| Company | Year established | Professional staff | Licensed engineers | Recent projects | Top Executive | |
| 1 | MSA Engineering Consultants 370 E. Windmill Lane, Ste. 100, Las Vegas 89123 896-1100 • MSA-LV.com |
1996 | 67 | 12 | Smith Center for the Performing Arts, Tropicana Entertainment, Clark County School District | David Melroy, president |
| 2 | Lochsa Engineering 6345 S. Jones Blvd., Ste. 100 Las Vegas 89118 365-9312 • Lochsa.com |
1995 | 63 | 17 | Harrah’s RDE/LINQ, Wetlands Nature Park and Visitor’s Center, UNLV Mendenhall Center | Mark Hedge, principal |
| 3 | JBA Consulting Engineers 5155 W. Patrick Lane Ste. 100 Las Vegas 89118 362-9200 • JBACE.com |
1966 | 51 | 15 | McCarran Terminal 3, Las Vegas City Hall, Clark County Detention Center renovation | Dwayne Miller, CEO |
| 4 | GeoTek 6835 Escondido St. Las Vegas 89119 897-1424 • GeoTekUSA.com |
1997 | 50 | 9 | North Las Vegas City Hall, Mendenhall Recreation Center on the UNLV Campus, McCarran Airport Satellite C | Ryne Stoker, president |
| 5 | Atkins 2270 Corporate Circle Ste. 100 Henderson 89074 263-7275 • AtkinsGlobal.com |
1987 | 46 | 36 | U.S. 95 Summerlin HOV Flyover, Oakey Meadows Storm Drain, Northern Clark County 215 Beltway Construction Management Services | Charles Kircher, vice president |
| 6 | G.C. Wallace 1555 S. Rainbow Blvd. Las Vegas 89146 804-2000 • GCWallace.com |
1969 | 41 | 33 | McCarran Terminal 3 roadways & directional signage, Muddy River Riverine Enhancements, Collection System Capacity Addition/Manhole and pipe rehabilitation | James Duddlesten, president, CEO |
| 7 | Converse Consultants 731 Pilot Road Ste. H Las Vegas 89119 269-8336 • ConverseConsultants.com |
1969 | 37 | 5 | Duck Creek, Flamingo Wash, Arroyo Grande Park & Trails | Jim Werle, president, chief geologist |
| 8 | Black & Veatch Corp. 4040 S. Easterm Ave. Ste. 330 Las Vegas 89119 732-0448 • BV.com |
1983 | 28 | 13 | Not available | Dana Reel, SVP |
| 9 | Harris Consulting Engineers 6630 Surrey St. Ste. 100 Las Vegas 89119 269-1575 • HarrisEngineers.com |
1983 | 23 | 7 | Veterans Affairs for America CPAC Office, CSN Charleston Campus Bldg A HVAC Retrofit, Windmill Library | Tom Harris III, president |
| 10 | Stanely Consultants 5820 S. Eastern Ave. Ste. 200 Las Vegas 89119 369-9396 • StanleyConsultants.com |
1993 | 20 | 8 | Rancho Drive improvements, Windmill Wash Detention Basin, Cornerstone Lake Park | Dan Bender, office manager |
| 11 | Slater Hanifan Group 5740 S. Arville St. Ste. 216 Las Vegas 89118 284-5300 • SHG-Inc.com |
2003 | 19 | 16 | Tropicana Ave., Kyle Canyon Master Plan, Coyote Springs | Kenneth Hanifan, president |
| 12 | Kimley-Horn and Associates 2080 E. Flamingo Road Ste. 210 Las Vegas 89119 734-5666 • Kimley-Horn.com |
1991 | 17 | 11 | I-15 South design build, Symphony Park, Union Village | Kenneth Ackeret, principal |
| 13 | Ninyo & Moore 6700 Paradise Road Ste. E Las Vegas 89119 433-0330 • NinyoAndMoore.com |
1996 | 16 | 7 | Wetlands Park Visitor Center, Crescent Dunes Solar Energy Project, North 5th St. improvements | Bruce Bowman, principal geological engineer |
| 14 | HMHSurveying 4945 W. Patrick Lane Las Vegas 89118 534-7505 • HMHEngineering.com |
1994 | 11 | 1 | Rancho Drive improvements, Walnut Recreation Center Park, Pedestrian Bridge | G. Cash Wilson, CEO |
