Rosendin
Rosendin is the largest employee-owned US electrical contractor (founded 1919, $5.6B FY2025 revenue), delivering design-build, prefabrication, and modular power solutions for hyperscale data centers, semiconductor fabs, and utility-scale renewable projects across 23 US offices.
- Company typePrivate
- Founded1919
- HeadquartersSan Jose, United States
- Headcount5,001–10,000
- GTM typeB2B
- OfferingServices
What Rosendin does
Rosendin Electric, founded in 1919 in San Jose, California, is the largest employee-owned electrical contractor in the United States, operating as a wholly-owned subsidiary of Rosendin Holdings under a 100% ESOP completed in 2000. The company delivers electrical construction, communications, instrumentation and controls, prefabrication, and modular power solutions across ten primary verticals — data centers, semiconductor fabs, energy and renewables, commercial, healthcare, entertainment, transportation, education, institutional, and biotech/pharma. Its core technical capabilities center on Building Information Modeling (220+ in-house BIM staff; $4B+ of work executed at LOD 300–500 since 2015) and the Modular Power Solutions subsidiary, which operates 2M+ square feet of manufacturing space with 7,000+ MW of annual fabrication capacity and 4M+ electrician manhours.
Rosendin's business model is project-based enterprise construction, with revenue generated through fixed-price, time-and-materials, and design-build contracts on complex, mission-critical facilities. The go-to-market is direct enterprise field sales targeting owners, developers, general contractors, and design teams on hyperscale data centers, semiconductor fabs, and utility-scale renewables. Cumulative disclosed metrics include $7.5B of data center work, 15+ GW of deployed data center power, $1.5B+ in semiconductor electrical services, 2,000+ semiconductor tools installed, 32 GW of renewable energy delivered, 10+ GWh of battery energy storage, 7.1+ GW of solar, and 151 substations, supported by 23 offices across the United States plus Canada and Mexico reach via MPS.
The company is pursuing expansion in three reinforcing directions: deepening its data center and semiconductor franchise (Phinergy aluminum-air backup power partnership, 2025; co-president leadership restructuring, Feb 2026; Hanover County, VA logistics expansion, March 2026; Mountain West HQ in Chandler, AZ, May 2026), automating field execution (ULC Technologies autonomous solar installation robot partnership), and reinforcing its talent base through IBEW union apprenticeship pipelines, the Electrical Training Alliance, and university recruiting. FY2025 revenue is disclosed at $5.6B.
Rosendin firmographics
Firmographics- Name
- Rosendin
- Legal name
- Rosendin Electric Inc.
- Website
- https://rosendin.com
- Company type
- Private
- Founded year
- 1919
- Operating status
- Operating
- Headcount range
- 5,001–10,000 employees
- Short description
- Rosendin is the largest employee-owned US electrical contractor (founded 1919, $5.6B FY2025 revenue), delivering design-build, prefabrication, and modular power solutions for hyperscale data centers, semiconductor fabs, and utility-scale renewable projects across 23 US offices.
- Ownership category
- akta.pro rank
Rosendin industry classification
Industry- Product category
- Electrical Construction Services
- NAICS
- Electrical Contractors and Other Wiring Installation Contractors (23821), Electrical Equipment Manufacturing (33531)
- SIC
- Electrical Work (1731)
- akta.pro primary industry
- Electrical Contracting & Wiring (IMAFALAA)
- akta.pro secondary industry
- Energy & Renewables Specialty Contracting (Solar PV, Storage, EV Charging) (IMAFALAJ)
Keywords
Where Rosendin is headquartered
LocationHeadquarters
- HQ city
- San Jose
- HQ country
- United States
- HQ region
- North America
Offices24 records
Markets served
Rosendin business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales
Revenue model
- Electrical Construction Services: Project-based electrical construction services for complex facilities including data centers, semiconductor fabs, commercial buildings, healthcare facilities, entertainment venues, transportation infrastructure, and renewable energy projects. Revenue is generated through fixed-price contracts, time-and-materials agreements, and design-build arrangements.
