design-build

JAMCO Ventures LLC is a San Antonio-based SBA Federal Certified HUBZone Contractor serving government and commercial clients. It provides construction, renovation, maintenance, and specialty services, including design-build, new construction, and mechanical/electrical/plumbing work at secure government facilities. The company is also HUB certified by the Texas CPA and DBE, SBE, MBE, ACDBE, and HABE certified by SCTRCA, and formerly graduated from the SBA 8(a) Program.

environmental abatementLEED constructionmaintenance and repairmechanical/electrical/plumbingnew constructionrenovation

Jamerson-Lewis Construction is a full-service general contractor based in Lynchburg, Virginia, providing quality construction services throughout Virginia. Formed in 2014 by the merger of J.E. Jamerson & Sons and C.L. Lewis & Company, Inc., the firm has over 150 years of combined construction experience and over 95 years of construction excellence.

construction managementgeneral contractingPre-ConstructionPublic/private partnerships

James B. Donaghey, Inc. is a full service self-performing heating, ventilation, air conditioning, piping and plumbing mechanical contractor based in Mobile, Alabama. Founded in 1921 by James B. Donaghey as a plumbing repair and contracting business, the family-owned S Corporation has grown to three offices and serves industrial, institutional and commercial projects across the Gulf Coast.

BIMdesign assistHVAC installationlaser cuttingpipe cuttingpipe prefabricationpipe profilingpipingplumbingsheet metal fabricationVDCwelded ductwork fabricationwelding

James R. Griffin, Inc. is a service-oriented Commercial General Building Contractor located in Fremont, California, and has been in continuous family operation for the past 112 years. It serves Private, Corporate, Educational, and Public Construction Consumers, and bids, negotiates, and provides Design-Build Services.

biddingdemolitiondesign assistgeneral building constructiongeneral engineeringnegotiation

J.W. Fowler is a third-generation, family-owned heavy civil contractor founded in 1972 that builds complex heavy civil infrastructure projects in tunneling, utilities, and water/wastewater for public and private clients across Washington, Oregon, and California. The company specializes in complex multi-disciplinary projects using in-house resources and collaborative delivery methods.

carrier pipe installationcollaborative deliveryconcrete pouringEPB tunnelingexcavationgroutingmicrotunnelingpipe fittingpipeline installation and rehabilitationpipe rammingProgressive Design-Buildrock tunnelingshaft shoringtrenchless constructiontrench shoringtunneling

Janke General Contractors, Inc. was founded in 2001 by Steve Janke and is headquartered in Athens, Wisconsin. The company performs large civil projects including dam construction, lock reconstruction, highway and pedestrian bridges, box culverts, parks and recreational projects, and utility construction, and operates its own 20,000 SF fabrication facility. It offers consultation, engineering, project management, and design-build services to local and state governments, businesses, and private parties throughout the Midwest.

bridgeworkengineeringfabricationgradingmarine constructionproject managementrestorationutility services

Janus Contractors, Inc. is a self-performing, full-service general contracting company based in the DMV Region, serving federal, state, and local government agencies. Founded in 2012, it focuses on quality craftsmanship, safety, and integrity, with core values including efficiency and adaptability, technology, diversity and inclusion, partnership, and community.

Acoustical ceilingsbathroom accessoriesbathroom partitionsconstruction managementCost Estimatingdoors, frames, and hardwaredrywall installationframinggeneral contractingpaintingpreconstruction planningresilient flooringRisk Analysisschedulingselective demolitionSelf-Performtilingvisual display board installation

JAP Construction LLC is a general contracting company offering residential, multifamily, and government building services. Its residential work covers projects with a maximum of 10 dwelling units; multifamily work covers projects with more than 10 dwelling units including retail spaces; and government work includes design-build, build, renovation, and remodeling. The company also states it will plant one tree for every 200 square feet of built space.

