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X X I X 64 BO O K O F L I S T S 2 0 2 6 P R O F E S S I O NA L Maine's largest engineering firms Ranked by number of Maine engineers, then Maine employees Maine' s largest engineering fir ms Rank ed b y n umber of Maine eng ineers , then Maine emplo y ees Areas of engineering F ir m 1 VHB 500 Southborough Drive, Suite 105B, South P or tland 04106 889-3150 • vhb.com 2 Stantec Consulting Ser vices Inc. 2211 Congress St., Suite 380, P or tland 04102 883-3355 • stantec.com 3 Wright-Pierce 11 Bowdoin Mill Island, T opsham 04086 725-8721 • wright-pierce.com 4 W oodard & Cur ran Inc. 12 Mountfor t St., P or tland 04101 800-426-4262 • woodardcur ran.com 5 HNTB Cor p. 82 Running Hill Road, South P or tland 04106 774-5155 • hntb.com 6 Kleinschmidt Associates 141 Main St., 04967 487-3328 • kleinschmidtgroup.com 7 Sebago T echnics 75 John Rober ts Road, Suite 4A, South P or tland 04106 200-2100 • sebagotechnics.com 8 Oak P oint Associates 231 Main St., Biddeford 04005 283-0193 • oakpoint.com 9 Hale y W ard Inc. One Merchants Plaza, Suite 701, Bangor 04401 989-4824 • hale yw ard.com 10 Thor nton T omasetti 14 Y or k St., P or tland 04101 245-6060 • thor ntontomasetti.com 11 Se vee & Maher Engineer s Inc. 4 Blanchard Road, Cumber land 04021 829-5016 • sme-engineer s.com 12 T .Y . Lin Inter national Nor thbrook Drive, F almouth 04105 781-4721 • tylin.com 13 WBRC Inc. 44 Central St., Bangor 04401 947-4511 • wbrcinc.com 14 Acor n Engineering Inc. 16 Middle St., P or tland 04101 775-2655 • acor n-engineering .com 15 SMRT Architects & Engineer s 75 W ashington A ve., P or tland 04101 877-700-7678 • smr tinc.com 16 Har riman 46 Har riman Drive, Aubur n 04210 784-5100 • har riman.com 17 Hale y & Aldrich Inc. 75 W ashington A ve., Suite 1A, P or tland 04101 482-4600 • hale y aldrich.com 18 Bur ns & McDonnell One City Center , Suite 700, P or tland 04101 517-8460 • bur nsmcd.com Maine licensed engineer s/ Maine emplo yees/ 2024 total re venue 1 59 93 $ 19,593,000 58 148 N/A 56 126 $ 72,700,000 47 185 $ 359,782,013 34 64 $ 15,506,000 26 228 N/A 21 135 $ 17,000,000 21 61 $ 17,700,000 20 109 $ 45,700,000 19 19 $ 380,000,000 18 77 $ 22,000,000 18 58 $ 832,000,000 15 55 $ 14,557,691 15 26 N/A 14 86 $ 30,533,986 13 62 $ 12,500,000 11 25 $ 247,100,000 9 29 N/A Chemical Electrical Civil En vironmental Geotechnical Mechanical Str uctural W aste w ater Other ser vices En vironmental & transpor tation planning , per mitting , regulator y compliance, h ydraulics, sur ve ying uction inspection A viation, pow er engineering , mining , architecture, landscape architecture, interior design Drinking w ater , civil and transpor tation infrastr ucture, stor mw ater Contract operations Urban, municipal and en vironmental planning , program management, constr uction ser vices, architecture, tolling , advisor y , transit and rail Regulator y and en vironmental consulting ser vices to energ y companies and go ver nment agencies Civil, transpor , sur ve ying , landscape architecture, 3D modeling & scanning , en vironmental sciences and per mitting F ire protection engineering , architecture, interior design, planning Architecture, BIM, interior design, industrial h ygiene, en vironmental compliance, natural resources, sur ve ying Sustainable strategies, rene w al & forensics consulting , protective design, historic preser vation Site in industrial h ygiene & indoor air quality , pow er & utility ser vices, w ater resources Planning and constr uction management Planning , architecture, interior design, landscape architecture Landscape architecture, w ater resources, sustainable design, third-par ty ser vices, municipal consulting , constr uction administration Architecture, commissioning , interior design, site design, sustainable design Architecture, interior design, master planning Geother mal, constr uction management, en vironmental science, geolog y , h ydrogeolog y T ransmission and distribution planning and design, infrastr ucture, facility and en vironmental needs Principal(s) year founded Tim Br y ant managing director , Maine 1979 Gord Johnston president & CEO 1929 P aul Bir k el president & CEO 1947 Alyson W atson CEO 1979 Matthe w Hear n , Nor ther n Ne w England & associate vice president 1914 Tim Oak es CEO 1966 Mar k Adams president & CEO 1981 Rober t Tillotson president 1979 Denis St. P eter president & CEO T ra vis No yes COO 1978 Ethan Rhile associate principal 1949 Erik Clapp president Dan vice president 1985 Matthe w Cummings president 1954 Ra y Bolduc president & CEO 1902 Will Sa vage president 2007 Bradle y Hodges president 1986 Mar k Lee CEO 1870 Sha wn F iore CEO Lizetta F ennessy COO 1957 Jer r y F an executive vice president 1898 m via sur ve y . Note: P or tland's WSP USA En vironment & Infrastr ucture Inc. and Gor rill P almer Consulting Engineer s Inc., with 34 and 14 Maine-licensed engineer s respectively in 2024, did not respond to the sur ve y b y press time. N/A = not a vailable. 1 Maine-based engineer s and emplo m-wide re venue - This list w as compiled b y Stephanie R. Meagher and published in the July 28, 2025, issue of Mainebiz. AREAS OF ENGINEERING 1 Maine-based engineers and employees; firm-wide revenue This list was compiled by Stephanie R. Meagher and published in the July 28, 2025, issue of Mainebiz. N O T E : Portland's WSP USA Environment & Infrastructure Inc. and Gorrill Palmer Consulting Engineers Inc., with 34 and 14 Maine-licensed engineers respectively in 2024, did not respond to survey by press time. N/A = not available. S O U R C E : Each firm via survey.

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