- Modular Power Solutions: Design, manufacture, and installation of prefabricated electrical rooms and integrated modular power solutions for data centers and critical facilities. Subsidiary of Rosendin Holdings providing additional revenue through manufacturing and installation of modular electrical systems.
- Service & Maintenance: Ongoing service and maintenance contracts providing 24/7 emergency response capabilities across all operating regions.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Project-based construction services - quote required |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels7 records
Rosendin product offering
Product offeringCore offering
Rosendin is the largest employee-owned electrical contractor in the United States, delivering project-based electrical construction services for complex facilities including data centers, semiconductor fabs, hospitals, stadiums, airports, and renewable energy projects. The company designs, prefabricates, and installs electrical and communications systems through its direct workforce, IBEW union partnership, and Modular Power Solutions subsidiary, with $5.6B in annual revenue across more than 8,000 employees.
Differentiator
Problem solved
Functional benefit
Products and services
- Electrical Construction Services
- Modular Power Solutions
- Service & Maintenance
- Renewable Energy Construction
- Semiconductor Electrical Services
Quantifiable outcome
- 97% customer satisfaction rating for hitting construction milestones, customer satisfaction, and quality in semiconductor projects
- +5 more outcomes
Companies that use Rosendin
Customer profileNamed customers9 records
Segments10 records
Ideal customer profiles4 records
Rosendin technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration6 records
Feature5 records
Rosendin partnerships and signals
Strategic signalPartnerships
Eight partnerships are on record, tiered core.
- Navy SEAL FoundationcoreOfficial partnership formalizing a decade-long relationship with the Navy SEAL Foundation. Partnership focuses on year-round engagement to provide resources, transition support, and care for Navy SEALs and their families. Rosendin hosts annual golf tournament and auction benefiting the foundation, which has raised over $200,000 annually.
- PhinergycorePartnership with Israeli power generation firm Phinergy to promote aluminum-air backup power systems for the US data center market. The solution aims to replace diesel generators with a low-carbon alternative capable of providing multi-day resilience and delivering around 10 MWh per cubic meter of storage.
- HighwirecoreImplementation of Highwire contractor prequalification platform to assess and mitigate safety, financial, quality, and sustainability risks for all trade partners. Subcontractors are required to answer questions and upload documents including financial statements, insurance information, safety manuals, and OSHA 300A forms through the platform.
- International Brotherhood of Electrical Workers (IBEW)coreUnion partnership through which Rosendin hires electricians. Membership in the union is optional in most locations. Partnership coordinated through Joint Apprenticeship Training Committees (JATCs) sponsored by local IBEW chapters and the National Electrical Contractors Association (NECA), known as the Electrical Training Alliance.
- Electrical Training AlliancecorePartnership between IBEW and NECA creating the Electrical Training Alliance, which blends classroom and online learning to improve the apprenticeship experience. Coordinates Joint Apprenticeship Training Committees (JATCs) across a nationwide network.
- National Safety Council (NSC)corePartnership with the National Safety Council to build an industry-wide solution to transform how serious injury risk evaluation is approached, with focus on eliminating all serious injury incidents on job sites nationwide. Rosendin leaders are partnering with NSC to drive meaningful change in risk management.
- ULC TechnologiescorePartnership to develop an autonomous robot for photovoltaic (PV) solar module installation at solar farms. The robot autonomously handles heavy lifting and placement of modules, reducing physical strain on workers and increasing installation speed. Rosendin is seeking a manufacturer to commercialize and mass-produce the robotic system.
- Modular Power SolutionscoreWholly-owned subsidiary of Rosendin Holdings designing and manufacturing custom, large-scale, fully-integrated solutions for critical power applications across the USA, Canada, and Mexico. Partners with industry leaders to craft integrated systems for data centers, high-voltage, medium-voltage, renewables, energy storage (BESS), and other markets.
Scale indicators17 records
Recent moves8 records
Expansion highlights6 records
Rosendin competitors and assessment
Company assessmentEmerging players
- Hypower: Privately-held electrical contractor with growing presence in data center, utility, and commercial markets. An emerging direct competitor on hyperscale and utility-scale electrical scopes where Rosendin is also expanding.
