What MEP Associates does

Salas O'Brien is a multi-disciplinary engineering and consulting firm delivering integrated technical services across the built environment, energy and resiliency, process design and integration, digital automation and robotics, sustainability consulting, and forensic investigation practice areas. The firm operates a professional services model rather than selling software or hardware, and delivers engineering expertise through project-based engagements covering MEP/FP, structural, civil, technology, acoustics, architecture and interiors, lighting, building envelope, asset management, safety and security, commissioning, and theatre consulting. Underlying capabilities include an in-house ISO 17025 accredited building envelope laboratory, Certified Consulting Meteorologist (CCM) expertise for forensic weather analysis, WELL Performance Testing Organization verification, and ABAA-certified field auditors, allowing the firm to perform accredited testing, certification, and litigation-grade analysis typically outsourced by competitors.

The firm serves enterprise and government clients across healthcare (Connecticut Children's, Kaiser Permanente, Pfizer), education (Princeton, Stanford, Georgia Tech, Wake Tech), government (US Navy, City of Colorado Springs, PG&E), aerospace (United Launch Alliance), entertainment and hospitality (Sphere Entertainment, Hilton, Caesars), commercial real estate (Crescent Communities), process and manufacturing (Toyota, Dairy Farmers of America, Mullins Cheese), power and utilities, and specialized venues including zoos (Zoo Atlanta, Toronto Zoo, Salisbury Zoo). Notable engagements include the MSG Sphere in Las Vegas, Launch Complex 41 modifications at Kennedy Space Center, an AI data center water recycling plant for a confidential hyperscale client, Stanford's campus decarbonization study, and PG&E's 10,000-mile undergrounding program. Portfolio breadth reflects a deliberate vertical-diversification strategy combined with multi-disciplinary technical depth.

Revenue is generated exclusively through fee-for-service project engagements with pricing determined by scope, complexity, and duration; no product, subscription, or transaction-based revenue streams are disclosed. Go-to-market is sales-led enterprise field sales combining direct client engagement with architects, general contractors, and construction managers acting as project partners. Geographic scope covers the United States and Canada with bilingual (English/French) digital presence, and the firm is privately held with no public filings, no disclosed external funding, and no parent company.

Name

MEP Associates

Legal name

Salas O'Brien

Website

https://mepassociates.com

Company type

Private

Founded year

2002

Operating status

Operating

Headcount range

101–250 employees

Short description

Salas O'Brien is a multi-disciplinary engineering consulting firm providing integrated MEP, structural, sustainability, decarbonization, digital/automation, and forensic services to enterprise and government clients across healthcare, education, government, aerospace, data centers, manufacturing, and entertainment sectors in the United States and Canada.

Ownership category

akta.pro rank

Product category

Engineering Consulting Services

NAICS

Engineering Services (54133)

SIC

Services-Engineering, Accounting, Research, Management (8700)

akta.pro primary industry

MEP (Mechanical, Electrical & Plumbing) Engineering Consulting (BPAHAIAE)

Keywords

• Mechanical engineering consulting
• MEP design services
• Building envelope consulting
• Sustainability consulting services
• Forensic engineering services

Headquarters

HQ city

Eau Claire

HQ country

United States

HQ region

North America

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional engineering consulting services including MEP design, structural engineering, sustainability consulting, and forensic investigation. Revenue generated through project-based engagements with architectural firms, construction companies, and direct client owners.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels7 records

Core offering

MEP Associates (operating as Salas O'Brien) is a multi-disciplinary engineering and consulting firm delivering technical services for the built environment, energy systems, and process industries. The firm provides MEP/FP, structural, civil, building envelope, sustainability, decarbonization, digital automation, robotics, and forensic consulting services. Engagements span the full project lifecycle from feasibility and design through construction administration, commissioning, and ongoing operations.

Product overview

Salas O'Brien is a multi-disciplinary engineering and consulting firm providing comprehensive services across the built environment. The company operates as a unified service organization rather than a software product company, offering integrated engineering solutions through multiple service categories: Built Environment Services (MEP/FP, Structural, Civil, Technology, Acoustics, Architecture & Interiors, Lighting, Building Envelope, Asset Management, Safety & Security, Commissioning, Theatre Consulting), Energy & Resiliency (Advanced Energy Systems, Decarbonization, Power Infrastructure, Resilience), Process Design & Integration (Process Engineering, Digital Automation, Robotics), Sustainability Consulting (LEED, WELL, ESG, Environmental), and Forensic Consulting (Engineering, Materials Testing, Litigation Support, Meteorology). The firm serves diverse markets including Healthcare, Education, Government, Data Centers, Hospitality, Theme Parks, Zoos, and Manufacturing.

Differentiator

Problem solved

Functional benefit

Products and services

• Built Environment Services
• Energy & Resiliency Services
• Process Design & Integration
• Digital, Automation & Robotics
• Sustainability Consulting & Design
• Forensic Consulting

Quantifiable outcome

• Prevent PFAS exposure in drinking water for approximately 100 million people through EPA regulatory implementation support
• +2 more outcomes

Named customers20 records

Segments11 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Partnerships

Two partnerships are on record, tiered core.

• The Beck GroupcoreImplementation/ SI/ Consulting PartnerProject partner for Austin Ridge Bible Church worship center project, working alongside Salas O'Brien on the 80,000 square foot green construction facility. The Beck Group served as architect on the project.
• Rogers O'BriencoreImplementation/ SI/ Consulting PartnerProject partner for Austin Ridge Bible Church worship center project. Rogers O'Brien served as contractor on the green construction project.

Scale indicators1 record

Recent moves5 records

Expansion highlights5 records

Direct peers

• ME Engineers: MEP engineering consulting firm specializing in complex facilities including sports, entertainment, cultural, and higher-education projects — closely comparable niche focus on high-performance buildings.
• Burns & McDonnell: Employee-owned engineering, architecture, and construction firm with strong MEP, process, and power practices — directly comparable multi-disciplinary platform serving similar enterprise and government clients.
• Affiliated Engineers (AEI): Specialized MEP/FP engineering consulting firm focused on complex facilities including healthcare, higher education, science & technology, and cultural institutions — closely mirrors the firm's core built-environment practice.

Broad incumbents

• Stantec: International engineering, architecture, and environmental consulting firm with deep presence in buildings, water, and energy — direct overlap with the firm's sustainability and MEP offerings.
• WSP Global: Global professional services firm providing engineering, advisory, and consulting across buildings, transportation, environment, and energy. Overlaps with MEP and sustainability consulting on the built-environment side.
• HDR Inc. Employee-owned architecture, engineering, and consulting firm with strong healthcare, education, and infrastructure practices — overlaps in MEP design, decarbonization, and sustainability consulting.
• Arcadis: Global design, engineering, and consulting firm with overlapping practices in buildings, sustainability, and digital/automation — comparable multi-disciplinary platform with international reach.
• Black & Veatch: Employee-owned engineering, construction, and consulting company with strong power, water, and decarbonization practices — directly comparable on energy infrastructure and sustainability projects.
• Tetra Tech: Engineering and consulting firm specializing in water, environment, and sustainable infrastructure — comparable on environmental engineering, PFAS consulting, and sustainability advisory services.
• Jacobs Solutions: Large global engineering, technical, professional, and construction services firm. Competes directly on multi-disciplinary engineering consulting across the same end-markets (built environment, energy, process), though at materially greater scale.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks6 records

Key highlights6 records

Customer concentration

• Facebookfacebook.com/salasobrien
• LinkedInlinkedin.com/company/mep-associates

Compliance7 records

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

Investments1 record

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

Frequently asked questions about MEP Associates