Marshall Engineering Corp

What Marshall Engineering Corp does

Marshall Engineering Corporation (MEC), doing business as MEC, is a Texas-licensed professional engineering and consulting firm specializing in Mechanical, Electrical, and Plumbing/Piping (MEP) design and project management. Founded in 1996 by Rayford R. Marshall, P.E. in Humble, Texas, the firm is privately held, founder-owned, and operates with 11-50 employees carrying over 135 years of combined professional experience. Its service portfolio spans core MEP engineering (mechanical systems from small direct expansion to multi-zone chilled water hydronic, electrical design across high/medium/low-voltage systems, and plumbing/piping design per code) supported by integrated modules including Front-End Engineering, Detail Engineering, Cost Engineering, and full Construction Phase Services (supervision, inspection, reporting, document/schedule/cost control). The firm also offers Plan/Consulting services applying "just in time" management principles.

MEC's go-to-market is enterprise field sales and direct project bidding, with services delivered across Texas, Oklahoma, Louisiana, Florida, and West Virginia. Customers include Fortune 500 enterprises (Chipotle, Hyatt, United Airlines), federal and state government agencies (Federal Bureau of Prisons, Texas Department of Criminal Justice, METRO Houston), and educational institutions (Texas A&M University). Revenue is generated through project-fee-based professional services contracts, with pricing determined per project scope and segment rather than through published fee schedules. The firm holds HUB (Historically Underutilized Business), SBE (Small Business Enterprise), and SAM.gov federal contracting registrations, and its Engineer of Record maintains PE licensure in Texas, West Virginia, Maryland, Virginia, and Washington DC. Notable project engagements include MEP and fire protection design for the Texas A&M Kyle Field expansion, LEED commissioning support for the Houston Dynamo Stadium, and electrical and fueling infrastructure design at United Airlines' Bush IAH hangar.

Name

Marshall Engineering Corp

Legal name

Marshall Engineering Corporation

Website

https://marshallengineeringco.com

Company type

Private

Founded year

1996

Operating status

Operating

Headcount range

11–50 employees

Short description

Marshall Engineering Corporation is a Texas-licensed MEP engineering and consulting firm founded in 1996, serving commercial, government, industrial, aviation, and educational clients across five US states with project-based professional services.

Ownership category

akta.pro rank

Product category

Engineering Consulting Services

NAICS

Engineering Services (541330), Architectural, Engineering, and Related Services (5413)

SIC

Services-Engineering, Accounting, Research, Management (8700), Construction - Special Trade Contractors (1700)

akta.pro primary industry

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

akta.pro secondary industries

Hard Services (MEP/HVAC, Electrical, Plumbing) (BPABAAAA), System & Subsystem Commissioning (Mechanical/Electrical/I&C) (EUAEAJAB), Rotating/Static Equipment Installation & Alignment (Pumps, Compressors, Fans, Skids) (EUAEAFAH)

Keywords

• MEP engineering services
• Mechanical electrical plumbing design
• HVAC engineering consulting
• Government infrastructure engineering
• Construction phase services

Headquarters

HQ city

Humble

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering Consulting Services: Professional engineering and consulting services provided on a project basis for mechanical, electrical, plumbing, and piping engineering design. Revenue is generated through project fees for design services, construction phase services, and consulting engagements. Projects range from small direct expansion systems to multi-zone chilled water hydronic systems.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels3 records

Core offering

Marshall Engineering Corporation is a Texas-based professional engineering and consulting firm providing Mechanical, Electrical, and Plumbing (MEP) engineering design and project management services. The firm delivers mechanical engineering (HVAC from direct expansion to multi-zone chilled water hydronic systems), electrical engineering (high/medium/low-voltage systems per the National Electric Code), plumbing engineering, and integrated front-end, detail, cost, and construction phase services. Projects span commercial, government, industrial, religious, sports, transportation/aviation, and educational facilities across Texas, Oklahoma, Louisiana, Florida, and West Virginia.

