EC Source Services
EC Source Services is a U.S. utility infrastructure EPC contractor building and maintaining transmission (up to 765kV), distribution, and substation assets for investor-owned utilities, municipalities, cooperatives, and renewable developers, operating as a wholly owned subsidiary of MasTec (NYSE: MTZ).
- Company typePrivate
- Founded2006
- HeadquartersMesa, United States
- Headcount101–250
- GTM typeB2B
- OfferingServices
What EC Source Services does
EC Source Services, LLC (ECS) is a U.S.-based specialty construction contractor organized in 2006 and operating as a wholly owned subsidiary of MasTec, Inc. (NYSE: MTZ), within MasTec's Transmission and Substation Group. The company delivers engineering, procurement, and construction (EPC) services for electric utility infrastructure, with capabilities spanning transmission lines from 69kV to 765kV, overhead and underground distribution systems, and full substation and switchyard construction. It is certified to perform live-line work up to 500kV and offers emergency restoration services for unplanned outages. Operations are supported by two integrated subsidiaries: T&D Power, which provides IBEW union labor and specialized extreme-duty equipment, and Energy Environmental Group, which handles environmental permitting, planning, inspections, and restoration.
EC Source serves investor-owned utilities, municipalities and electric cooperatives, and renewable energy developers through direct enterprise field sales and joint-venture partnerships (notably ECSL with Sargent & Lundy). Revenue is generated entirely through project-based, quote-driven EPC contracts — typically fixed-price or cost-plus — recognized upon project completion milestones. Pricing is custom-tailored to each project's scope and is not publicly disclosed. The company has executed reference projects including a 70-mile 765kV line in Indiana for Pioneer Transmission (a Duke/AEP joint venture), a 192-mile 345/161kV double-circuit line with three substations in Iowa for MidAmerican Energy, a 168-mile 345kV line in Utah for PacifiCorp, and the 155-mile 345kV Western Spirit line delivering 800 MW of wind energy in New Mexico for Pattern Energy.
The company holds NMSDC minority-controlled certification through its parent and operates five offices across the U.S. (Houston headquarters plus Mesa AZ, Sacramento CA, Gaffney SC, and Schertz TX). It has 101–250 employees and no externally disclosed revenue or funding history, as it is fully capitalized and controlled by MasTec. The competitive position rests on a safety-first operating culture, high-voltage construction certification, the ability to mobilize hundreds of personnel across multi-spread concurrent builds, and access to MasTec's balance sheet for bonding large, multi-year EHV projects.
EC Source Services firmographics
Firmographics- Name
- EC Source Services
- Legal name
- EC Source Services, LLC
- Website
- https://ecsourceservices.com
- Company type
- Private
- Founded year
- 2006
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- EC Source Services is a U.S. utility infrastructure EPC contractor building and maintaining transmission (up to 765kV), distribution, and substation assets for investor-owned utilities, municipalities, cooperatives, and renewable developers, operating as a wholly owned subsidiary of MasTec (NYSE: MTZ).
- Ownership category
- akta.pro rank
EC Source Services industry classification
Industry- Product category
- Utility Infrastructure Construction
- NAICS
- Electric Power Transmission, Control, and Distribution (22112), Electric Power Generation, Transmission and Distribution (2211)
- SIC
- Electric Services (4911), Electric, Gas & Sanitary Services (4900)
- akta.pro primary industry
- Transmission line EPC & construction (overhead) (EUADAKAA)
- akta.pro secondary industries
- Distribution Substations & Switching Stations (MV) EPC (EUAEACAC), Underground transmission & distribution cable EPC (civil + cable install) (EUADAKAB), Substation & Interconnection EPC (Collector/POI Substations, Switchyards) (EUAEADAC), FACTS / Reactive Power & Power Quality Systems EPC (SVC/STATCOM, Capacitor Banks) (EUAEABAE)
Keywords
Where EC Source Services is headquartered
LocationHeadquarters
- HQ city
- Mesa
- HQ country
- United States
- HQ region
- North America
Offices5 records
Markets served
EC Source Services business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Supply Chain, Marketing or Sales, Technology or R&D
Revenue model
- Infrastructure Construction Services: Project-based revenue from engineering, procurement, and construction (EPC) contracts for transmission, distribution, and substation projects. Revenue is generated through large-scale infrastructure projects for utilities, typically structured as fixed-price or cost-plus contracts with multi-year project timelines.
