7.26
4	Page	4.64
5	Stantec	4.27
6	SmithGroupJJR	4.23
7	NELSON	4.21
8	VOA Associates Inc.	4.02
9	WDG Architecture	3.58
10	Cooper Carry Inc.	3.26
11	Baskervill	2.87
12	EwingCole	2.40
13	Francis Cauffman	2.24
14	Perkins Eastman	2.19
15	FKP Architects Inc.	1.80