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V O L . X X X I I N O. X I I § 2 J U N E 1 , 2 0 2 6 30 T H E L I S T Largest Maine-based construction firms Ranked by 2025 revenue Maine-based construction firms Ranked by 2025 revenue Company 2025 revenue/ Maine employees/ total employees Notable project(s) completed in 2025 Ongoing project Principal(s) 1 Cianbro 101 Cianbro Square, Pittsfield 04967 487-3311 • cianbro.com $ 1.3 billion 800 3,100 Southport Swing Bridge National Park Service Shoreline and Seawall Rehabilitation, Washington, D.C. Peter "Andi" Vigue CEO 2 Sargent 3 Godfrey Drive, Orono 04473 827-4435 • sargent.us $ 293.8 million 389 591 Maine Turnpike Authority, Exits 35 & 36, Saco ( $ 42.1 million) MaineDOT Route 1 Bypass, Presque Isle ( $ 77.9 million) Eric Ritchie president & CEO 3 Landry/French Construction 160 Pleasant Hill Road, Scarborough 04074 730-5566 • landryfrench.com $ 266.4 million 99 135 Rock Row Health Campus, Westbrook ( $ 94.0 million) Windham-Raymond Middle School, Windham ( $ 108.0 million) Kevin French CEO 4 Reed & Reed Inc. P.O. Box 370, Woolwich 04579 443-9747 • reed-reed.com $ 152.0 million 190 200 Downeast Wind Farm, Washington County ( $ 100.0 million) Maine Maritime Waterfront Project, Castine ( $ 86.0 million) Jackson A. Parker chairman & CEO 5 Wright-Ryan Construction 10 Danforth St., Portland 04101 773-3625 • wright-ryan.com $ 138.8 million 114 114 Vertical Harvest Farm, Westbrook ( $ 53.1 million) Conners Emerson School, Bar Harbor ( $ 60.8 million) Alan Sparn president John Ryan board chair 6 Shaw Brothers Family Foundation Inc. 341 Mosher Road, Gorham 04038 222-8108 • shawbrothers.com $ 137.0 million 240 240 Plus Power, Gorham ( $ 5.3 million) Windham Sewer ( $ 14.0 million) Jonathan Shaw president 1 7 Zachau Construction 2 Stonewood Drive, Freeport 04032 865-9925 • zachauconstruction.com $ 106.0 million 57 57 Cedar Bend Condominiums, Boothbay Riverton Park, Portland Jeff Zachau CEO Drew Wing president 8 Optimum Construction Inc. 91 Auburn St., Suite 1030, Portland 04103 808-8269 • optimumconstruction.com $ 98.5 million 40 52 Portland International Jetport Terminal Expansion Bath Iron Works Workforce Housing, Bath Kendrick Ballantyne president 2 9 Hebert Construction 150 Mill St., Lewiston 04240 783-2091 • hebertconstruction.com $ 81.5 million 79 79 Wedgewood, Lewiston ( $ 39.0 million) Portland Veterinary Emergency and Specialty Care (PVESC), Falmouth ( $ 27.7 million) Timothy Hebert CEO 10 Penobscot General Contractors 241 U.S. Route 1, Suite 401, Falmouth 04105 236-6390 • penobscotgc.com $ 63.0 million 30 30 The Eddy, Biddeford ( $ 52.0 million) 89 Elm St., Portland ( $ 64.0 million) Clay Maker Jon DiCentes co-presidents 11 Nickerson & O'Day Inc. 35 Airport Road, Brewer 04412 989-7400 • nickoday.com $ 57.8 million 50 50 Acadia Gateway Center, Trenton ( $ 32.0 million) McFarland Hill Maintenance Facility, Acadia National Park ( $ 35.0 million) Wade Poulton president Karl Ward CEO & board chair 12 CCB Inc. 65 Bradley Drive, Westbrook 04092 464-2626 • ccb-inc.com $ 55.5 million 135 137 N/A N/A Marc Belanger president 13 Knickerbocker Group 3 3 Builders Square, Boothbay 04537 633-3818 • knickerbockergroup.com $ 54.5 million 4 88 88 Cape Elizabeth Residence Naples Generational Retreat Danielle Betts