What West Plains Engineering does

West Plains Engineering, Inc. (WPE) is a privately held professional services engineering firm founded in 1984 in Rapid City, South Dakota, by graduates of the South Dakota School of Mines & Technology and South Dakota State University. The firm provides mechanical, electrical, plumbing (MEP), and power systems design services for buildings and infrastructure, organized into four practice lines: Mechanical/Plumbing Engineering, Electrical Engineering, Power Solutions (transmission, distribution, substations, SCADA), and an Electrical Specialties Division offering arc flash analysis, infrared thermography, and power factor correction. It also delivers studies/assessments and sustainable design services including LEED certification support. Customers span K-12 and higher education, healthcare, industrial/manufacturing, municipal/government, utilities, aviation, and military end markets across the Upper Midwest and Mountain West.

The firm operates from four regional offices in Rapid City (SD), Sioux Falls (SD), Casper (WY), and Cedar Rapids (IA), with more than 30 engineers on staff (51-100 total employees). Professional engineers maintain active PE registrations in more than a dozen states, and the firm invests in design technology including Autodesk Revit BIM, 3D Revit modeling, PLS-CADD for power distribution, and Milsoft Windmil modeling. Project credentials include multiple LEED Platinum and Gold-certified facilities (Lowe's Discovery Lab & Children's Village, Mt. Rushmore Concession, SD Army National Guard Barracks, Iowa State Small Animal Teaching Hospital) and standout projects such as the DSU Trojan Athletics Complex ($38M), Tri-Valley High School ($35M), USD DakotaDome ($24M), and the T.I.P. Rural Electric Cooperative Headquarters (52,000 sf).

WPE earns revenue through project-based professional services engagements priced by quoted scope, complexity, and sector. Work is procured through competitive bidding, RFQ/RFP processes, or direct selection (for government clients). The go-to-market motion is direct enterprise field sales executed through the four offices with no third-party channel distribution or platform distribution. Marketing is content-led, anchored by the bi-monthly Plains Talk newsletter distributed to 2,000+ subscribers, Strategic Direction white papers, social media (Facebook, Instagram, LinkedIn), and a public project portfolio on the company website. The firm is independent of any parent company or private equity sponsor, and remains an employee/principal-led corporation.

Name

West Plains Engineering

Legal name

West Plains Engineering, Inc.

Website

https://westplainsengineering.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

51–100 employees

Short description

West Plains Engineering is a private mechanical, electrical, plumbing, and power systems design firm founded in 1984, serving K-12, higher education, healthcare, industrial, municipal, and utility clients across the Upper Midwest and Mountain West through four regional offices.

Ownership category

akta.pro rank

Product category

Building Engineering Services (MEP & Power Systems Design)

NAICS

Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Engineering design services (line design, substation design, civil/structural) (EUADAKAG)

akta.pro secondary industries

Substation EPC & construction (AIS/GIS, greenfield/brownfield) (EUADAKAC), Building Thermal Controls & Building Management Systems (HVAC BMS) (IMAHAKAK)

Keywords

• Mechanical engineering design
• Electrical engineering services
• MEP consulting
• Power systems design
• Building systems engineering

Headquarters

HQ city

Rapid City

HQ country

United States

HQ region

North America

Offices4 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Design Services: Professional engineering services for mechanical, electrical, plumbing, and power systems design for building environments. Services include system design, bid phase assistance, and construction administration.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels6 records

Core offering

West Plains Engineering is an engineering firm that designs mechanical, electrical, plumbing (MEP) and power systems for building environments. Across four regional offices in the Upper Midwest, more than 30 professional engineers deliver HVAC, plumbing, fire suppression, medical gas, lighting, power distribution, communications, fire alarm, security, and electrical specialties (arc flash analysis, thermography, power factor correction), as well as transmission/distribution, substation and SCADA power systems design, engineering studies, and sustainable/LEED-certified design.

