What IEA Constructors does

IEA Constructors is a U.S.-based engineering, procurement, and construction (EPC) contractor specializing in utility-scale energy and heavy civil infrastructure projects. Founded in 1977 as RMT, Inc. (originally an environmental and waste management consulting firm), the company formalized construction services in 1994, was acquired by Infrastructure and Energy Alternatives, Inc. in 2013, rebranded as IEA Renewable Energy in 2014 and then IEA Constructors in 2018, and was acquired by MasTec, Inc. (NYSE: MTZ) in 2022 where it operates within the Clean Energy and Infrastructure segment. The company delivers end-to-end services from siting and permitting through engineering, design, procurement, construction, commissioning, and handover.

The company's core offerings span eight service areas: wind power construction, solar power construction, power delivery (transmission lines and substations), repowering of aging wind farms, thermal power, petrochemical and industrial facilities, biomass facilities, and heavy civil infrastructure (highways, bridges, utilities). Notable projects include the 228 MW Bruennings Breeze Wind Farm in Texas (76 Acciona/Nordex turbines), the 300 MW Green Pastures Wind Farm in Texas (first large-scale North American deployment of the Acciona AW 116/3000 turbine), the 112-turbine Colbeck's Corner project with GE, the Kawailoa Wind project on Oahu, Hawaii, the Appling Solar Farm (25 MWAC) for Silicon Ranch, and the 100-mile 230 kV Peetz Interconnect transmission line for FPL Energy. The firm reports over 9,000 MW of energy infrastructure built across 25 states, with annual construction capacity scaled from 500 MW to over 1,100 MW following a 2017 organizational realignment.

IEA Constructors operates a project-based revenue model under direct enterprise sales contracts with energy developers, utilities, and industrial clients, with revenue recognized on a per-contract, one-time basis. The company employs between 1,001 and 5,000 people, including a core traveling workforce of more than 500 skilled craftsmen and professionals who mobilize nationally. GTM motion is direct enterprise field sales targeting utility-scale project owners. Key competitive differentiators include a 40+ year track record, industry-leading safety metrics (EMR 0.51, TRIR 0.17), ability to execute in challenging environments, and the capital and geographic reach afforded by the MasTec parent organization. As a privately held subsidiary, IEA Constructors does not publicly disclose standalone revenue or financials.

Name

IEA Constructors

Legal name

IEA Constructors

Website

https://ieaconstructors.com

Company type

Private

Founded year

1977

Operating status

Operating

Headcount range

1,001–5,000 employees

Short description

IEA Constructors is a U.S.-based EPC contractor delivering end-to-end construction services for utility-scale energy and heavy civil infrastructure projects, serving energy developers, utilities, and industrial clients across 25 states, with over 9,000 MW of energy infrastructure built since 1977.

Ownership category

akta.pro rank

Product category

Energy Infrastructure Construction

NAICS

Utility System Construction (2371)

SIC

Heavy Construction Other Than Bldg Const - Contractors (1600), Water, Sewer, Pipeline, Comm & Power Line Construction (1623), Services-Engineering Services (8711)

akta.pro primary industry

Design-Build / EPC General Contracting (IMAFAAAD)

akta.pro secondary industries

Civil & Site Works EPC (Earthworks, Roads, Drainage, Foundations) (EUAEADAA), Overhead & Underground Collection System Construction (MV/HV Lines, Duct Banks) (EUAEADAG), Transmission line EPC & construction (overhead) (EUADAKAA), Environmental & Permitting Compliance During Construction (Erosion Control, Wildlife Mitigation, Monitoring) (EUAMAFAM), Greenfield Site Origination & Land Acquisition (Leases, Easements, Title) (EUAMAAAA)

Keywords

• EPC construction services
• Wind power construction
• Solar power construction
• Power delivery infrastructure
• Heavy civil construction

Headquarters

HQ city

Boston

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Supply Chain, Infrastructure, Marketing or Sales

Revenue model

1. EPC Construction Services: IEA Constructors generates revenue through end-to-end EPC (Engineering, Procurement, and Construction) contracts for energy and heavy civil infrastructure projects. Revenue is project-based and one-time per contract, with the company handling all aspects from siting and permitting through engineering, design, and construction. Average contract size increased significantly, with annual construction capacity growing from 500 MW to over 1,100 MW installed per year.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels3 records

Core offering

IEA Constructors is an end-to-end EPC (Engineering, Procurement, and Construction) contractor that delivers utility-scale energy and heavy civil infrastructure projects. Its core offerings cover wind power construction, solar power construction, power delivery (transmission and substations), thermal power construction, petrochemical/industrial construction, biomass facility construction, and heavy civil infrastructure, supplemented by siting, permitting, environmental compliance, and engineering/design services. The company executes project-based contracts with energy developers, utilities, and industrial clients across 25 states in the United States.

