The ENR Mountain States Colorado & Wyoming 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 List:
Colorado/Wyoming Top Design Firms by Market Specialty

Other information on the Mountain States Top Lists:
Intermountain Top Design Firms Ranking
Intermountain Top Design Firms By Specialty

Click below for earlier editions:
2014 | 2013 | 2012 | 2011 | 2010

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Colorado/Wyoming Top Design Firms

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Rank 2015/2014	Company / Location / Website/ Top Officer	Largest Project to Break Ground its Location Project Value ($ Mil.)	Market sectors by % of revenue**
1/1	AECOM* Denver aecom.com David Ellerbroek, Senior Vice President			Colorado Flood Response and Recovery Various Sites in Colorado 100.00	36 Transportation 16 General Building 14 Water Supply
2/-	Merrick & Co.* Greenwood Village, Colo. merrick.com Dave Huelskamp, President & CEO	Not Provided	53 General Building 26 Power 17 Master Plan/Site
3/3	Burns & McDonnell Centennial, Colo. burnsmcd.com Mark Lichtwardt, Vice President, General Manager	Not Provided	40 Power 22 Industrial Process 16 Manufacturing
4/2	MWH Global Inc. Broomfield, Colo. mwhglobal.com Alan Krause, CEO	Drake Water Reclamation Facility South Process Train Nutrient Removal and Replacement Project Fort Collins, Colo. 7.68	70 Water Supply 17 Sewerage/Solid Waste 13 Power
5/16	Stantec Denver stantec.com Curt Chapman, Vice President	North Metro Rail Line Design-Build Project, Phase I Denver 343.00	48 Transportation 44 General Building 4 Petroleum
6/5	WSP Parsons Brinckerhoff Dallas wspgroup.com/usa; pbworld.com Frank Medina, Regional Business Manager	Not Provided	77 Transportation 18 General Building 2 Industrial Process
7/6	Martin/Martin Inc. Lakewood, Colo. martinmartin.com Gary Thomas, President	CU Boulder Folsom Field Athletic Complex Boulder, Colo. 156.00	80 General Building 7 Transportation 4 Manufacturing
8/8	Terracon Consultants Inc. Olathe, Kan. terracon.com Swaminathan Srinivasan, Executive Vice President, Western Operating Group	Microsoft CYS04 Data Center Cheyenne, Wyo. 274.00	58 General Building 13 Petroleum 6 Water Supply
9/7	Davis Partnership Architects Denver DavisPartnership.com Brit Probst, President, Principal	CoBank Center Greenwood Village, Colo. Not Provided	100 General Building
10/12	CTL Thompson Inc. Denver ctlt.com Ron McOmber, Chairman & CEO	1601 Wewatta Denver 180.00	66 General Building 26 Master Plan/Site 3 Transportation
11/-	Halker Consulting LLC Denver halker.com Matt Halker, CEO	Wells Ranch Central Processing Facility Greeley, Colo. 80.00	100 Petroleum
12/13	OZ Architecture Denver ozarch.com Jim Bershof, President	Strata Vail Vail, Colo. 100.00	100 General Building
13/15	ARCADIS US/RTKL/Callison Highlands Ranch, Colo. arcadis-us.com John Jastrem, CEO	Not Provided	81 Hazardous Waste 10 Sewerage/Solid Waste 9 Water Supply
14/14	Carollo Engineers Inc. Broomfield, Colo. carollo.com Russ Wachter, Client Service Director	Aurora Water Wemlinger Water Purification Facility Improvement Aurora, Colo. 20.90	74 Sewerage/Solid Waste 26 Water Supply
15/9	Atkins North America* Denver atkinsglobal.com/en-GB/locations/north-america Joe Boyer, CEO	Not Provided	92 Transportation 6 Power 1 Water Supply
16/26	Stanley Consultants Centennial, Colo. stanleyconsultants.com Todd Nicoll, Vice President	Not Provided	96 Power 3 Master Plan/Site 1 Water Supply
17/17	RNL Denver rnldesign.com Josh Gould, Chairman & CEO	First Bank Headquarters Lakewood, Colo. 25.00	69 General Building 21 Other 10 Master Plan/Site
18/18	H+L Architecture Denver hlarch.com Scott Kuehn, President	Cherry Creek High School Renovation/Addition Greenwood Village, Colo. 16.50	100 General Building
19/-	Short Elliott Hendrickson Inc. (SEH)* St. Paul, Minn. sehinc.com John Simmer, Vice President	Aurora Westerly Creek Montview Aurora, Colo. 0.53	86 Transportation 13 General Building 1 Sewerage/Solid Waste
