Plump Engineering

What Plump Engineering does

Plump Engineering, Inc. (PEI), founded in 1989/1990 by Richard Plump, is a fully integrated architectural and engineering firm headquartered in Anaheim, California, with 101-250 employees and an additional office in Albany, New York. The firm is licensed in all 50 states and delivers Architecture, Structural Engineering, Mechanical/Electrical/Plumbing (MEP), Civil Engineering, Land Surveying, Planning/Entitlements, and Construction Management services across nine verticals including Aerospace, Industrial/Manufacturing, Automotive, Food/Cold Storage, Retail, Schools/Universities, Medical/Dental, Pharmaceutical/Laboratories, and Hospitality/Multifamily.

The firm runs on a project-based professional services model using standard A&E technology (BIM, AutoCAD, Revit, Blue Beam) and earns revenue through fee-based engineering and architecture engagements ranging from facility maintenance to complex capital projects, with marquee clients including Boeing, Kaiser Permanente, Starbucks, Nordstrom, Louis Vuitton, Tesla, Toyota, Rivian, City of Hope, Marriott, Bank of America, and the Space Shuttle Endeavour transport program. Its differentiated capabilities are an integrated multi-discipline delivery model under one roof, 50-state licensing that supports national account rollouts, and a specialized heavy-haul transport engineering and disaster recovery service line built on high-profile projects such as the Endeavour move and Chevron coke drum transports.

In February 2026, PEI became a founding partner firm in Hunter Forest Capital's Agathos AEC platform, backed by Aldine Capital Partners, Petra Capital Partners, Pine Street Capital, and Patriot Capital, positioning the firm as the cornerstone of a PE-backed nationwide A&E consolidation strategy.

Name

Plump Engineering

Legal name

Plump Engineering, Inc.

Website

https://peica.com

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

101–250 employees

Short description

Plump Engineering is a fully integrated, 50-state licensed architectural and engineering firm headquartered in Anaheim, CA, delivering multi-discipline design services to enterprise clients across aerospace, retail, healthcare, industrial, and hospitality verticals nationwide.

Ownership category

akta.pro rank

Product category

Architectural and Engineering Services

NAICS

Engineering Services (54133), Architectural, Engineering, and Related Services (5413)

SIC

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

akta.pro primary industry

Civil & Structural Engineering Consulting (BPAHAIAA)

akta.pro secondary industry

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

Keywords

• Architectural engineering services
• Structural engineering design
• MEP engineering services
• Civil engineering consulting
• Land surveying services

Headquarters

HQ city

Anaheim

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering and Architecture Project Services: Fee-based engineering and architecture services for projects ranging from simple maintenance to complex capital projects. Services include structural, mechanical, electrical, plumbing, civil engineering and surveying, architecture, and construction management. Revenue is project-based, typically one-time engagements with options for ongoing client relationships.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Plump Engineering, Inc. is a fully integrated architectural and engineering firm providing services in architecture, structural engineering, mechanical/electrical/plumbing (MEP), civil engineering, and land surveying for enterprise clients nationwide. The firm delivers end-to-end project services from concept through construction administration, with specialized capabilities in heavy-haul transport engineering and disaster recovery. It is licensed in all 50 states and serves clients across aerospace, industrial manufacturing, retail, healthcare, automotive, food/cold storage, and hospitality sectors.

Product overview

Plump Engineering, Inc. (PEI) is a comprehensive, fully integrated architectural and engineering firm providing services nationwide across all 50 states. The company operates as a multi-disciplined engineering and design practice combining Architecture, Structural Engineering, Mechanical/Electrical/Plumbing (MEP), Civil Engineering, Land Surveying, and Construction Management services. PEI delivers solutions from conceptual design through construction administration, offering both integrated full-service project delivery and individual à la carte service options. The firm specializes in serving diverse industries including Aerospace, Industrial/Manufacturing, Automotive, Food/Cold Storage, Retail, Schools/Universities, Medical/Dental, Pharmaceutical/Laboratories, and Hospitality/Multifamily. Notable signature capabilities include heavy-haul transport engineering for massive objects and disaster recovery services.

