CEMS Engineering

What CEMS Engineering does

CEMS Engineering, Inc. is a privately held, multi-discipline architecture and engineering (A/E) firm founded in 1989 and headquartered in Summerville, South Carolina, with a regional office in Wilmington, North Carolina. The firm delivers integrated design services across architecture, interior design, civil, electrical, mechanical, structural, fire protection, GIS, and building commissioning, operating as a single-source A/E provider rather than a software or product company. Its underlying technical stack centers on conventional engineering tooling and standards (HEC-RAS and SWMM hydraulic modeling, ASHRAE 90.1 energy compliance, LEED certification workflows, energy modeling, life-cycle analysis, and BIM-style coordinated design) rather than proprietary software platforms.

The firm's revenue model is professional-services fees billed against project scopes, executed under design-bid-build, design-build, and construction administration delivery methods. Its go-to-market is split between a federal channel (70+ annual IDIQ contracts with USACE, GSA, NAVFAC, USAF, DHS, and VA, plus a Mentor-Protégé JV with RS&H on the 10-year, $2 billion USAF Pool 3 A-E Next vehicle) and a regional non-federal channel serving educational institutions (College of Charleston, Charleston Southern University, The Citadel), municipalities (North Charleston City Hall, Hanahan Municipal), and corporate clients (Verizon Wireless, Trumpf Medical) primarily across the Southeast. The customer base is concentrated in U.S. federal/DoD agencies, with non-federal work functioning as a regional supplement rather than a counter-cyclical offset. The firm reports 101-250 employees and is led by President Stephen Mahaffey, P.E. and CFO Robert Milanian, with no disclosed external equity, parent, or acquisition activity.

Name

CEMS Engineering

Legal name

CEMS Engineering, Inc.

Website

https://cems-ae.com

Company type

Private

Founded year

1989

Operating status

Operating

Headcount range

101–250 employees

Short description

CEMS Engineering is a privately held multi-discipline architecture and engineering firm founded in 1989, serving primarily U.S. federal and DoD agencies (USACE, GSA, NAVFAC, USAF, DHS, VA) via IDIQ contracts, alongside regional education, municipal, and corporate clients in the Southeast through integrated A/E project services.

Ownership category

akta.pro rank

Headquarters

HQ city

Summerville

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering and Architecture Project Services: CEMS generates revenue through professional services fees for architecture and engineering projects. Services include design-bid-build, design-build, and construction administration. Projects range from small renovations to complex multi-facility government installations. The company has served clients on more than 70 annual federal IDIQ contracts and over 1000 projects.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

CEMS Engineering is a fully integrated multi-discipline architecture and engineering (A/E) firm providing professional design and consulting services across Architecture, Interior Design, Civil, Electrical, Mechanical, Structural, Fire Protection, GIS, and Commissioning disciplines. The firm delivers design-bid-build, design-build, and construction administration services for federal (DoD, GSA, NAVFAC, USAF, DHS, VA) and non-federal (education, state/local government, corporate, community, energy) clients on projects ranging from small renovations to complex multi-facility installations.

Product overview

CEMS Engineering is a fully integrated multi-discipline architecture and engineering (A/E) firm offering a comprehensive portfolio of services delivered as coordinated project teams rather than discrete software products. The core offerings include Architecture, Interior Design, Civil, Electrical, Mechanical, Structural, Fire Protection, GIS, and Commissioning services—all offered as professional engineering services. The integrated approach means clients receive coordinated design across disciplines from a single firm. The company operates in federal (DoD, federal agencies) and non-federal (education, government, energy, corporate, community) markets. Projects range from small renovations to large-scale campus developments, and the firm has expertise in sustainable design including LEED certification, historic preservation, and net-zero energy buildings.

Differentiator

Problem solved

Functional benefit

Products and services

• Architecture Services
• Interior Design
• Civil Engineering

Quantifiable outcome

• 70+ annual federal IDIQ contracts successfully completed
• +3 more outcomes

Named customers13 records

Segments6 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• RS&HcoreStrategic or Co-development Partner · 17 September 2021CEMS-RS&H USAF JV is an All Small Mentor-Protégé joint venture selected as one of eight companies on a 10-year $2 billion contract vehicle (Pool 3 A-E Next Program) to support U.S. Air Force infrastructure design and construction missions stateside. The partnership leverages CEMS's federal expertise with RS&H's broader A/E capabilities.

Scale indicators7 records

Recent moves8 records

Expansion highlights5 records

Broad incumbents

• HDR: Global architecture and engineering firm with deep federal, healthcare, and infrastructure practices; competes with CEMS on multi-discipline federal task orders and commissioning mandates.
• Kimley-Horn: Large multi-discipline planning, engineering, and design consultancy with significant federal, aviation, and infrastructure practices; competes with CEMS on federal IDIQ pursuits and serves overlapping state/local clients.
• Burns & McDonnell: Major employee-owned engineering, architecture, and construction firm with a sizable federal services practice (USAF, NAVFAC, USACE); competes for the same federal infrastructure task orders CEMS pursues.
• Michael Baker International: Large engineering and consulting firm with a substantial federal practice across DoD, civil works, and infrastructure; competes directly with CEMS on USACE and federal A/E task orders.

Direct peers

• Mead & Hunt: Mid-size multi-discipline A/E firm with a strong federal, aviation, and infrastructure practice; comparable in size, integrated service mix, and reliance on federal IDIQ vehicles.
• Clark Nexsen: Mid-size multi-discipline A/E firm headquartered in the Southeast with strong federal (DoD, VA, NAVFAC) and higher-education practices; directly comparable in scale, geography, and federal IDIQ reliance.
• Woolpert: Mid-size A/E and geospatial firm with federal and aviation practices; competes with CEMS on airfield, military base, and federal facility design task orders and brings GIS capability.
• LS3P: Southeast-based architecture, interiors, and engineering firm with higher-education, civic, and federal exposure; comparable in geography, integrated service mix, and project scale.
• RS&H: National architecture and engineering firm with deep federal/DoD infrastructure and airfield portfolio; CEMS' JV partner on the $2B USAF Pool 3 vehicle and the closest comparable federal A/E competitor at similar disciplines.
• Johnson, Mirmiran & Thompson (JMT): Mid-size multi-discipline engineering and architecture firm with substantial federal/DoD, transportation, and infrastructure practices; competes with CEMS on USACE and state DOT-adjacent task orders.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/cems_engin_arch

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 CEMS Engineering