20/25	Farnsworth Group Inc. Greenwood Village, Colo. f-w.com Brian R. Myers, Principal	Foothills Mall Fort Collins, Colo. 220.00	52 General Building 16 Transportation 12 Sewerage/Solid Waste
21/11	Gensler Denver gensler.com Andy Cohen, Co-CEO	Terumo BCT Lakewood, Colo. Not Provided	87 General Building 13 Transportation
22/40	Zachry Group Denver zachrygroup.com Jerry Burke, President	Holly Frontier Cheyenne, Wyo. 27.47	86 Petroleum 13 Power 1 Transportation
23/28	Cardno* Lone Tree, Colo. cardno.com Paul Gardiner, President, Americas Region	Not Provided	40 General Building 20 Transportation 20 Petroleum
24/20	Wilson & Co., Engineers & Architects Denver wilsonco.com James Brady, COO	S.H. 92 Stengel's Hill Design-Build Near Hotchkiss, Colo. 12.50	77 Transportation 8 Petroleum 7 General Building
25/10	Felsburg Holt & Ullevig Centennial, Colo. fhueng.com Dean P. Bradley, President	U.S. 6 Bridges Design-Build Denver 80.00	100 Transportation
26/30	MKK Consulting Engineers Inc. Greenwood Village, Colo. mkkeng.com Kevin Pope, President & CEO	CoBank Office Building Greenwood Village, Colo. 29.00	89 General Building 10 Telecommunications 1 Transportation
27/27	MOA ARCHITECTURE Denver moaarch.com Barry L. Koury, President	CAPS/Roosevelt High School Casper, Wyo. 36.70	100 General Building
28/-	JVA Inc.* Boulder, Colo. jvajva.com Thomas S. Soell, President	11th and Pearl Mixed-Use Development Boulder, Colo. 46.00	69 General Building 11 Master Plan/Site 9 Sewerage/Solid Waste
29/23	SWCA Environmental Consultants Broomfield, Colo. swca.com Joseph J. Fluder III, Vice President of Operations	Not Provided	66 Petroleum 21 Power 5 Telecommunications
30/29	KL&A Inc. Structural Engineers and Builders Golden, Colo. kla.com Gregory R. Kingsley, President & CEO	Colorado State University Aggie Village Fort Collins, Colo. 87.50	100 General Building
31/48	Michael Baker International Anchorage mbakerintl.com Jeff Baker, Senior Vice President, Mountain Region Director	Boulder County Post-Flood Reconstruction Boulder County, Colo. 5.00	73 Transportation 18 Water Supply 7 Sewerage/Solid Waste
32/38	Dewberry Denver dewberry.com David C. Vidikan, Associate Vice President	Highline Transmission Main - Phase 1 Colorado Springs 5.94	70 Water Supply 27 Sewerage/Solid Waste 2 Other
32/41	Kimley-Horn Denver kimley-horn.com Scott Colvin, Regional Leader	Alexan Uptown/Trammel Crow Denver 83.00	65 General Building 22 Transportation 13 Master Plan/Site
34/35	CTA Architects Engineers Denver ctagroup.com Scott Wilson, President	Powell County School District No. 1 Powell, Wyo. 5.75	93 General Building 7 Other
35/-	DOWL Sheridan, Wyo. dowl.com Dayton Alsaker, Wyoming Regional Business Supervisor	Big Horn Regional Well No. 2 Water Supply Project Big Horn, Wyo. 6.00	100 General Building
36/-	Manhard Consulting Vernon HIlls, Ill. manhard.com Donald Manhard Jr., President	Not Provided	97 General Building 1 Transportation 1 Water Supply
37/37	DLR Group* Denver dlrgroup.com Tom O’Neil, Senior Principal, Regional Leader	Cheyenne Public Safety Center Cheyenne, Wyo. 20.00	100 General Building
38/33	Swanson Rink Inc. Denver swansonrink.com Gary Orazio, President	Cherry Creek Mall Expansion Denver Not Provided	53 Telecommunications 24 General Building 23 Transportation
39/24	Surveying And Mapping LLC (SAM) Lakewood, Colo. sam.biz Matt West, Vice President	Thunder Creek Gas Pipeline Gillette, Wyo. Not Provided	99 Petroleum 1 General Building
40/58	The Beck Group Denver beckgroup.com Doug Spuler, Director of Architecture, Denver Principal	1401 Lawrence Denver 69.00	100 General Building
41/43	RS&H Inc. Denver rsandh.com Christopher M. Greene, Vice President	Fort Morgan Municipal Airport New Runway R/L 14-32 Fort Morgan, Colo. 6.40	97 Transportation 3 General Building
42/64	Rowland+Broughton Architecture and Urban Design Aspen, Colo. rowlandbroughton.com Sarah Broughton, Principal	Gant Aspen, Colo. 3.70	86 General Building 14 Other