Product overview

West Plains Engineering is an engineering firm offering integrated MEP (mechanical, electrical, plumbing) and power systems design services through four regional offices. Their core offerings include Mechanical Engineering Services (HVAC, plumbing, fire suppression), Electrical Engineering Services (lighting, power distribution, communications), Power Solutions (transmission, distribution, substations, SCADA), and an Electrical Specialties Division (arc flash analysis, thermography, power factor correction). They also provide Studies & Assessments and Sustainable Design/Green Solutions including LEED certification support, solar, wind, and geothermal systems. The company serves diverse markets including K-12 education, higher education, healthcare, industrial, municipal, military, and hospitality sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Mechanical Engineering Services Comprehensive mechanical engineering design services including HVAC system design (heating, cooling, ventilation), plumbing systems, medical gas systems, and fire suppression systems for various building types across education, healthcare, industrial, municipal, and military sectors.
• Electrical Engineering Services Complete electrical engineering design services covering lighting systems, power distribution, communications infrastructure, fire alarm, security systems, and special electrical systems for buildings and facilities across diverse market sectors.
• Power Solutions Transmission and distribution system design, substation design, SCADA and load management systems, including feasibility studies, preliminary and final design, construction supervision and inspection services for rural electric cooperatives, municipal utilities, and utility infrastructure projects.
• Electrical Specialties Division Services Specialized electrical services including arc flash analysis, infrared thermography, power factor correction, protective device coordination, selective coordination, and short circuit analysis for safety and efficiency improvements in commercial and industrial facilities.
• Engineering Studies & Assessments Engineering studies and analyses including life cycle cost analysis, indoor air quality studies, lighting system evaluations, building systems evaluations, code review, life safety assessments, and lightning protection analysis for owners evaluating existing facilities or system upgrades.
• Sustainable Design / Green Solutions Environmentally-friendly and energy-efficient engineering solutions including LEED certification support, solar energy systems, wind energy systems, and geothermal HVAC systems, delivered by multiple LEED Accredited Professionals on staff.

Quantifiable outcome

• 16,500+ engineering hours contributed by individual engineer across 100+ projects
• +1 more outcomes

Named customers14 records

Segments8 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• HDR, Inc. Large global architecture/engineering firm with deep MEP, healthcare, education, and power T&D practices. Directly comparable as a competitor on the same client types (universities, hospitals, utilities) as WPE, but with vastly greater scale and geographic reach.
• Stantec: Global engineering consultancy with strong building engineering, power, and infrastructure practices. Competes with WPE on education, healthcare, and municipal projects in the Upper Midwest and offers a much broader service portfolio.
• Burns & McDonnell: Engineering, architecture, and construction firm with one of the strongest T&D and substation practices in the U.S. Overlaps directly with WPE's Power Solutions division and competes for rural electric cooperative and utility modernization work.

Direct peers

• Ulteig: Mid-sized engineering firm headquartered in the Upper Midwest (Fargo, ND) with a power and infrastructure focus, including T&D, substation, and renewables. Closest comparable to WPE in scale, regional base, and Power Division capabilities.
• Stanley Consultants: Engineering consulting firm of similar size with MEP, power, and infrastructure practices serving public-sector clients. Comparable in business model (professional services design) and target markets (municipal, education, utilities).
• ME Engineers: MEP engineering consultancy specializing in mechanical and electrical design for complex buildings including sports venues, healthcare, and higher education. Comparable service line mix and project complexity to WPE.
• Henderson Engineers: Mid-sized MEP engineering firm with strong sports, healthcare, and commercial building practices. Comparable in scale, service mix, and reliance on licensed PE bench for project delivery.
• Mazzetti: MEP engineering firm with strong healthcare and sustainable design practices. Comparable to WPE's healthcare vertical and LEED/sustainability depth, though based in the West Coast.

Regional players

• EAPC Architects Engineers: Upper Midwest-based (ND/MN) full-service architecture and engineering firm offering MEP and structural design. Directly comparable regional competitor serving similar education, healthcare, and municipal clients.
• POWER Engineering Services: Power systems engineering firm offering substation, T&D, and arc flash services. Overlaps most directly with WPE's Power Solutions and Electrical Specialties divisions on utility and industrial clients.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/westplains
• Instagraminstagram.com/west_plains_engineering

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 records

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 West Plains Engineering