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Prefer PDFs? A printer-friendly PDF of this list is available. Download PDF file Prefer Excel? A complete spreadsheet of this list is available. Download Excel file Engineering Companies Ranked By Licensed Professional Engineers, Then Number of Employees Rank '22 '21 Company Phone Website Area offices Lic. professional engineers Engineer interns Local employees Parent company Total employees/offices Top local executive Founded locally 1 1 Mesa Associates, Inc. 10604 Murdock Drive Knoxville, TN 37932 865-671-5400 mesainc.com 3 / Knoxville 791 21 363 Mesa Associates, Inc. Madison, AL, USA NA / 17 Reggie R. Headrick General manager 1988 2 3 Cannon & Cannon, Inc. 8550 Kingston Pike Knoxville, TN 37919 865-670-8555 cannon-cannon.com NA / Knoxville 23 7 56 NA NA NA Houston Daugherty Timothy Tucker Michael Jones Wain Gaskins President, CEO COO CFO West TN operations officer 1996 3 5 Barge Design Solutions, Inc. 520 W. Summit Hill Drive, Ste. 1202 Knoxville, TN 37902 865-637-2810 bargedesign.com 1 / Knoxville 22 9 64 Barge Design Solutions, Inc. Nashville, TN 461 / 16 Casey Tyree VP 1972 4 6 MS Technology 137 Union Valley Road Oak Ridge, TN 37830 865-483-0895 mstechnology.com 1 / Oak Ridge 21 NA 53 NA NA NA Doyle R. Inklebarger President, CEO 1994 5 7 Jacobs Engineering Group Inc.1 2095 Lakeside Centre Way, Ste. 200 Knoxville, TN 37922 865-560-2801 jacobs.com NA / Knoxville, Oak Ridge 20 0 315 Jacobs Engineering Group Inc. Dallas, TX NA / 230 plus Levitte Cox VP, general manager 1994 6 10 MBI Companies Inc. 299 N. Weisgarber Road Knoxville, TN 37919 865-584-0999 mbicompanies.com 1 / Knoxville 16 5 96 NA NA NA Louis Cortina Eddie Jett Bill Steverson Charles Grant Erin Harlow Nick Deal Marvin Titlow CFO CEO President Senior VP VP of architecture Board of directors chairman CIO 1990 7 15 Gresham, Smith & Partners 2095 Lakeside Centre Way, Ste. 120 Knoxville, TN 37922 865-521-6777 gspnet.com 1 / Knoxville 16 4 43 Gresham, Smith Nashville, TN 1,068 / 25 Jason Brady Principal, area transportation leader 2005 8 8 Merrick & Company 1093 Commerce Park Drive Oak Ridge, TN 37830 865-685-5520 merrick.com 1 / Oak Ridge 15 NA 55 Merrick & Company Greenwood Village, CO, U.S. 850 / 23 Christopher Sherry David Luke Steve Betts CEO COO CFO 1955 9 9 Amentum 105 Mitchell Road, Ste. 200 Oak Ridge, TN 37830 865-425-7000 amentum.com NA / Oak Ridge 15 NA 44 Amentum Germantown, MD NA / 16 Cheryl Cabbil Robert Sledzik Richard Giannelli Paul Gubanc VP VP PE, senior project manager, office manager PE chief nuclear safety officer 1999 10 14 Process Engineering Associates 700 S. Illinois Ave., Ste. A202 Oak Ridge, TN 37830 865-220-8722 processengr.com 1 / Oak Ridge 15 0 38 NA NA NA L.H. Boyd Jr. Managing partner 1996 11 4 Strata-G, LLC 2027 Castaic Lane Knoxville, TN 37932 865-934-3400 stratag.org 1 / Knoxville 14 3 238 NA NA NA Elliott Barnett John Patterson CEO President 2002 12 11 Wood Environment & Infrastructure Solutions, Inc.2 2030 Falling Waters Road, Ste. 300 Knoxville, TN 37922 865-671-6774 woodplc.com 1 / Knoxville 14 0 58 Wood PLC Aberdeen, , Scotland NA / 171 Edwin Watkins Operations manager 1972 13 12 S&ME Inc. 1413 Topside Road Louisville, TN 37777 865-970-0003 smeinc.com 2 / Louisville, Knoxville 13 6 84 S&ME Inc. Raleigh, TN, USA 1,165 / 35 Ken Barry Leira Douthat Elizabeth M. Porter Michael R. Stomer Randal G. Martin Rob Sanders Brad Salsbury Eric Solt Greg Page Vice president Vice president Vice president Vice president Vice president Geomatics area manager Senior project manager Environmental senior project manager Principal engineer 1988 14 13 Civil & Environmental Consultants Inc. 2704 Cherokee Farm Way, Ste. 101 Knoxville, TN 37920 865-977-9997 cecinc.com 2 / Knoxville, Sevierville 13 4 58 Civil & Environmental Consultants Inc. Pittsburgh, PA 1,304 / 28 Aaron M. Henry P.E. principal, office lead 2014 15 16 Ardurra Group, Inc. 2160 Lakeside Centre Way, Suite 201 Knoxville, TN 37922 865-690-6419 ardurra.com 1 / Knoxville 12 8 33 NA NA NA William Fulghum Mike MacIndoe Practice director Owner 2003 16 2 GEM Technologies 2033 Castaic Lane Knoxville, TN 37932 865-560-9434 gemtechnologiesinc.com 3 / Knoxville, Oak Ridge, Alcoa 7 0 238 NA NA NA Michael Evans President, CEO 1994 17 17 North Wind Group 2800 Solway Road Knoxville, TN 37931 865-556-8014 northwindgrp.com 3 / Oak Ridge, Knoxville, Sevier 7 7 196 Cook Inlet Region Inc. Anchorage, AK NA / NA Christopher Paul Leichtweis CEO, president 1997 18 18 Atkins Nuclear Secured 545 Oak Ridge Turnpike Oak Ridge, TN 37830-7187 865-483-8247 atkinsglobal.com/nuclear 1 / Oak Ridge 5 0 248 SNC-Lavalin Montreal, QC, Canada 38,000 / 344 Tom Jouvanis President 2001 19 19 Engineering Services Group, Inc.1 900 E. Hill Ave., Ste. 350 Knoxville, TN 37915 865-522-0393 esg1989.com NA / Knoxville 5 2 25 NA NA NA Jeffrey R. Whillock President 1989 20 20 Haines Structural Group 800 S. Gay Street, Ste. 1750 Knoxville, TN 37929 865-329-9920 haines-sg.com 1 / Knoxville 5 5 16 NA NA NA Bobby Haines President 2009 21 20 Hodge Engineering 322 Nancy Lynn Lane, Ste. 9 Knoxville, TN 37919 865-546-3232 heci.com 1 / Knoxville 4 0 15 NA NA NA Michael D Treadway James E Hodge President Chairman, CEO 1987 1 Information from previous survey; 2 Source declined to participate. Information from 2021 survey Source: Individual company representatives, company websites. NA=not applicable or not available. If you notice an error or omission, please contact Hayley Choy, 865-342-6494 or lists@knoxvillebiz.com.