general contractingremodelingrenovation

J.A. Rosa Construction is a full-service general contractor serving commercial, municipal, and institutional clients throughout Connecticut. Led by Managing Member John Rosa, the firm brings over 25 years of experience delivering projects ranging from ground-up construction to complex renovations in active, occupied spaces, including specialty services like elevator construction and historic restoration.

carpentryconcrete and masonryconstruction managementdrywallelevator constructionestimatingexcavationflooringgeneral contractinghazardous material remediationhistoric restorationinterior finishespaintingpre-construction consultationsite work

Billy W. Jarrett Construction Company, Inc. is a General Contractor providing construction and design-build services, primarily to various Federal Government contracting agencies. With offices in Prattville, AL and Martinez, GA, Jarrett was established in 1988 and is an SBA Vet-Cert Listed Service Disabled Veteran Owned Small Business (SDVOSB) contractor. It has completed 140+ contracts totaling over $215 million, with a bonding capacity of $20M single / $100M aggregate, and takes a special interest in providing solutions for the Department of Veterans A

constructiongeneral contracting

Scheibel Construction is a fourth-generation family owned construction business with over 75 years of experience, based in Huntingtown, Maryland. The company provides a small-town family atmosphere while delivering big city results across a wide array of services, upholding a tradition of excellence with on-time, on-budget results.

construction managementgeneral contractingmaster carpentryOwner Representative/Construction AdministrationPreconstructionSelf-Performance

J.A. Street & Associates is a locally-owned general contracting firm with corporate offices in Blountville, Tennessee, serving Northeast Tennessee and Southwest Virginia. It is an industry leader in the design and construction of commercial, industrial and institutional buildings, offering single-source, integrated design-build project delivery. The company is an ESOP with 35% owned by employees and was started in 1985.

construction managementConstruction schedulingCost Estimatinggeneral contractingPre-construction servicessustainable constructionvalue engineering

Jaymar Construction is a commercial and residential general contractor located on the Northshore of the greater New Orleans area, serving South Louisiana and Gulf Coast Mississippi. It specializes in metal building construction, commercial roofing and roof coatings, design-build construction, remodeling, and ICF construction, and is a certified ICF contractor and certified roof coating installer.

commercial constructioncommercial roofingconcrete foundationsdemolitionmetal building constructionpavingremodelingroof coatingssite clearingThermography Inspections

Jay Steel LLC is a comprehensive structural steel construction management company primarily serving the Northeastern United States since 2000. It serves industrial, commercial, and institutional clients with design-build, detailing, fabrication, and erection services, emphasizing safety, speed, and innovation.

coatingsconnection designcrane servicesdetailingengineeringgalvanizationstructural steel erectionstructural steel fabrication

J. Banicki Construction, Inc. (Banicki) is a heavy civil construction firm founded locally in Phoenix by the late Jerry Banicki in 1991, delivering horizontal infrastructure services across Arizona. It has completed over 1,400 federal, state, and municipal projects and has been a pioneer in alternative project delivery methods since 2000, delivering 69 CMAR projects.

apron pavingCMARCost Estimatingdesign-bid-buildJob Order Contractingrunway and taxiway constructionschedulingself-performing structures workstructural rehabilitationvalue engineering

J&B Mechanical Contractors is a commercial plumbing contractor based in East Hartford, Connecticut, with over 60 years of experience in plan and spec as well as design-build projects. Founded in 1962 as J&B Plumbing & Heating by Joseph Boticello, it was purchased and rebranded by Joe Modugno in 2003 and became family owned and operated in 2023. The company is a Connecticut SBE & Gov't Certified Plumbing Contractor serving educational, retail, industrial, commercial, and medical sectors.

backflow testingplan and spec constructionplumbing systems design and developmentpre-construction schedulingproject managementself-perform plumbing and heating tradessite-specific safety plans

