1 | 1 | United Cleanup Oak Ridge LLC (UCOR) 701 Scarboro Road Oak Ridge, TN 37830
| 865-576-8321 ucor.com 2,122 / 2,122
| Y
| Y
| Y
| Y
| Y
| Environmental cleanup; radioactive waste management, environmental monitoring and restoration, asset management
| Amentum Jacobs Falls Church, VA Dallas, TX
| Ken Rueter President, CEO 2011
|
2 | 2 | Atkins Nuclear Secured 545 Oak Ridge Turnpike Oak Ridge, TN 37830-7187
| 865-483-8247 atkinsglobal.com/nuclear 248 / 534
| | Y
| Y
| Y
| Y
| Nuclear safety, project management, business support services, quality assurance, staff augmentation, radioactive waste management
| SNC-Lavalin Montreal, QC Canada
| Tom Jouvanis President 2001
|
3 | 4 | GEM Technologies 2033 Castaic Lane Knoxville, TN 37932
| 865-560-9434 gemtechnologiesinc.com 238 / NA
| | Y
| Y
| | Y
| Radiological and hazardous decontamination and demolition, waste management, infrastructure support
| NA NA
| Michael Evans President, CEO 1994
|
3 | 3 | Strata-G, LLC 2027 Castaic Lane Knoxville, TN 37932
| 865-934-3400 stratag.org 238 / 258
| Y
| Y
| Y
| Y
| Y
| Utilities, infrastructure, ES&H, nuclear operations, waste management
| NA NA
| Elliott Barnett John Patterson CEO President 2002
|
5 | 5 | North Wind Group 2800 Solway Road Knoxville, TN 37931
| 865-556-8014 northwindgrp.com 196 / 2,097
| Y
| Y
| Y
| Y
| Y
| NA
| Cook Inlet Region Inc. Anchorage, AK
| Christopher Leichtweis CEO, president 1997
|
6 | 6 | Spectra Tech, Inc. 132 Jefferson Court Oak Ridge, TN 37830
| 865-483-7210 spectratechinc.com 137 / NA
| Y
| Y
| Y
| Y
| Y
| NA
| NA NA
| Dr. Loong Yong President 1995
|
7 | 7 | Perma-Fix Environmental Services 1093 Commerce Park Drive, Ste. 300 Oak Ridge, TN 37830
| 865-690-0501 perma-fix.com 111 / 374
| | Y
| Y
| | Y
| Nuclear/radioactive waste management
| Perma-Fix Environmental Services Atlanta, GA
| Mark Duff President, CEO 1990
|
8 | 9 | Boston Government Services (BGS) 105 Mitchell Road, Ste. 101 Oak Ridge, TN 37830
| 866-730-7353 bgs-llc.com 103 / 260
| | Y
| Y
| | Y
| Engineering design, nuclear safety analysis, nuclear criticality safety, nuclear operations support, capital project management, waste planning
| NA NA
| Harry Boston President, CEO 2007
|
9 | 8 | SES Group of Companies 1006 Floyd Culler Court Oak Ridge, TN 37830
| 865-481-7837 specproenv.com 100 / 535
| | | Y
| Y
| Y
| Design-build and design-bid-build construction, heavy and civil construction, DoD fuel systems construction
| Bristol Bay Native Corp. Anchorage, AK
| Basil Skelton President, CEO 1992
|
10 | 10 | S&ME Inc. 1413 Topside Road Louisville, TN 37777
| 865-970-0003 smeinc.com 76 / 1,128
| Y
| | Y
| Y
| Y
| Geotechnical and civil engineering, environmental, construction services, land development, planning, geomatics
| S&ME Inc. Louisville, TN
| Elizabeth Porter Randal Martin Leira Douthat Ken Barry Michael Stomer Eric Solt Rob Sanders Brad Salsbury VP VP VP VP VP Environmental senior project manager Geomatics group leader Senior project manager 1988
|
11 | 13 | Barge Design Solutions, Inc. 520 W. Summit Hill Drive, Ste. 1202 Knoxville, TN 37902
| 865-637-2810 bargedesign.com 64 / 461
| | | Y
| Y
| Y
| Multidisciplinary engineering (civil, transportation, mechanical, electrical, structural, hydrologic/hydraulic, and environmental), architectural, landscape architectural, interior design, geomatics, management consulting, and information management services
| Barge Design Solutions, Inc. Nashville, TN
| Casey Tyree VP 1972
|
12 | 15 | Navarro Research and Engineering Inc. 1020 Commerce Park Drive Oak Ridge, TN 37830
| 865-220-9650 navarro-inc.com 60 / 600
| Y
| Y
| Y
| Y
| Y
| Waste management
| NA TN
| Susana Navarro President 1993
|
13 | 16 | Civil & Environmental Consultants Inc. 2704 Cherokee Farm Way, Ste. 101 Knoxville, TN 37920
| 865-977-9997 cecinc.com 58 / 1,304
| | | Y
| Y
| Y
| Phase I/due diligence, site investigation, remediation hydrogeology, groundwater modeling, permitting, compliance
| Civil & Environmental Consultants Inc. Pittsburgh, PA
| Aaron Henry P.E. principal, office lead 2014
|
13 | 11 | Wood Environment & Infrastructure Solutions, Inc. 2030 Falling Waters Road, Ste. 300 Knoxville, TN 37922
| 865-671-6774 woodplc.com 58 / 40,000
| Y
| Y
| Y
| Y
| Y
| Environmental investigation, remedial design and implementation, water, permitting, mitigation
| Wood PLC Aberdeen, Scotland
| Edwin Watkins Operations manager 1972
|
13 | 11 | GEOServices 2561 Willow Point Way Knoxville, TN 37931
| 865-539-8242 geoservicesllc.com 58 / 136
| Y
| Y
| Y
| Y
| Y
| Construction services, laboratory services
| GEOServices Knoxville, TN
| Dennis Huckaba Professional engineer, president 2006
|
16 | 14 | Alliant Corporation 320 N. Cedar Bluff Road, Ste. 200 Knoxville, TN 37923
| 865-934-2222 alliantcorp.com 56 / NA
| | | Y
| Y
| Y
| Energy management, engineering, project control and management, estimating, geoenvironmental, field operations support
| NA NA
| Terence Douglas Greg Galaher President Executive VP 2000
|
17 | 18 | XCEL Engineering Inc. 1066 Commerce Park Drive Oak Ridge, TN 37830
| 865-481-3200 xceleng.com 47 / NA
| | | Y
| Y
| Y
| NA
| NA NA
| Joe Zimmerman Dr. Iqbal Ahmed President VP
2003
|
18 | 17 | Amentum 105 Mitchell Road, Ste. 200 Oak Ridge, TN 37830
| 865-425-7000 amentum.com 44 / NA
| | | | | | NA
| Amentum Germantown, MD
| Cheryl Cabbil Robert Sledzik Richard Giannelli Paul Gubanc VP VP PE, senior project manager, office manager PE chief nuclear safety officer 1999
|
19 | 19 | Strata Environmental Services 110 Perimeter Park Road, Ste. E Knoxville, TN 37922
| 865-539-2077 strataenv.com 30 / 30
| Y
| | Y
| Y
| Y
| Environmental due diligence; environmental outsourcing (air, water, waste, fueling); and environmental management software
| NA NA
| Kevin Parr President 1992
|