About us

40+ Years of engineering with distinction

25+ years of extraordinary execution

As one of the country’s leading power utility consulting design firms, ECI operates from more than 37 offices across North America, continuously expanding to serve the needs of our clients.

Electrical Consultants Inc and EPC Services Company logos in black.

40+

Years in Business

1200+

Team Members

37+

Offices


500+

Power Utility Project Builds via EPCS

30k+

Power Utility Engineering Designs & Consults

50

States of Project Work


Electrical Consultants Inc. (ECI) was incorporated in 1985. Our in-house portfolio of services, including overhead and underground transmission engineering, substation and switchyard design, protection, automation & communication systems, industrial power systems design, land survey and construction staking, right-of-way services, environmental planning, project management, construction management, and procurement services have provided a key resource for hundreds of utilities. ECI ranks among the largest power delivery engineering firms in North America. We bring comprehensive experience in power delivery services through 500 kV to our clients.

Our team members are our greatest asset

Our range of professional staff assures that your projects are completed on time and on budget.

Our team has highly specialized and unique experience that ensure prompt and qualified responses to any project work scope item, whether it be to answer a simple design question, or provide guidance on complex, regional issues.

Our cross-disciplined engineering approach has resulted in millions of dollars of savings for our clients and our employee-owned structure ensures that personal ownership and commitment are at the foundation of all successful projects.

EXCELLENCE ACROSS NORTH AMERICA

Our 37+ offices provide the ability to partner on projects across the US and Canada.

A TImeline of Electrical Consultants, Inc.

From our humble beginnings in Montana, discover how Electrical Consultants has grown exponentially and contributed to some of the most critical power delivery projects throughout the United States and abroad.

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Billings, Montana landscape, circa 1990s.

1985

Electrical Consultants, Inc. (ECI) is incorporated as a Montana Corporation
Old photo of transmission line project near King Avenue in Billings, Montana.

1990

R.L. (Dick) McComish, P.E. Joins ECI as Engineering Manager
Crew building part of a substation, circa 1990s.

1990

ECI begins establishing long-lasting client partnerships with small utilities
Salt Lake City, Utah metro landscape.

1993

ECI opens a regional office in Salt Lake City, Utah
Tucson, Arizona metro landscape.

1996

ECI expands into the Southwest, opening a regional office in Tucson, Arizona
Landscape of Madison, Wisconsin.

1998

ECI expands into the Midwest, opening a regional office in Madison, Wisconsin
Old image from October 22, 2001 at the groundbreaking for the new Corporate Billings office with leadership. Richard McComish shovels a clump of dirt.

1999

ECI reaches 100 employees
Concrete pilings at a substation in the desert.

1999

ECI expands their partnerships with major utilities in the Southwest
Substation under construction at EPC Services Company's first project.

2000

ECI forms EPC Services Company (EPCS) as a subsidiary to provide Engineer-Procure-Construct delivery solutions to clients
Windmill farm with clouds.

2004

ECI begins offering high voltage engineering services for renewable energy facilities across the nation
Landscape of metro Tulsa, Oklahoma.

2006

ECI expands into the South, opening a regional office in Tulsa, Oklahoma
ECI headquarters, early morning.

2007

ECI reaches 200 employees together with EPC Services Company
Landscape of Metro Orlando, Florida.

2013

ECI expands into the Southeast, opening a regional office in Orlando, Florida
Landscape of Portland, Oregon.

2015

ECI expands into the Pacific Northwest in Portland, Oregon, to better serve local utilities
Industrial Automation Consulting, Inc. and Relay Application Innovation, Inc. logos.

2019

ECI acquires Industrial Automation Consulting (IAC), expanding the Industrial Support Services team, and Relay Application Innovation (RAI), expanding the Protection & Control Services team
Casco Systems logo.

2020

ECI acquires Casco Systems of Cumberland, Maine, expanding the company’s IEC-61850 design capabilities
PS Technologies Inc. logo.

2024

ECI acquires PS Technologies Inc. of Alberta, Canada, marking the company’s first international subsidiary
ETMI logo.

2024

EPC Services Company, an ECI subsidiary, acquires Electro-Test & Maintenance, Inc. of Rapid City, South Dakota, expanding ECI’s electrical testing and heavy equipment maintenance services
TransCo.Energy logo over blurry image of downtown Tempe, Arizona.

2025

ECI acquires TransCo.Energy, LLC of Tempe, Arizona, expanding ECI’s system planning, operations, interconnection, and HV transmission expertise in the Southwestern U.S.
Multiple group photographs of employees in a collage.

2026

Today, ECI has grown significantly to a full staff of over 1,200 employees operating from more than 37 offices nationwide

Expansion & Acquisitions

Growing together with exceptional people and teams, elevating how we serve our customers and the industries we support.

2000 – EPC Services Company

ECI’s wholly owned subsidiary, EPC Services Company (EPCS), was formed in 2000 to provide a professional based Project Management/EPC firm to handle the demand for utility and independent power delivery projects having ever shorter times for completion. EPC Services Company now focuses on traditional utility projects as well as major renewable project developments.

2019 – Industrial Automation Consulting

ECI acquired Industrial Automation Consulting (IAC), a turnkey automation engineering and information management firm, expanding our Industrial Services offerings and enhancing capabilities in real‑time control system integration.

2019 – Relay Application Innovation

ECI acquired Relay Application Innovation (RAI), expanding our capabilities in system protection design, integration, protection settings, customized software and hardware solutions, and field commissioning across all levels of the protection field.

2020 – Casco Systems

ECI acquired Casco Systems, headquartered in Cumberland, Maine, strengthening our capabilities in IEC 61850 design, integration, protection, and cybersecurity. This acquisition enhanced our ability to serve a wide range of utility and energy customers with advanced protection and control solutions.

2024 – PS Technologies Inc.

ECI acquired PS Technologies Inc. (PSTI), headquartered in Calgary, Alberta, marking our first international acquisition. This acquisition expanded our system protection and high‑voltage design capabilities and strengthened our ability to serve utility clients across Alberta and Western Canada.

2024 – Electro-Test & Maintenance

EPC Services Company, a subsidiary of ECI, acquired Electro‑Test & Maintenance (ETMI), headquartered in Rapid City, South Dakota. This acquisition expanded our utility maintenance, commissioning, equipment testing, and transformer service capabilities, strengthening support for electric utilities across the Western U.S.

2025 – TRANSCO.ENERGY, LLC

TransCo.Energy, LLC joins ECI, bringing its power system analysis and technical expertise from Tempe, AZ. This partnership strengthens ECI’s capabilities in system planning, operations, interconnection support, and transmission development up to 500 kV across the Southwest U.S.

Innovative

Whether raised platform substations, non-traditional transmission structures or creative sequencing, our team works collaboratively to provide an innovative solution.

Cost effective

Our designs are prepared with the overall capital, operation and maintenance budget in mind.

Responsive

ECI is committed to being the most responsive professional service provider in the industry.

We excel at full-scale
Engineer-Procure-Construct (EPC) Delivery

Together, ECI and EPCS can provide complete design-build capabilities for your power delivery substation or transmission facilities through 765 kV. If you’re ready to partner with us for your design + build project, contact us today!

let’s build something great

Are you in need of planning, conceptual design, detailed engineering, or a full turn-key project? Let our team provide a comprehensive scope of services and cost for your upcoming project.