XL Construction
XL Construction is a Northern California general contractor delivering complex building projects across Advanced Technology, Healthcare, Life Sciences, Education, Commercial, and Civic sectors, with proprietary mass timber expertise and a Graham Group Company affiliation since 2025.
- Company typePrivate
- Founded1991
- HeadquartersMilpitas, United States
- Headcount251–500
- GTM typeB2B
- OfferingServices
What XL Construction does
XL Construction is a privately held general contractor founded in 1991 and headquartered in Milpitas, California, delivering complex building projects across six market sectors: Advanced Technology, Healthcare, Life Sciences, Education, Commercial, and Civic. The firm serves enterprise clients (Google, LinkedIn, Nvidia, Netflix, Lockheed Martin, Genentech, AstraZeneca, Bayer, Kaiser Permanente, UCSF) and public-sector agencies (Counties of San Mateo and Santa Clara, SFO, LBNL) across Northern California from offices in Milpitas, Oakland, and Sacramento with 610+ employees. The company executes multiple delivery methods including CMAR, Design-Build, Design-Bid-Build, Lease-Leaseback, and Progressive Design-Build, priced via competitive bids under lump-sum, GMP, and cost-plus structures.
The firm's core differentiator is mass timber and sustainable building expertise, with over 1,000,000 square feet of mass timber projects delivered, including Google's first ground-up mass timber office at 1265 Borregas in Sunnyvale. The proprietary TimberQuest product is California DSA pre-approved for rapid K-12 and community college deployment. In-house construction technology (BIM/VDC, laser scanning, robotic layout, clash detection), an Integrated Solutions team applying Lean methods (Last Planner System, Pull Planning, A3), and a dedicated Strategic Projects Group for occupied and regulated environments form the operational backbone. Self-perform capability is delivered through wholly-owned subsidiaries Bradley Concrete and Elevated Construction Services, the latter specializing in mass timber erection.
Revenue is earned through project contracts rather than recurring fees, and no public pricing exists; competitive bidding is the primary acquisition channel, supplemented by event-driven demand generation and thought leadership content. The company carries ENR Top 400 national and Top 100 Green Contractor recognition, has earned 120+ industry awards, maintains a 0.58 EMR safety record across 12M+ manhours, and became a Graham Group Company in 2025 while retaining its Bay Area operational identity and brand.
XL Construction firmographics
Firmographics- Name
- XL Construction
- Legal name
- XL Construction Corporation
- Website
- https://xlconstruction.com
- Company type
- Private
- Founded year
- 1991
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- XL Construction is a Northern California general contractor delivering complex building projects across Advanced Technology, Healthcare, Life Sciences, Education, Commercial, and Civic sectors, with proprietary mass timber expertise and a Graham Group Company affiliation since 2025.
- Ownership category
- akta.pro rank
XL Construction industry classification
Industry- Product category
- Commercial Construction Services
- NAICS
- Commercial and Institutional Building Construction (23622), Nonresidential Building Construction (2362)
- SIC
- General Bldg Contractors - Nonresidential Bldgs (1540), Operative Builders (1531)
- akta.pro primary industry
- Office & Corporate Building Construction (IMAFACAA)
- akta.pro secondary industries
- Healthcare Facility Construction (Hospitals, Clinics, Labs) (IMAFACAD), Government & Civic Building Construction (Courthouses, City Halls, Public Safety) (IMAFACAF), New School Construction (Greenfield Builds) (EDAEABAA)
Keywords
Where XL Construction is headquartered
LocationHeadquarters
- HQ city
- Milpitas
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
XL Construction business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- General Construction Services: Traditional general contracting and construction management services delivered across multiple delivery methods (CMAR, Design-Build, Design-Bid-Build, Lease-Lease Back, Progressive Design-Build). Revenue is earned through competitive bids on project contracts, with fees structured as lump-sum, cost-plus, or guaranteed maximum price arrangements.
- Design-Build Services: Integrated design-build delivery leading project teams through conceptual design to construction completion, providing both design management and construction execution under a single contract.
- Self-Perform Work: Subsidiary companies Bradley Concrete (concrete work) and Elevated Construction Services (mass timber erection and structural building) provide self-perform capabilities that add value and control to project delivery.
Go-to-market motion2 records
Distribution channels1 record
Marketing channels7 records
XL Construction product offering
Product offeringCore offering
XL Construction is a Northern California general contractor that delivers commercial building projects across six market sectors — Advanced Technology, Healthcare, Life Sciences, Education, Civic, and Commercial — using delivery methods including CMAR, Design-Build, Design-Bid-Build, Lease-Lease Back, and Progressive Design-Build. The firm specializes in complex, regulated, and occupied environments and is an early adopter of mass timber construction, including its proprietary DSA-pre-approved TimberQuest prefabricated classroom solution for K-12 and community college projects.