Differentiator

Problem solved

Functional benefit

Products and services

• Architecture Services

Quantifiable outcome

• Successfully executed 17,000+ projects across various industries
• +3 more outcomes

Named customers31 records

Segments9 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

Partnerships

Five partnerships are on record, tiered flagship, core and minor.

• Agathos AEC, Inc.flagshipStrategic or Co-development Partner · 14 February 2026Hunter Forest Capital formed Agathos AEC as a new platform in the Architecture & Engineering sector with Plump Engineering as a strategic partner. The platform aims to build a diversified, nationwide architecture and engineering design firm combining civil, structural, MEP, surveying, and electrical engineering expertise. Plump Engineering (PEI) is one of the founding partner firms in this consolidation platform backed by multiple private equity investors.
• Encon Construction ServicescoreStrategic or Co-development Partner · 12 October 2012Plump Engineering and Encon Construction Services formed a strategic partnership to provide design, engineering and logistics management for the transport of the Space Shuttle Endeavour from LAX to the California Science Center. The two companies worked together with Sarens, CalTrans, Southern California Edison and local police departments to protect infrastructure during transport. This partnership exemplifies their combined capabilities in heavy transport engineering.
• SarensminorStrategic or Co-development PartnerHeavy-lift cargo transport experts from the Netherlands collaborated with Plump Engineering on the Chevron El Segundo Refinery coke drum transport project. Sarens provided specialized transport equipment and expertise for moving the 544,000 lb drums.
• Chevron El Segundo RefinerycoreStrategic or Co-development PartnerMajor petroleum refiner engaged Plump Engineering to design the logistics and transportation plan for moving six giant coke drums from King Harbor to the refinery. Services included protecting roadways, sewer/storm drain systems, underground utilities, and traffic signals along the route.
• LEED Certification BodiesminorOthersCollaboration with green building certification bodies to provide LEED certified architectural services and sustainable building designs.

Scale indicators4 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Tetra Tech: International consulting and engineering firm specializing in water, environment, infrastructure, and energy. Overlaps with Plump on industrial facility, civil, and infrastructure work at a much larger scale.
• WSP USA: Global professional services consultancy providing engineering, planning, and design across buildings, transportation, environment, and energy. Competes for the same enterprise facility engineering and infrastructure work as Plump, with far broader resources.
• HDR Inc. Employee-owned A&E firm with strong architecture, engineering, and consulting practices across healthcare, aviation, infrastructure, and industrial. Comparable in private ownership and integrated delivery model, though materially larger.
• HNTB Corporation: Employee-owned infrastructure design firm with strong architecture, engineering, and planning practices serving transportation, aviation, and federal clients. Competes with Plump on aviation infrastructure and large civic facility engineering.
• AECOM: Global infrastructure consulting firm delivering architecture, engineering, and construction services across aviation, transit, water, and industrial markets. Larger-scale competitor for national enterprise and government A&E RFPs.
• Burns & McDonnell: Employee-owned engineering, architecture, and construction firm serving aviation, industrial, manufacturing, and energy clients. Highly comparable in private ownership culture and integrated multi-discipline delivery to enterprise accounts.
• Stantec: Global multi-discipline professional services firm with deep architecture, engineering, and environmental practices serving buildings, infrastructure, and industrial markets. Competes with Plump on national enterprise accounts but at much larger scale.

Direct peers

• Kimley-Horn: Employee-owned national A&E consulting firm offering planning, engineering, and design services across multiple verticals. Most comparable mid-to-large private A&E peer with similar multi-discipline integration and long-tenured client relationships.
• KPFF Consulting Engineers: Privately held structural and civil engineering firm with offices nationwide providing building, infrastructure, and specialty engineering. Directly comparable multi-discipline structural/civil practice serving similar commercial and institutional clients.
• Affiliated Engineers Inc. (AEI): Privately held MEP engineering firm specializing in complex building systems for healthcare, higher education, research, and industrial facilities. Closely comparable private firm with deep MEP and integrated engineering delivery to similar enterprise client base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/plumpeng
• LinkedInlinkedin.com/company/plump-engineering-inc.
• Instagraminstagram.com/plump_eng

Revenue estimate

Valuation estimate

Number of profiles

Profiles11 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 Plump Engineering