Product overview

IEA Constructors is an end-to-end EPC (Engineering, Procurement, Construction) contractor providing beginning-to-end construction services for utility-scale energy and heavy civil infrastructure projects. The company operates as a unified construction services platform organized around eight core service areas: Wind Power, Solar Power, Power Delivery, Repowering, Thermal, Petrochemical/Industrial, Biomass, and Heavy Civil. These services are delivered through project-based engagements, with notable projects including wind farms (Bruennings Breeze, Colbeck's Corner, Green Pastures, Kawailoa Wind), solar facilities (Appling Solar Farm, Pilesgrove Solar, Great Bay Solar), and transmission infrastructure (Peetz Interconnect and Transmission). The company has built over 9,000 MW of energy infrastructure across 25 states in the United States.

Differentiator

Problem solved

Functional benefit

Quantifiable outcome

• Over 9,000 MW of energy infrastructure constructed
• +3 more outcomes

Named customers5 records

Segments4 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Infrastructure and Energy Alternatives, Inc. (IEA)coreStrategic or Co-development PartnerIEA Constructors is a subsidiary of Infrastructure and Energy Alternatives, Inc. (IEA), a leading infrastructure construction company with specialized energy and heavy civil expertise. The company was originally acquired by IEA in 2013 when it was RMT's energy business unit, and was renamed IEA Renewable Energy in 2014 and then IEA Constructors in 2018.

Scale indicators5 records

Recent moves4 records

Expansion highlights5 records

Emerging players

• RES (Renewable Energy Systems): RES is a global wind, solar, and energy storage developer/EPC with growing U.S. utility-scale presence; competes with IEA on wind balance-of-plant and increasingly on solar EPC for the same IPP customer base.
• Burns & McDonnell: Burns & McDonnell's Energy group performs EPC and engineer-procure work on transmission, substations, and increasingly renewables, serving many of the same utility customers IEA serves in power delivery and EPC scopes.

Direct peers

• Mortenson Construction: Mortenson's Energy and Infrastructure group is one of the largest U.S. utility-scale wind and solar EPC contractors, with multi-thousand MW of installed capacity and a similar EPC-only model serving the same developer and utility clients (e.g., has built projects in the same 200-300 MW wind class as IEA).
• Wanzek Construction: Wanzek (a MasTec subsidiary operating alongside IEA in the Clean Energy and Infrastructure segment) builds utility-scale wind farms and solar PV plants with a near-identical EPC service model and overlapping customer base in wind/solar construction.
• Blattner Energy (now QCI): Now operating as QCI under Quanta Services, Blattner built over 30,000 MW of wind capacity and is IEA's most direct U.S. competitor in utility-scale wind EPC, addressing the same IPP and utility customers with similar balance-of-plant and self-perform construction services.
• McCarthy Building Companies (Energy): McCarthy's Renewable Energy & Storage group is a major utility-scale solar and energy storage EPC contractor, sharing IEA's project-based model, customer profile (utility-scale developers), and silicon-to-substation scope of services on multi-hundred-MW solar projects.
• Powin Energy / Primoris Renewable Energy: Primoris Renewable Energy is a direct EPC competitor for utility-scale wind/solar and transmission, working with the same developer/IPP customer base on similar balance-of-plant scopes in overlapping U.S. geographies.

Broad incumbents

• Quanta Services: Quanta is the largest pure-play electric and renewable infrastructure services company in North America; through Blattner and its T&D subsidiaries it competes directly with IEA on utility-scale wind EPC and on the transmission construction work IEA performs via Peetz-style projects.
• Kiewit Energy Group: Kiewit's energy and renewables arm executes multi-hundred-MW wind and solar EPC projects in the U.S. and is a frequent head-to-head bidder against IEA for utility-scale renewable and power delivery work.
• Fluor Corporation (Energy Solutions): Fluor's Energy Solutions group executes large-scale EPC for power and renewables; while broader in scope, it competes with IEA for utility-scale wind/solar and thermal EPC contracts and serves overlapping utility and developer clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/iea-constructors-llc
• Xx.com/IEAConst

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

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

M&A

Investments

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

Frequently asked questions about IEA Constructors