What Loenbro does

Loenbro is a U.S. multi-discipline industrial services contractor headquartered in Westminster, Colorado, founded in 2000. The company provides vertically integrated construction, maintenance, fabrication, and inspection services across seven core service lines: Critical Electrical, Mechanical & Structural, Fabrication, Soft Craft, Underground Maintenance & Installation, Inspection, and Service & Maintenance. Its technology platform rests on AISC-certified steel fabrication (500,000+ sq ft across multiple facilities with ASME U/R/PP stamps), UL-certified automation and controls panel fabrication, mission-critical electrical redundancy systems (dual feed, UPS, ATS, PLC/SCADA/HMI), and turnkey data center execution with a documented delivery pace of 12MW every six weeks.

Loenbro serves 15+ end markets including mission critical/data centers, oil & gas, federal, power generation, mining, semiconductors, food & beverage, pharmaceutical, renewable energy, and water solutions. Customers include hyperscale data center operators (one confidential client mobilizing 250+ electricians on a single build), the U.S. Army Corps of Engineers, Department of Defense, Department of Energy, Federal Reserve, U.S. Mint, and various Fortune 500 industrial operators. Projects range from $100,000 to $80 million, delivered via fixed-price and time-and-materials contracts.

The go-to-market is sales-led enterprise field sales, with no channel partners, focused on relationship-based selling, federal RFP responses, and direct outreach. The company operates from 31+ U.S. offices across the Mountain West, Southwest, Texas, the Midwest, the Mid-Atlantic, and the Pacific Northwest. Loenbro is privately held, was acquired by Kohlberg from Braemont Capital in December 2025, and consolidated its acquired brands (Switch Electric, Revolution Industrial, Stewart Electric, Weifield Group) under a unified Loenbro identity in March 2026.

Name

Loenbro

Legal name

Loenbro, LLC

Website

https://loenbro.com

Company type

Private

Founded year

2000

Operating status

Operating

Headcount range

251–500 employees

Short description

Loenbro is a U.S. multi-discipline industrial services contractor delivering integrated electrical, mechanical, structural, fabrication, soft craft, underground, and inspection services to data center, oil & gas, federal, power generation, and industrial customers across 31+ locations nationally.

Ownership category

akta.pro rank

Headquarters

HQ city

Westminster

HQ country

United States

HQ region

North America

Offices32 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Infrastructure, Supply Chain, Technology or R&D, Marketing or Sales

Revenue model

1. Project-Based Professional Services: Loenbro generates revenue through fixed-price and time-and-materials contracts for industrial construction, maintenance, and fabrication services. Projects range from $100,000 to $80 million, encompassing multi-scope service offerings across electrical, mechanical, structural, and specialty services. Revenue is project-driven with varying contract sizes and durations.
2. Service & Maintenance Contracts: Ongoing maintenance agreements providing 24-hour emergency service, preventive maintenance, and facility support with custom contracts tailored to customer operational needs.

Go-to-market motion2 records

Distribution channels1 record

Marketing channels8 records

Core offering

Loenbro is a multi-discipline industrial services contractor delivering critical electrical, mechanical & structural, fabrication, soft craft, underground maintenance & installation, and inspection services for energy, manufacturing, mining, federal, and mission-critical data center infrastructure projects. The company operates as a single-source construction lifecycle partner with 31+ U.S. offices and 500,000+ sq ft of AISC/ASME-certified fabrication capacity, executing project-based contracts ranging from $100,000 to $80 million for enterprise and government customers.

Product overview

Loenbro is a full-range industrial and mission-critical infrastructure services company operating as a single unified platform (following its 2026 'One Loenbro' rebranding that consolidated Switch Electric, Revolution Industrial, Stewart Electric, and Weifield Group Electrical Contracting). The company provides vertically integrated services organized around seven core offerings: Critical Electrical Services (encompassing Data Center Electrical Services, Electrical Infrastructure Installation, Automation/Communication/Controls, and Electrical Maintenance modules), Mechanical & Structural Services (including Process Piping, Structural, Civil & Concrete, and Fabrication sub-modules), Soft Craft Services, Underground Maintenance & Installation, Inspection Services, and Service & Maintenance. This integrated model enables Loenbro to serve as a single-source construction lifecycle partner across the entire project lifecycle from ground-up construction through maintenance and inspection, with specialized focus on mission-critical markets including data centers, power generation, oil & gas, mining, and manufacturing. The company operates from 31+ locations across the U.S. and serves 15+ industries including Advanced Manufacturing, Aviation, Chemical, Distribution, Federal, Food & Beverage, Healthcare, Mining & Metals, Oil & Gas, Pharmaceutical, Power Generation, Renewable Energy, Semiconductors, and Water Solutions.