Direct peers
- MYR Group: Public specialty contractor providing electrical construction (TSI and CSI subsidiaries) on transmission, distribution, commercial, and industrial projects. Direct overlap on commercial/industrial electrical contracting and renewable energy construction with comparable union and non-union operating models.
- EMCOR Group: Large publicly-traded mechanical and electrical construction services provider with similar exposure to data centers, semiconductor fabs, healthcare, and commercial projects. EMCOR's electrical segment (including MILLER Electric Company and others) directly competes with Rosendin on hyperscale and mission-critical builds at comparable scale.
- Faith Technologies: Large privately-held electrical and specialty systems contractor serving data centers, industrial, healthcare, and renewable energy. Directly comparable on prefabrication capabilities, MEP scope, and mission-critical facility work with similar national reach.
- Power Design: Large privately-held electrical contractor specializing in multifamily, commercial, and increasingly data center projects. Comparable on prefabrication-driven electrical delivery and large project scale, though with a more multifamily-skewed base.
- Helix Electric: Privately-held electrical contractor specializing in data centers, biotech, healthcare, and large commercial projects. Strong direct overlap with Rosendin on hyperscale data center work, particularly in the Western U.S.
- MMR Group: Privately-held open-shop electrical and instrumentation contractor serving data centers, semiconductor, petrochemical, and industrial markets. Competes with Rosendin on semiconductor fab construction and large-scale industrial electrical scope.
- Cupertino Electric: Privately-held electrical contractor focused on data centers, semiconductor fabs, and large commercial projects — a direct competitor for the same hyperscale and chip-fab electrical scopes that drive Rosendin's highest-growth verticals.
- IES Holdings: Electrical and mechanical contractor with national footprint across data centers, industrial, commercial, and infrastructure segments. Competes with Rosendin in mission-critical electrical scopes for hyperscale data centers and industrial facilities at similar project scale.
Broad incumbents
- Quanta Services: Largest specialty contractor in North America with a much broader infrastructure portfolio spanning electric power transmission, telecom, renewables, and pipeline construction. Overlaps with Rosendin on utility-scale solar, substation, and grid integration work but is much more diversified across upstream energy infrastructure.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat6 records
Key risks5 records
Key highlights7 records
Customer concentration
Rosendin social profiles
Digital presenceRosendin financial estimates
Financial estimateRevenue estimate
Valuation estimate
Rosendin leadership team
Management profileNumber of profiles
Profiles15 records
Rosendin subsidiaries and ownership
Company hierarchySubsidiaries2 records
Rosendin funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Rosendin 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 Rosendin
What does Rosendin do?
Rosendin is the largest employee-owned electrical contractor in the United States, delivering project-based electrical construction services for complex facilities including data centers, semiconductor fabs, hospitals, stadiums, airports, and renewable energy projects. The company designs, prefabricates, and installs electrical and communications systems through its direct workforce, IBEW union partnership, and Modular Power Solutions subsidiary, with $5.6B in annual revenue across more than 8,000 employees.
Is Rosendin a public or private company?
Rosendin is a private company. It is classified as management employee owned and is currently operating.
When was Rosendin founded?
Rosendin was founded in 1919. It employs 5,001 to 10,000 people.
Where is Rosendin based?
Rosendin is headquartered in San Jose, United States, in the North America region.
How does Rosendin make money?
Three revenue lines are on record. Electrical Construction Services are the primary driver. The others are modular Power Solutions and service & Maintenance.
Who are Rosendin's main competitors?
Hypower is listed as an emerging player. Direct peers are MYR Group, EMCOR Group, Faith Technologies, Power Design, Helix Electric, MMR Group, Cupertino Electric and IES Holdings. Quanta Services is listed as a broad incumbent.
Does Rosendin have an API?
No public API is recorded for Rosendin.
What industry is Rosendin in?
Rosendin's product category is Electrical Construction Services. Its primary akta.pro industry code is IMAFALAA, Electrical Contracting & Wiring, with a secondary code of IMAFALAJ, Energy & Renewables Specialty Contracting (Solar PV, Storage, EV Charging). Its NAICS code is 23821 and its SIC code is 1731.