- Construction Solutions Services: Construction services including overhead and underground transmission systems, distribution work, substations, and switchyards. Revenue recognized upon project completion milestones.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
EC Source Services product offering
Product offeringCore offering
EC Source Services is a construction solution provider that delivers EPC (Engineering, Procurement, and Construction) services for electric utility infrastructure, including overhead and underground transmission systems (69kV to 765kV), distribution systems, substations, switchyards, foundations, and emergency power restoration. The company serves investor-owned utilities, municipalities, cooperatives, and renewable energy developers across North America with IBEW labor and specialized equipment through subsidiaries T&D Power and Energy Environmental Group.
Product overview
EC Source Services is a utility infrastructure construction company offering a unified portfolio of construction services for transmission, distribution, and substation projects. The company's core offerings include Transmission Line Construction & Repair (69kV to 765kV), Distribution Construction & Repair, and Substation Construction. These are complemented by EPC (Engineering, Procurement, and Construction) services and Emergency Restoration capabilities. The company operates through two subsidiaries: T&D Power (providing union labor workforce) and Energy Environmental Group (providing environmental compliance services). The products work together to deliver full-scope infrastructure solutions from engineering through construction to commissioning.
Differentiator
Problem solved
Functional benefit
Products and services
- Transmission Line Construction & Repair Construction and repair of medium to extra-high voltage transmission lines (69kV to 765kV) for utilities across North America, including overhead and underground systems, live-line work up to 500kV, reconductoring, rebuilding energized or de-energized structures, and emergency restoration. Targets investor-owned utilities, municipalities, and cooperatives.
- Distribution Construction & Repair Overhead and underground distribution construction including pole change-outs, relocations, smart grid installations, storm hardening, and emergency restoration for investor-owned utilities, municipalities, and cooperatives.
- Substation Construction Complete substation and switchyard construction including transformer installation, circuit switchers, breakers, bus systems, control buildings, protection systems, testing, and commissioning services for utilities.
- EPC (Engineering, Procurement, and Construction) Turnkey EPC services for transmission, distribution, and substation projects of all sizes, coordinating engineering, material procurement, and construction execution.
- Emergency Restoration Rapid response services for unplanned transmission and distribution outages, delivering restoration for investor-owned utilities, municipalities, and cooperatives.
- Foundation Construction Civil and foundation construction services including concrete caissons, direct embed, grillage foundations, and drilled pier installations for transmission structures.
- T&D Power Union labor subsidiary offering overhead and underground transmission and distribution systems, substations, and foundation construction with IBEW labor and specialized extreme-duty equipment for utility infrastructure projects.
- Energy Environmental Group Environmental services subsidiary providing permitting, planning, and inspections for construction projects, including environmental restoration work such as the Western Spirit 155-mile 345kV transmission line completed with zero environmental violations.
Quantifiable outcome
- Zero environmental violations during Western Spirit 155-mile 345kV transmission project
- +2 more outcomes
Companies that use EC Source Services
Customer profileNamed customers9 records
Segments3 records
Ideal customer profiles3 records
EC Source Services technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature4 records
EC Source Services partnerships and signals
Strategic signalPartnerships
Four partnerships are on record, tiered core.
- Sargent & LundycoreJoint venture partnership (ECSL) combining EC Source's construction capabilities with Sargent & Lundy's engineering and design expertise for utility transmission projects. The joint venture secured AEP projects including the Yellowjacket-Junction 28-mile transmission line rebuild and 40.5-mile transmission line upgrade south of San Antonio.
- T&D PowercoreUnion affiliate subsidiary offering IBEW labor for building distribution and transmission lines, substations, and foundations. T&D Power provides specialized union workforce and extreme-duty equipment capabilities for utility infrastructure projects.
- Energy Environmental GroupcoreSubsidiary providing environmental permitting, planning, and inspections for construction projects. Successfully completed environmental restoration on the Western Spirit 155-mile 345kV transmission line with zero environmental violations during the two-year project.
- MasTec, Inc.coreParent company (NYSE: MTZ) and one of the world's largest providers of infrastructure services. EC Source is a wholly owned subsidiary and division of MasTec Transmission and Substation Group (TSG).
Scale indicators3 records
Recent moves6 records
Expansion highlights5 records
EC Source Services competitors and assessment
Company assessmentEmerging players
- Sargent & Lundy: Sargent & Lundy is a major power engineering firm and EC Source's JV partner (ECSL) for combined engineering and construction delivery. Comparable in transmission EPC delivery but historically engineering-led; the JV demonstrates how the two models are converging in the market.