Differentiator

Problem solved

Functional benefit

Products and services

• Critical Electrical Services Turnkey industrial electrical services for new plant construction or expansion of existing facilities, including dual feed and parallel power distribution systems, emergency/backup power, redundant control systems, critical load segmentation, arc flash mitigation, and full industrial electrical testing and commissioning for data centers, manufacturing, oil and gas, and power generation facilities.
• Mechanical & Structural Services Full-spectrum industrial mechanical and structural services including process piping, structural steel, fabrication, civil & concrete, and mechanical equipment setting, providing turnkey solutions from design through installation across energy, manufacturing, mining, and infrastructure customers.
• Fabrication Services Custom fabrication including piping spools, pressure vessels, structural steel components, electrical enclosures, LACT units, and modular skids with over 500,000+ sq ft of fabrication space, certified under AISC Complex Coatings Endorsement, ASME U-Stamp, R-Stamp, and PP-Stamp standards.
• Soft Craft Services Broad array of soft craft services including scaffolding, insulation, coatings, abatement, refractory, heat tracing, fireproofing, and removable soft pads delivered with a multi-skilled craft approach to reduce downtime for industrial facility maintenance customers.
• Underground Maintenance & Installation Installation, maintenance, and inspection services for underground pipeline systems including cross-country pipelines, well connects and flowlines, launcher/receiver fabrication, pigging and hydrostatic testing, right-of-way restoration, and emergency response for oil & gas midstream and downstream customers.
• Inspection Services Industrial inspection services including non-destructive testing (NDT), heat treatment services, pipeline integrity management, facility integrity management, and construction field management executed under the NPHASE quality management program.
• Service & Maintenance Ongoing service and maintenance offerings including 24-hour emergency service, commercial electrical services, EMP compliance solutions, energy efficiency services, facility electrical controls, generator/emergency/switchgear/ATS services, medium voltage expertise, new construction/remodel/buildout, and safety training.

Quantifiable outcome

• 12MW commissioned every 6 weeks on data center projects
• +4 more outcomes

Named customers12 records

Segments10 records

Ideal customer profiles6 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Four partnerships are on record, tiered core and supporting.

• Revolution IndustrialcoreStrategic or Co-development PartnerAcquired in January 2025, Revolution Industrial is a diversified industrial services provider based in Arizona expanding Loenbro's service capabilities in the Southwest U.S. The acquisition enhances offerings in critical infrastructure and industrial markets. Led by President Chris Nay who became President of Loenbro's Southwest Region.
• Stewart ElectriccoreStrategic or Co-development PartnerAcquired in April 2025, Stewart Electric is a Nevada-based electrical services provider specializing in data center market services. The acquisition enhances Loenbro's capacity and geographic reach in mission critical markets across the United States.
• Weifield Group Electrical ContractingcoreStrategic or Co-development PartnerAcquired in July 2025, Weifield Group is an electrical services provider that was grown to $250+ million multi-regional electrical contracting business by former CEO Seth Anderson, who became President of Loenbro's South Region. The acquisition strengthened Loenbro's presence in data center and critical infrastructure markets.
• Switch ElectricsupportingStrategic or Co-development PartnerAcquired in October 2021, Switch Electric was an early acquisition by PE-backed Loenbro as part of its expansion strategy in electrical services.

Scale indicators7 records

Recent moves8 records

Expansion highlights5 records

Direct peers

• Quanta Services: Quanta Services is the largest pure-play infrastructure services firm in North America, providing electric power, pipeline, and renewable energy construction services to utilities and energy customers. Direct overlap with Loenbro's critical electrical, pipeline, and infrastructure construction offerings; Quanta operates at materially larger scale and serves similar hyperscaler/utility end markets.
• EMCOR Group: EMCOR Group is a leading provider of electrical and mechanical construction, building and industrial services, with major data center and industrial facility exposure. Closely aligned with Loenbro's integrated multi-discipline model across electrical, mechanical, and fabrication; both compete for similar mission-critical and industrial customers.
• MYR Group: MYR Group is one of the largest U.S. specialty electrical contractors, serving transmission, distribution, commercial, and industrial markets including data centers. Direct comparability with Loenbro's critical electrical and data center electrical services; both compete for similar hyperscale data center build-out work.
• MasTec: MasTec is a diversified infrastructure construction provider across power delivery, communications, oil & gas, and clean energy. Loenbro's power generation, oil & gas, federal, and renewable energy service lines mirror MasTec's end-market exposure; both operate as multi-discipline industrial contractors.
• Primoris Services: Primoris Services provides infrastructure construction across utilities, energy, and pipelines, with significant electrical and pipeline capabilities. Comparable to Loenbro in oil & gas pipeline work, power generation, and industrial electrical/mechanical services for similar end customers.
• IES Holdings: IES Holdings provides electrical and mechanical infrastructure services to commercial, industrial, and data center customers. Direct overlap with Loenbro in mission-critical electrical services and data center build-out; similar integrated services model and customer base.
• Rosendin Electric: Rosendin is one of the largest U.S. employee-owned electrical contractors with deep data center, mission-critical, and renewable energy exposure. Closely comparable to Loenbro's data center electrical services and Stevenson's mission-critical focus; both compete for hyperscaler awards.
• Faith Technologies: Faith Technologies is a national electrical and specialty systems contractor with significant mission-critical data center and industrial presence. Comparable to Loenbro in hyperscale data center electrical build-out and integrated electrical/mechanical delivery.
• Team Industrial Services: Team Inc. is a leading provider of specialty industrial services including inspection, NDT, heat treatment, and pipeline integrity, closely mirroring Loenbro's Inspection Services and NPHASE-quality pipeline integrity offerings to refinery, power, and petrochemical customers.

Broad incumbents

• BrandSafway: BrandSafway is a global leader in access, scaffolding, insulation, and related industrial services. Loenbro's General Counsel previously served as EVP/General Counsel/CCO at BrandSafway during a period when it grew from $350M to $5B in revenue through M&A. Direct overlap on soft craft, scaffolding, and industrial maintenance services.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

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Compliance10 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles16 records

Subsidiaries4 records

Funding overview

Funding rounds1 record

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A5 records

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Loenbro