president 14 Crooker Construction 103 Lewiston Road, Topsham 04086 729-3331 • crooker.com $ 51.9 million 180 180 Edward Little High School, Auburn ( $ 22.0 million) L.L.Bean expansion, Biddeford ( $ 50.0 million) Ian Messier president Thomas C. Sturgeon CEO 15 Bancroft Contracting Corp. 23 Phillips Road, South Paris 04281 743-8946 • bancroftcontracting.com $ 44.8 million 165 165 Cataract Fishway, Saco-Biddeford ( $ 4.6 million) Casco Bay Islands Terminal ( $ 2.3 million) Mark Bancroft president & CEO 16 R.J. Grondin & Sons 11 Bartlett Road, Gorham 04038 854-1147 • rjgrondin.com $ 43.6 million 150 150 MaineDOT Route 202, Gorham-Buxton-Hollis ( $ 8.3 million) Saco Schools, site improvements ( $ 20.0 million) Larry Grondin president 5 17 Ranger Construction 1 Savage St., Fairfield 04937 680-9320 • rangermaine.com $ 37.8 million 90 90 Lower Main St., utilities improvement, Bar Harbor ( $ 7.2 million) MaineDOT Camden Road Rehabilitation ( $ 9.4 million) Bill Sanborn CEO Jon Sanborn president 6 18 Gorham Sand & Gravel Inc. 939 Parker Farm Road, Buxton 04093 839-2442 • gsgravel.com $ 34.0 million 95 95 Enterprise Rent-A-Car, Saco Elm St. Sewer Repair James Shaw president 7 19 T-Buck Construction 302B Auburn Road, Turner 04282 783-6223 • tbuckconstruction.com $ 31.0 million 50 50 Livermore Waste Water Treatment Facility ( $ 11.0 million) MaineDOT Bar Harbor Cromwell Bridge ( $ 2.5 million) Richard Wentworth president 20 KBS Builders Inc. 8 300 Park St., South Paris 04281 739-2400 • kbsbuildersinc.com $ 30.0 million 120 120 Dougherty Commons, Portland ( $ 3.0 million) Conifer Ridge, Rangeley ( $ 2.1 million) Thatcher Butcher president SOURCE: Each construction firm via survey. Note: Unable to confirm data for Fairfield's Sheridan Construction Corp. by press time; the company would be the 14th largest on the list based on Mainebiz's 2025 survey. See the full list of the 26 firms that have submitted a Mainebiz survey so far in 2026 at mainebiz.biz/data/construction-firms/. N/A = not available. 1 Daniel Shaw, treasurer 2 Ryan Lessard, vice president 3 Additional location at 82 Hanover St. in Portland 4 Includes revenue from design services 5 Sean O'Leary, vice president 6 Les Marcue, general manager 7 Patrick and Darin Shaw, officers 8 Subsidiary of Star Equity Holdings Inc., with additional location in Oxford - This list was compiled by Stephanie R. Meagher and previously published in the April 6, 2026, issue of Mainebiz. Access this list and more at mainebiz.biz/data @ C O M P I L E D B Y S T E P H A N I E M E A G H E R C O M P I L E D B Y S T E P H A N I E M E A G H E R 1 Daniel Shaw, treasurer 2 Ryan Lessard, vice president 3 Additional location at 82 Hanover St. in Portland 4 Includes revenue from design services 5 Sean O'Leary, vice president 6 Les Marcue, general manager 7 Patrick and Darin Shaw, officers 8 Subsidiary of Star Equity Holdings Inc., with additional location in Oxford N O T E : Unable to confirm data for Fairfield's Sheridan Construction Corp. by press time; the company would be the 14th largest on the list based on Mainebiz's 2025 survey. See the full list of the 26 firms that have submitted a Mainebiz survey so far in 2026 at mainebiz.biz/data/construction-firms/. N/A = not available. S O U R C E : Each construction firm via survey.