JB STEEL® is a family-owned, self-performing design-build general contractor specializing in commercial and industrial construction. It offers construction management, general contracting, design-build, self-performance, and subcontracting services, with divisions for metal buildings, structural concrete, structural steel fabrication and installation, civil construction, concrete tilt-up, and insulated metal panels. The company has over 50 years of experience and was ranked a top 3 metal building contractor on the west coast by Metal Construction News in

civil constructionconcrete tilt-upconstruction managementdemolitionexcavationgeneral contractingSelf-Performancesewer installationsteel erectionsteel fabricationstructural concretesubcontracting

Cannistraro is a Boston-based industrial mechanical contractor specializing in HVAC, plumbing, and fire protection. The company provides mechanical construction solutions, design-build projects, preconstruction services, engineering, virtual design, 3D laser scanning, in-house fabrication, and modular construction, along with 24-hour service and preventative maintenance.

24 hour emergency service3D laser scanningengineeringfire protectionHVAC installationin-house fabricationmechanical constructionmodular constructionplumbingpreconstruction planningpreventative maintenancevirtual design

JCJ Chavez Construction Inc. is a federal and commercial construction management firm based in Ridgecrest, California, established in 2010. The company provides a full range of construction services, coordinating with A/Es, teaming partners, suppliers, and facility users to complete projects.

ceramic tile installationconstruction managementdoor frame and finish hardware installationfiber optics installationgypsum board installationmetal stud framingquality controlsafety managementtenant improvements

JD Bravo Company, Inc. is a veteran-founded, SBA 8(a)-certified, Service-Disabled Veteran-Owned Small Business (SDVOSB) headquartered in Malvern, Pennsylvania. Founded in 2011 by James M. Davie, a former U.S. Marine, it delivers construction and program management services to public sector and institutional clients, with over $35 million in federal contracts delivered.

carpentryConstruction delay analysisconstruction managementCost EstimatingCPM schedulingdemolitionForensic schedule analysisgeneral constructionproject managementquality controlSafety Supervisionsite supervisionvalue engineering

JEM Group is a woman-owned construction firm based in Camp Hill, Pennsylvania, founded in 2003. The company provides design-build, construction management, general construction, cost estimating, home modifications, and grant administration services. It serves sectors including corporate, education, government, healthcare, hospitality, multi-unit housing, nonprofit, and retail. JEM Group has managed more than 8,885 home adaptation projects across all 67 Pennsylvania counties since 2016.

construction managementCost Estimatinggeneral constructionGrants Administrationhome modificationsJob Order ContractingProcurement & Bid Managementprogram managementvalue engineering

Jenco Building Group Inc. is a San Diego general contractor specializing in commercial and residential construction. The company offers design-build, construction management, estimating, and scheduling services, and describes itself as moving forward with its 3rd generation of family builders. It serves San Diego, Riverside, and Imperial County.

commercial constructionconstruction managementestimatingremodelingresidential constructionscheduling

Jendoco Construction Corporation is a general contractor and construction manager serving the Western Pennsylvania region for more than 6 decades. Founded in 1957 by Peter C. Dozzi, it is a privately-held, family-owned business that completes approximately $50M of construction annually on projects ranging from $100k to $80M within a 2-hour radius of downtown Pittsburgh. It is renowned for delivering complex projects with a focus on cost control, schedule management, and sustainability.

construction managementgeneral contractingIntegrated Project DeliveryPre-Constructionregenerative project deliveryself-performed workSustainability consultingvirtual construction

Jersey Mechanical Contractors, Inc. (JMC) is a full-service commercial mechanical contracting firm founded in 1986 by Robert J. Butler, providing HVAC, plumbing, and mechanical systems installation, service, and maintenance throughout New Jersey. JMC serves educational, healthcare, industrial, medical, and pharmaceutical clients with union-trained technicians and project managers.

backflow preventioncommissioningfabricationgas pipingHVAC installationplumbingpreventative maintenanceprocess pipingproject managementtemperature control