| 15a | Sigma Engineering Solutions 313 Pilot Road Ste. B Las Vegas 89119 247-4462 • SigmaNV.com |
2005 | 10 | 4 | I-15 South design build south bridge design, Red Rock Resort event area, Tropicana Hotel 3000 Wing Implosion | Joseph Farre, president |
| 15b | Geotechnical & Environmental Services 7150 Placid St. Las Vegas 89119 365-1001 • GESNevada.com |
1992 | 10 | 6 | 500 Main St. Parking Garage, Oakey Meadows Storm Drain, Cornerstone Park | Gregory DeSart, president, owner |
| 15c | Desimone Consulting Engineers 6625 S. Valley View Blvd Ste. 124 Las Vegas 89118 677-3400 • De-Simone.com |
2005 | 10 | 5 | Las Vegas City Hall, The Cosmopolitan of Las Vegas, Vdara Tower at the CityCenter | Farro Tofighi, managing principal |
| 18a | Rolf Jensen & Associates 376 E. Warm Springs Road Ste. 210 Las Vegas 89119 699-5391 • RJAInc.com |
2000 | 9 | 4 | CityCenter, Cosmopolitan of Las Vegas, Palazzo | Jeffrey Grove, operations manager |
| 18b | CivilWorks 4945 W. Patrick Lane Las Vegas 89118 534-7555 • CivilWorksOnline.com |
1998 | 9 | 1 | Walnut Recreation Center Park, Steinberg Diagnostic Medical Imaging, Tiburon Park | Brandon Potts, principal engineer |
| 20a | John A. Martin & Associates of Nevada 7730 W. Sahara Ave., Ste. 115, Las Vegas NV 89117 248-7000 • JAMANV.com |
1973 | 8 | 7 | Tivoli Village, City of Las Vegas energy upgrades, CSN energy projects | Steve Schiller, president |
| 20b | L.R. Nelson Consulting Engineers 6765 W. Russell Road, Ste. 200, Las Vegas NV 89118 798-7978 • LVENG.com |
1987 | 8 | 7 | CCSD N.W. Transportation Center, Westcliff Pines Senior Apartment Complex, City of Henderson 16-inch Water Main Phase II | Larry Nelson, president |
| 20c | Project Engineering Consultants 285 E. Warm Springs Road, Ste. 108, Las Vegas NV 89119 360-1044 • PEC.US.com |
1996 | 8 | 5 | City of Las Vegas Large Diameter Sewer Assessment, Water Pollution Control Facility Corrosion Control Project, City of Las Vegas Storm Drain Assessment | Don Davis, vice president, Nevada regional manager |
| 23 | TJK Consulting Engineers 5459 S. Durango Drive, Ste. 100 Las Vegas NV 89113 871-3621 • TJKEngineers.com |
1986 | 7 | 2 | McCarran Terminal 1 renovation, CCSD Career Technical Academies, UMC Northeast Tower and renovation | Tom Anderson, president |
| 24a | Thomad Engineering 4535 W. Russell Road, Ste. 12 Las Vegas NV 89118 388-7755 • ThomadEngr.com |
2003 | 5 | 4 | Lexus of Henderson, Hard Rock Hotel remodel, UNLV Student Dining Commons | Mohammed Thomad, principal |
| 24b | ATC Associates 2925 E. Patrick Lane, Ste. M Las Vegas NV 89120 798-5750 • ATCAssociates.com |
2001 | 5 | 1 | LVCVA, F-16 Hangar/Green Flag Facility, Ritchie Bros. Auction Building | Rex Heppe, branch manager |
| 26a | Dwyer Engineering 7310 Smoke Ranch Road, Ste. E Las Vegas NV 89128 254-2200 • DwyerEngineering.com |
1994 | 3 | 3 | Army Reserve Center at Sloan, Red Rock Commercial Center, Eckhorn/Ponderosa Subdivision | David Dwyer, principal |
| 26b | The WLB Group 2551 N. Green Valley Parkway, Ste. 425 Henderson NV 89014 458-2551 • WLBGroup.com |
1988 | 3 | 1 | Sunset Park, Flamingo Wash, Galleria at Sunset mall expansion | Brian Patterson, director of operations |
| 28 | Advanced Engineering 4080 E. Lake Mead Blvd., Ste. C-230 Las Vegas NV 89115 405-1590 • AdvancedEngineeringLV.com |
2007 | 1 | 1 | Snap Towing | James Brewer, partner |