Differentiator
Problem solved
Functional benefit
Brands
- TimberQuest: Proprietary prefabricated mass timber classroom building solution pre-approved by California DSA for rapid installation at California K-12 public schools and community colleges
- XLI
Products and services
- General Contracting and Construction Management Services Core general contracting and construction management services delivered through CMAR, Design-Bid-Build, Design-Build, Lease-Lease Back, and Progressive Design-Build methods, structured as lump-sum, cost-plus, or GMP contracts.
- Strategic Projects Group (SPG) Specialized delivery team for complex projects in occupied, regulated, or high-risk environments, combining in-house VDC and MEP capabilities with self-perform work through subsidiaries Bradley Concrete and Elevated Construction Services.
- TimberQuest Prefabricated Mass Timber Classroom Solution Proprietary prefabricated mass timber classroom building product pre-approved by California DSA, offering rapid installation, cost-competitiveness, and energy efficiency for K-12 public schools and community colleges.
- Mass Timber Construction Services End-to-end mass timber construction services including modeling, procurement, erection, design integration, and weather mitigation, delivered in-house and through subsidiary Elevated Construction Services.
- Sustainable Building and Green Certification Services Green building delivery and certification services across LEED, Living Building Challenge, WELL, Net Zero, Cal Green, and JUST Label, including carbon impact reporting and ESG advisory.
- Integrated Solutions / Preconstruction and Lean Construction Services Preconstruction, estimating, scheduling, construction technology, sustainability, and design management services with lean construction methods (Last Planner, A3, Choosing by Advantages, Target Value Design) to enable cost certainty.
- Construction Technology / VDC Services In-house VDC and construction technology services including laser scanning, augmented reality, design collaboration, 3D/4D modeling, clash detection, site logistics, schedule visualization, QA/QC, and project close-out tools.
- Self-Perform Construction Services Self-perform concrete construction (Bradley Concrete) and mass timber structural erection (Elevated Construction Services) delivered as integrated structural building solutions.
- Advanced Technology Sector Construction Construction delivery for technology clients including high-containment labs, autonomous vehicle facilities, clean rooms, pilot plants, manufacturing, data centers, R&D facilities, and central utility plants.
- Healthcare Sector Construction OSHPD-certified healthcare construction including medical office buildings, acute care, emergency departments, behavioral health, oncology, imaging, rehabilitation, and assisted living facilities.
- Life Sciences Sector Construction Construction of wet/dry laboratories, cleanrooms, vivariums, aseptic and cGMP facilities, and office-to-lab conversions for biopharmaceutical and biotech clients.
- Education Sector Construction Construction of K-12 and higher education facilities including new school campuses, classroom and admin buildings, science/tech labs, auditoriums, gymnasiums, and sports facilities.
- Civic / Government Sector Construction Construction of government and civic facilities including administration buildings, animal services centers, navigation centers, aviation facilities, libraries, community centers, emergency operations centers, and parking structures.
- Commercial / Corporate Workplace Construction Construction of corporate campuses, mid-rise offices, seismic upgrades, conference areas, auditoriums, and tenant improvements for enterprise clients.
- Environment, Health & Safety (EHS) Program Comprehensive jobsite EHS program including site-specific safety plans, training, risk registers, near-miss reporting, and mental health support, integrated into project delivery.
Quantifiable outcome
- 15-30% embodied carbon reduction when building with sustainable timber vs. conventional materials
- +9 more outcomes
Companies that use XL Construction
Customer profileNamed customers41 records
Segments6 records
Ideal customer profiles5 records
XL Construction technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration3 records
Feature6 records
XL Construction partnerships and signals
Strategic signalPartnerships
14 partnerships are on record, tiered core and minor.
- Graham GroupcoreXL Construction is a Graham Group Company, providing added stability, financial strength, and new employee ownership opportunities through Graham's equity participation program. The relationship enables expansion of opportunities for people, enhanced service capabilities, and continued investment in construction innovation.
- Elevated Construction ServicescoreSubsidiary company specializing as mass timber structure builders. Manages buyout, design coordination, and procurement of mass timber and seamlessly executes erection in the field. Part of XL's self-perform capabilities.
- Bradley ConcretecoreSubsidiary company providing concrete construction services as part of XL's self-perform capabilities. Works in conjunction with Elevated Construction Services to provide integrated structural building solutions.
- SERA ArchitectscoreDesign-build partner with XL Construction on Google's 1265 Borregas mass timber project, serving as architectural designer. Part of the design-build team assembled by Google for the project.
- MGA (Architecture)coreDesign-build partner with XL Construction on Google's 1265 Borregas mass timber project, serving as architectural designer. Part of the integrated design-build team.
- RMWcoreDesign-build partner collaborating with XL Construction on UCSF's first mass timber project, the UCSF Washington Hospital Cancer Center and related projects.
- Aedis ArchitectscorePartnered with XL Construction and Daedalus Structural Engineering to develop the TimberQuest prefabricated mass timber school construction product. First project was Sacred Heart Schools in Atherton, CA.
- Daedalus Structural EngineeringcorePartnered with XL Construction and Aedis Architects to develop the TimberQuest prefabricated mass timber school construction product. Provided structural engineering expertise for the innovative solution.