43/39	Ayres Associates Fort Collins, Colo. AyresAssociates.com James Schall, Vice President	Not Provided	69 Water Supply 16 Other 10 Transportation
44/36	Hatch Mott MacDonald Lakewood, Colo. hatchmott.com Richard P. Arber, Vice President	Not Provided	52 Transportation 25 Water Supply 21 Sewerage/Solid Waste
45/45	Mazzetti Denver mazzetti.com Kurt Messerli, COO	Not Provided	95 General Building 5 Telecommunications
46/-	EVstudio Denver evstudio.com Dean Dalvit, Principal	Commonwealth Heights Lone Tree, Colo. 40.00	100 General Building
47/46	4240 Architecture Inc. Denver 4240arch.com Louis Bieker, President	Aggie Village North - Colorado State University Fort Collins, Colo. 80.00	85 General Building 12 Master Plan/Site 2 Other
47/50	Intergroup Architects Denver igarch.com Ned White, CEO, Senior Principal	Denver Broncos Headquarters Englewood, Colo. 9.00	83 General Building 10 Manufacturing 7 Master Plan/Site
49/-	The Abo Group Inc. Lakewood, Colo. theabogroup.com Ronald Abo, President & CEO	Servicios de La Raza Office Renovation Denver 0.71	73 General Building 27 Transportation
50/55	Ninyo & Moore Geotechnical and Environmental Sciences Consultants San Diego ninyoandmoore.com Avram Ninyo, Principal Engineer	Colorado School of Mines Stadium & Athletic Center Golden, Colo. 20.00	49 General Building 28 Hazardous Waste 12 Transportation
51/51	CSNA Architects Colorado Springs csnaarchitects.com Gregory M. Friesen, Managing Partner	Broadmoor Hotel - West Renovation Colorado Springs 46.00	82 General Building 18 Manufacturing
52/53	M.E. GROUP Denver megroup.com Jeff Visnic, Principal & Vice President	Colorado VA Outpatient Clinic Colorado Springs 21.50	100 General Building
53/-	Morrison-Maierle Inc. Helena, Mont. m-m.net Robert J. Morrison, President	City of New Castle/Weston County New Castle, Wyo. 0.22	64 Transportation 25 Water Supply 6 Other
54/-	Bohannan Huston Inc. Englewood, Colo. bhinc.com Loretta Davis, Senior Vice President	Not Provided	65 Other 31 Transportation 2 Water Supply
55/66	Collins Engineers Inc. Denver collinsengr.com Glenn Gerschke, Division Manager	Not Provided	89 Transportation 10 General Building 1 Sewerage/Solid Waste
56/59	Logan Simpson Fort Collins, Colo. logansimpson.com Diane Simpson-Colebank, President & CEO	Mehaffey Park Loveland, Colo. 10.60	44 Other 27 General Building 16 Transportation
56/56	Van Tilburg, Banvard & Soderbergh Denver vtbs.com Steve Gardner, Senior Associate	Landmark Lofts II Boulder, Colo. 22.00	100 General Building
58/54	RMG - Rocky Mountain Group Colorado Springs rmgengineers.com John Clarke, President	Magnum Shooting Center Colorado Springs, 8.00	53 Master Plan/Site 35 General Building 9 Transportation
59/52	Pahl Architecture pc Denver pahlarch.com Robert G.H. Pahl, President	Arapahoe County Events Center Expansion Denver 6.93	100 General Building
60/60	Design Concepts CLA Inc. Lafayette, Colo. dcla.net Carol Henry, President & Principal	Arapahoe County Fairgrounds Phase I Site Improvements Aurora, Colo. 4.80	88 General Building 12 Other
61/62	Corey Electrical Engineering Inc. Englewood, Colo. coreyeng.com Anne Stilson Cope, President	DIA Concourse C West Expansion Denver 0.14	70 General Building 30 Transportation
62/-	Forsgren Associates Inc. Salt Lake City forsgren.com Rudd Conover, Regional Manager	Water System Improvements Wyoming 1.60	47 Water Supply 23 Sewerage/Solid Waste 18 General Building
63/24	Smith Seckman Reid Inc. Greenwood Village, Colo. ssr-inc.com Jeff Mandrell, Principal	Denver Health Medical Office Building Denver 36.00	95 General Building 5 Telecommunications
64/70	CASCO Diversified Corp. St. Louis cascocorp.com Daniel E. Cutter, President	Children's Learning Adventure Denver 2.30	100 General Building
65/67	AZTEC Engineering Group Inc. Phoenix aztec.us Robert L. Lemke, Jr., CEO	Not Provided	100 Transportation
66/-	Royal Engineering Inc. Provo, Utah royaleng.com Steven R. Griffiths, President	Colorado Springs Building B Colorado Springs 0.01	90 General Building 10 Other