- Burns & McDonnell: Burns & McDonnell is a major employee-owned engineering, architecture, and construction firm with significant transmission and substation EPC practice. Competes on combined engineering and construction delivery for utilities, similar to the ECSL JV model.
Broad incumbents
- EMCOR Group: EMCOR Group (EME) is a large publicly traded mechanical/electrical construction and facilities services firm with utility-scale T&D exposure. While broader in scope, it competes on substation and large electrical infrastructure projects for utility clients.
- MasTec Power Delivery: MasTec Power Delivery is the parent company's broader T&D operating segment, of which EC Source is a part. Provides overlapping transmission, distribution, and substation services at larger scale with broader geographic coverage; EC Source effectively competes and collaborates within this internal segment.
Direct peers
- Quanta Services: Quanta Services is the largest publicly traded T&D specialty contractor in North America, offering transmission, distribution, and substation EPC services to the same investor-owned, municipal, and cooperative utility customers. Directly comparable in core capability and voltage range (up to 765kV) and competes head-to-head on the same large EHV project bids.
- Henkels & McCoy: Henkels & McCoy is a privately held T&D infrastructure contractor offering transmission, distribution, substation, and communication infrastructure services across the US. Directly comparable in target customers (IOUs, municipalities, co-ops) and service scope including live-line work and emergency restoration.
- MYR Group: MYR Group is a publicly traded specialty contractor (MYRG) providing transmission, distribution, and substation construction across the US, with similar IBEW union workforce and voltage-class capabilities. Directly competes on the same utility RFPs and offers comparable EPC scope for T&D infrastructure.
- Pike Electric: Pike Electric (now part of MasTec) provides distribution and transmission construction services with similar union labor model. Closely comparable in customer base and emergency restoration capabilities, and effectively a sibling entity within MasTec competing for overlapping work.
- Primoris Services Corporation: Primoris (PRIM) operates a Utilities segment providing transmission, distribution, and substation construction services across the US. Competes for similar utility EPC projects and serves the same IOU, municipal, and cooperative customer base.
Regional players
- Power Engineering Services: Power Engineering Services is a privately held T&D contractor operating in the western and southwestern US with comparable transmission and substation capabilities. Regional overlap with several of EC Source's core markets (Arizona, California, Texas).
Market position
Weaknesses5 records
Competitive moat6 records
Key highlights1 record
Customer concentration
EC Source Services social profiles
Digital presenceEC Source Services compliance and trust
Trust signalCompliance1 record
EC Source Services financial estimates
Financial estimateRevenue estimate
Valuation estimate
EC Source Services leadership team
Management profileNumber of profiles
Profiles4 records
EC Source Services subsidiaries and ownership
Company hierarchySubsidiaries2 records
EC Source Services funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
EC Source Services 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 EC Source Services
What does EC Source Services do?
EC Source Services is a construction solution provider that delivers EPC (Engineering, Procurement, and Construction) services for electric utility infrastructure, including overhead and underground transmission systems (69kV to 765kV), distribution systems, substations, switchyards, foundations, and emergency power restoration. The company serves investor-owned utilities, municipalities, cooperatives, and renewable energy developers across North America with IBEW labor and specialized equipment through subsidiaries T&D Power and Energy Environmental Group.
Is EC Source Services a public or private company?
EC Source Services is a private company. It is classified as corporate owned and is currently operating.
When was EC Source Services founded?
EC Source Services was founded in 2006. It employs 101 to 250 people.
Where is EC Source Services based?
EC Source Services is headquartered in Mesa, United States, in the North America region.
How does EC Source Services make money?
Two revenue lines are on record. Infrastructure Construction Services are the primary driver. The others are construction Solutions Services.
Who are EC Source Services's main competitors?
Emerging players on record are Sargent & Lundy and Burns & McDonnell. Broad incumbents are EMCOR Group and MasTec Power Delivery. Direct peers are Quanta Services, Henkels & McCoy, MYR Group, Pike Electric and Primoris Services Corporation. Power Engineering Services is listed as a regional player.
Does EC Source Services have an API?
No public API is recorded for EC Source Services.
What industry is EC Source Services in?
EC Source Services's product category is Utility Infrastructure Construction. Its primary akta.pro industry code is EUADAKAA, Transmission line EPC & construction (overhead), with a secondary code of EUAEACAC, Distribution Substations & Switching Stations (MV) EPC. Its NAICS code is 22112 and its SIC code is 4911.