- Premier RecycleminorPartnered with Google and XL Construction on the sustainable mass timber building project at 1265 Borregas in Sunnyvale, California, contributing to carbon emissions reduction and responsible material sourcing.
- HPS (Huestis Popovich & Associates)coreDesign-build partner with XL Construction on the John Muir Health MOB & Core Lab project in Concord, CA.
- Arc Tec Inc.minorDesign-build partner on the HPE Labs & Office Relocation project in Milpitas, CA.
- Charles F. BlosziesminorArchitect on the San Mateo County Navigation Center project, pioneering rapid response to homelessness with modular prefabricated construction.
- California Best Buildings ChallengeminorXL Construction joined companies like Genentech and Google in the California Best Buildings Challenge, achieving a 20% reduction in energy, water, and waste at its headquarters in just two years.
- International Living Future InstituteminorXL is a member of the International Living Future Institute, the organization that created the Living Building Challenge, partnering with other organizations committed to raising the bar for sustainability.
Scale indicators23 records
Recent moves7 records
Expansion highlights6 records
XL Construction competitors and assessment
Company assessmentDirect peers
- McCarthy Building Companies: National general contractor with strong healthcare, education, and life-sciences practices and growing Bay Area presence; comparable in delivery methods and sustainability positioning.
- Webcor: San Francisco-based general contractor with strong portfolio across commercial, civic, education, and healthcare in the Bay Area; comparable size and overlapping institutional client base including UCSF and major public agencies.
- Level 10 Construction: Sunnyvale-headquartered general contractor focused on commercial, life sciences, and technology build-outs in the Bay Area; directly comparable in scale, geography, and client mix to XL's Silicon Valley work.
- Suffolk Construction: East Coast-headquartered contractor with growing West Coast presence focused on commercial and life-sciences sectors; competing for similar tech and biotech clients in the Bay Area.
- Hathaway Dinwiddie: San Francisco-based general contractor with deep Bay Area presence across commercial, civic, and healthcare projects; competes for many of the same institutional and public-sector clients as XL.
- Herrero Builders: San Francisco general contractor with comparable mid-size Bay Area presence across healthcare, education, and commercial sectors; direct competitor for many of XL's institutional clients.
- Blach Construction: Silicon Valley-based general contractor with comparable mid-size footprint serving education, civic, and commercial clients in Northern California; similar size and market-segment overlap with XL.
- DPR Construction: National general contractor with deep Bay Area presence across advanced technology, life sciences, healthcare, and higher education — directly competing with XL for marquee projects at Google, Genentech, Kaiser, and similar enterprise clients.
- Swinerton: West Coast-headquartered general contractor with comparable service mix across commercial, healthcare, education, and civic segments; significant Northern California footprint and similar mid-rise commercial and mass timber focus.
Broad incumbents
- Turner Construction: Largest U.S. general contractor with significant Bay Area presence across all of XL's segments; broader portfolio and balance sheet, but less specialization in mass timber and Living Building Challenge projects.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
XL Construction social profiles
Digital presenceXL Construction compliance and trust
Trust signalCompliance5 records
XL Construction financial estimates
Financial estimateRevenue estimate
Valuation estimate
XL Construction leadership team
Management profileNumber of profiles
Profiles12 records
XL Construction subsidiaries and ownership
Company hierarchySubsidiaries2 records
XL Construction funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
XL Construction M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about XL Construction
What does XL Construction do?
XL Construction is a Northern California general contractor that delivers commercial building projects across six market sectors — Advanced Technology, Healthcare, Life Sciences, Education, Civic, and Commercial — using delivery methods including CMAR, Design-Build, Design-Bid-Build, Lease-Lease Back, and Progressive Design-Build. The firm specializes in complex, regulated, and occupied environments and is an early adopter of mass timber construction, including its proprietary DSA-pre-approved TimberQuest prefabricated classroom solution for K-12 and community college projects.
Is XL Construction a public or private company?
XL Construction is a private company. It is classified as corporate owned and is currently operating.
When was XL Construction founded?
XL Construction was founded in 1991. It employs 251 to 500 people.
Where is XL Construction based?
XL Construction is headquartered in Milpitas, United States, in the North America region.
How does XL Construction make money?
Three revenue lines are on record. General Construction Services are the primary driver. The others are design-Build Services and self-Perform Work.
Who are XL Construction's main competitors?
Direct peers on record are McCarthy Building Companies, Webcor, Level 10 Construction, Suffolk Construction, Hathaway Dinwiddie, Herrero Builders, Blach Construction, DPR Construction and Swinerton. Turner Construction is listed as a broad incumbent.
Does XL Construction have an API?
No public API is recorded for XL Construction.
What industry is XL Construction in?
XL Construction's product category is Commercial Construction Services. Its primary akta.pro industry code is IMAFACAA, Office & Corporate Building Construction, with a secondary code of IMAFACAD, Healthcare Facility Construction (Hospitals, Clinics, Labs). Its NAICS code is 23622 and its SIC code is 1540.