Product overview

Marshall Engineering Corporation (MEC) is a professional engineering and consulting firm offering MEP (mechanical, electrical, plumbing/piping) engineering design and project management services. The company operates as a unified service offering organized into core engineering disciplines (Mechanical, Electrical, and Plumbing Engineering) supported by integrated service modules (Front-End Engineering, Detail Engineering, Cost Engineering, and Construction Services). The core services and modules work together to provide comprehensive project delivery from conceptual design through construction execution. MEC also provides specialized consulting and plan management services utilizing 'just in time' management principles. Services are delivered across multiple market sectors including commercial, government, industrial, religious facilities, sports facilities, and transportation/aviation.

Differentiator

Problem solved

Functional benefit

Products and services

• Mechanical Engineering Services Mechanical engineering design services ranging from small direct expansion systems to multi-zone chilled water hydronic systems, based on over 135 years of combined experience in designing mechanical and HVAC systems. Available to commercial, government, industrial, and institutional clients.
• Electrical Engineering Services Electrical design services utilizing the latest National Electric Code (NEC) for high-, medium-, and low-voltage electrical systems, including analysis of existing services, coordination with service providers, and electrical load analysis for proposed facilities. Available to commercial, government, industrial, and institutional clients.
• Plumbing Engineering Services Plumbing design services focused on proper sizing of supply and drain lines per code requirements, including flow rate and pressure drop calculations and resultant equipment sizing for facilities that may exceed minimum code requirements. Available to commercial, government, industrial, and institutional clients.
• Plan/Consulting Services Project and construction management consulting utilizing 'just in time' management concepts, coordinating with service suppliers, vendors, contractors, and inspectors for commercial and industrial construction projects.
• Front-End Engineering Front-end engineering interface with design professionals, owners, stakeholders, and approval authorities to translate early concepts into projects within allocated restraints.
• Detail Engineering Services Integration of multi-discipline requirements to ensure mechanical, electrical, and plumbing services are implemented in an effective manner across all project types.
• Cost Engineering Services Cost and schedule engineering services that convert detailed engineering into constructible plans that construction experts can implement.
• Construction Services Complete construction phase services including supervision, inspection, reporting, document control, schedule control, and cost control to ensure quality work is delivered in a timely, cost-effective manner.

Named customers10 records

Segments7 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature1 record

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Smith Seckman Reid: Engineering firm providing MEP, structural, and commissioning services to healthcare, education, and government clients across the Southeast — directly comparable to MEC in regional footprint and institutional vertical focus.
• Mazzetti: MEP and technology systems consultancy focused on healthcare, higher-education, and mission-critical facilities. Comparable to MEC in providing integrated mechanical, electrical, plumbing, and technology design across institutional clients.
• Affiliated Engineers (AEI): Engineering consultancy specializing in MEP, structural, and sustainability design for laboratories, healthcare, and higher-education facilities — directly comparable to MEC's higher-ed and government institutional portfolio.
• ME Engineers: Mid-size MEP engineering consultancy delivering mechanical, electrical, and plumbing design for commercial, aviation, sports, and cultural facilities — a near-direct functional peer to MEC's multi-discipline MEP model across comparable end markets.
• Syska Hennessy Group: Established MEP and critical-systems engineering firm with deep aviation, healthcare, and government practices. Comparable in offering integrated mechanical, electrical, and plumbing design across mission-critical and commercial projects.
• Henderson Engineers: Mid-size MEP building systems engineering firm serving retail, hospitality, sports, and commercial real estate developers — closely comparable to MEC in project type, end-market diversification, and consultant-led delivery model.
• TLC Engineering Solutions: Mid-size MEP and structural engineering firm serving healthcare, education, government, and commercial markets, comparable to MEC in scale, multi-vertical diversification, and project-based professional services delivery.

Broad incumbents

• WSP USA: Global engineering consultancy with deep MEP and building systems practice serving aviation, transit, government, and commercial real estate — competes with MEC for federal and large institutional engagements but operates at a fundamentally different scale.
• Page (Page Southerland Page): Architecture and engineering firm with strong MEP practice serving healthcare, higher-education, and government markets — comparable end-market mix to MEC but with substantially larger headcount and broader service offering.
• Burns & McDonnell: Large, multi-discipline engineering, architecture, and construction firm serving aviation, federal, energy, and industrial markets. Overlaps with MEC's vertical mix but at vastly greater scale and with significantly broader service portfolio.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/MarshallEngine1

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 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 Marshall Engineering Corp