State Clients
- Colorado Division of Reclamation, Mining, and Safety
- Colorado Department of Corrections
- Colorado Division of Water Resources
- Colorado Parks and Wildlife
- Wyoming Water Development
Municipal Clients
- Aurora Water
- Board of Water Works of Pueblo, Colorado
- Bowles Metro District
- Castle Pines Metro District
- Castle Pines North Metro District
- Centennial Water and Sanitation District
- Central City
- City of Blackhawk
- City and County of Broomfield
- City of Aspen
- City of Aurora
- City of Cripple Creek
- City of Greeley
- City of Lafayette
- City of Longmont
- City of Montrose
- City of Pueblo
- City of Thornton
- City of Westminster
- Colorado Springs Utilities
- Denver Water Board
- Eagle Shadow Metro District
- Metro Wastewater Reclamation District
- Montrose County
- St. Vrain Valley School District
- Summit County
- Triview Metropolitan District
- Town of Berthoud
- Town of Castle Rock
- Town of Cripple Creek
- Town of Erie
- Town of Estes Park
- Town of LaSalle
Contractor Clients
- Aecon Constructors
- Atkinson Construction
- Flatirons Construction Company
- Frontier Kemper
- Hall-Irwin Construction
- JF Shea
- Kirkland Construction
- Lillard and Clark Construction
- Magnus Pacific
- Mining and Environmental Services
- Obayashi Corporation
- S.J. Louis Construction
- Shotcrete Plus Montana
- Skanska USA
- W.L. Hailey
- W.L.H. Construction
- Western Summit
Attorney Clients
- Berg Hill Greenleaf and Ruscitti
- Brownstein Hyatt Farber Schreck
- Carlson Hammond and Paddock
- Carney Badley and Spellman
- Feldman Nagel and Associates
- Felt Monson and Culicia
- Grimshaw and Harring
- Hall and Evans
- Hamre Rodriguez Qstrander & Dingess, PC
- Kilpatrick Townsend and Stockton
- Little Bulman Medeiros and Whitney
- Lyons Gaddis Kahn Hall Jeffers Dworak Grant
- Marvin Chorzempa and Larson (Donovan Hatem)
- Petros and White
- Spence Law Firm
- The Patrick Law Firm
- Watt Tieder Hoffar and Fitzgerald
- White and Jankowski
Engineer Clients
- Carollo Engineers
- CDM Smith
- CH2M Hill (Jacobs)
- Dewberry
- DiNatale Water Consultants
- Hanson-Rodriguez Engineers
- HDR
- Mott MacDonald
- Leonard Rice Engineers
- Maunsell Consultants Asia Ltd.
- MWH (Stantec)
- Navarro Research & Engineering
- RJH Consultants
- Shannon and Wilson
- Tetra Tech
- Wenk
- Weston Solutions
Industrial Clients
- Dahgren Industrial
- Glanbia Foods
- Starr Corporation
International Clients
- Hanson-Rodriguez Engineers
- Hatch Mott MacDonald
- Maunsell Consultants Asia Ltd.
Water Clients
- Allen Ditch Company
- Arkansas Groundwater Users Association
- Baseline Land and Reservoir Company
- Beckwith Ditch and Reservoir Company
- Bonus Ditch Company
- Boulder and Left Hand Irrigation Company
- Boulder and White Rock Ditch and Reservoir Company
- Box Elder Ditch Company
- Brighton Ditch Company
- Cannon Land Company and Cannon Water Company
- Center of Colorado Water Conservancy District
- Central Colorado Water Conservancy District
- Clover Basin Irrigation Company
- Clover Basin Irrigation Company
- Colorado Agricultural Ditch Company
- Consolidated Home Supply Ditch and Reservoir Company
- Consolidated Mutual Water Company
- Contra Costa Water District
- Denio and Taylor Mill Ditch Company
- East Lake Water Company
- Farmers Ditch Company
- Farmers’ High Line Canal and Reservoir Company
- Greeley and Loveland Irrigation Company
- Harry Lateral Ditch Company
- High Line Canal Company
- Highland Ditch Company
- Holland Ditch Company
- Ide and Starbird Ditch Company
- James Ditch
- Kershaw Ditch Company
- Lake McIntosh Reservoir Company
- Left Hand Ditch Company
- Left Hand Water District
- Leggett Ditch and Reservoir Company
- Lower Arkansas Water Conservancy District
- Lower Clear Creek Ditch Company
- Lower South Platte Water Conservancy District
- Lupton Bottom Ditch Company
- Mandalay Irrigation Company
- Manhart Ditch Company
- McKay Lateral Ditch Company
- Middle Arkansas Groundwater Users Association
- Morgan County Quality Water District
- New Brantner Ditch Company
- New Cache la Poudre Irrigating Company
- New Coal Ridge Ditch Company
- New Consolidated Lower Boulder Ditch Company
- Niwot Ditch Company
- North Boulder Farmers Ditch Company
- Oligarchy Irrigation Company
- Platteville Irrigating and Milling Company
- Pleasant Valley Reservoir, Fish and Ditch Company
- Plumb Irrigation Company
- Rio Grande Water Users Association
- Rough and Ready Irrigating Ditch Company
- Rural Ditch Company
- Ryan Gulch Reservoir Company
- San Luis Valley Irrigation District
- Santa Maria Reservoir Company
- Signal Ditch Company
- Smith and Emmons Ditch Company
- South Flat Ditch Company
- South Side Irrigation and Reservoir Company
- Southwest Water Company
- St. Vrain Fish and Reservoir Company
- St. Vrain Left Hand Water Conservancy District
- Supply Irrigating Ditch Company
- Terrace Irrigation Company
- The Anderson Ditch Company
- The Union Reservoir Company
- Tunnel Water Company
- Union Reservoir Company
- Upper Gunnison Water Conservancy District
- Upper Platte and Beaver Canal Company
- Water Supply LLC
- Water User’s Association of District 6
- Weldon Valley Ditch Company
- Woman Creek Reservoir Authority
- Yuma County Water Authority
Mining Clients
- Aggregate Industries
- Albert Frei and Sons
- Asphalt Specialties
- Boral Aggregates
- Fremont Paving and Redi-Mix
- Hecla Mining Company
- Lehigh Hanson
- L.G. Everist
- Martin Marietta
- Midway Aggregates
- Pete Lien and Son
- Pioneer Sand Company
- Ready Mixed Concrete Company
- Southwest Ready-Mix
- Suburban Reddi-Mix
- Valco
Power Clients
- Enel Green Power
- Idaho Falls Power
- Tacoma Power
- TKO Power