What Willett Engineering does

Willett Engineering Company (WEC) is an independent structural engineering consulting firm founded in 1990 by J. Mac Willett, P.E., S.E., headquartered in Tucker, Georgia, with a satellite office in Port St. Joe, Florida. The firm provides structural design, analysis, construction administration, renovation, retrofitting, historic preservation, erection engineering, connection design, adaptive re-use assessment, and disaster assessment services for new and existing buildings using steel, masonry, concrete, and timber materials. WEC holds specialty expertise in tilt-up concrete design, long-span steel erection engineering, steel connection design for fabricators, and historic preservation, including 3D modeling of original structural members from archival drawings. Its engineers are licensed in 47 U.S. states and territories, and the firm has served over 150 clients across K-12 education, manufacturing and distribution, retail and restaurant (including quick-serve prototypicals), multi-family residential, office, healthcare, theater and film, and government and civic markets.

The firm operates on project-based professional services fees negotiated per engagement, with go-to-market driven almost entirely by repeat-client relationships and referrals from architecture firms (Cooper Carry, BRPH, CEVIAN Design Lab, MSSA-PBK) and contractors such as Carroll Daniel Construction. Over 95% of business is reported as repeat client work. Notable projects include the $179 million, 470,000-square-foot Cherokee High School (the largest K-12 campus in WEC's history), the 350,000-square-foot Fox Factory manufacturing facility, Mercedes-Benz Stadium, and the award-winning Historic Ford Auditorium restoration at Berry College (Architecture MasterPrize 2020, Restoration & Renovation).

As of January 1, 2024, Brandon Hoffman, P.E., S.E. — a 12-year WEC veteran — purchased the company from Gray, Inc. and assumed the role of owner and president, returning WEC to independent small business ownership while founder J. Mac Willett continued as principal engineer. WEC operates with 11-50 employees using industry-standard tools (Revit, Enercalc, RISA) and has no disclosed external funding, M&A activity, or AI/ML capabilities in the source data.

Name

Willett Engineering

Legal name

Willett Engineering Company

Website

https://willettengineering.com

Company type

Private

Founded year

1990

Operating status

Operating

Headcount range

11–50 employees

Short description

Willett Engineering Company is an independent structural engineering consulting firm providing new building design, renovation, and historic preservation services for K-12, manufacturing, and commercial clients. Founded in 1990 and based in Tucker, Georgia, the 11-50 employee firm operates across 47 U.S. states.

Ownership category

akta.pro rank

Product category

Structural Engineering Services

NAICS

Engineering Services (54133), Fabricated Structural Metal Manufacturing (332312)

SIC

Services-Engineering Services (8711), Fabricated Structural Metal Products (3440)

akta.pro primary industry

Construction Engineering & Constructability Consulting (BPAHAIAN)

akta.pro secondary industries

Bridge & Infrastructure Steel Components (IMADACAL), Systems Engineering & Technical Program Management (BPAHAIAI)

Keywords

• Structural engineering services
• Building design consulting
• Historic preservation engineering
• Steel erection engineering
• Tilt-up concrete design

Headquarters

HQ city

Tucker

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. Structural Engineering Consulting Services: Project-based professional services revenue from structural engineering design, analysis, construction administration, and consulting for new building design, renovation, and historic preservation projects across commercial, educational, industrial, and institutional sectors.

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

Willett Engineering Company is a structural engineering consulting firm providing design, analysis, and construction administration services for building projects. Core services include new building design, renovation and retrofitting, historic preservation, erection engineering, connection design, structural consulting, and disaster assessment. Projects span building materials including steel, masonry, concrete, and timber across commercial, educational, industrial, and institutional sectors.

Product overview

Willett Engineering Company is a structural engineering consulting firm offering a comprehensive suite of services for building projects. Their core offering is structural engineering design and consulting services, including new building design, construction administration, analysis of existing structures, renovation and retrofitting, structural consulting, historic preservation, erection engineering, connection design, adaptive re-use assessment, and disaster assessment. They specialize in tilt-up concrete design, erection engineering for long-span structural steel framing systems, connection design for the steel fabrication industry, and preservation of historical structures. The company works across diverse markets including manufacturing, distribution, K-12 education, retail, multi-family residential, office, healthcare, theater and film, government and civic, and prototypical design. They serve clients throughout the US with engineers licensed in 47 states and territories.

Differentiator

Problem solved

Functional benefit

Products and services

• New Building Design Structural engineering design for new construction projects of all sizes and building materials including steel, masonry, concrete, and timber. Serves enterprise clients across industrial, education, retail, healthcare, government, residential, and entertainment sectors.
• Construction Administration Construction administration services to support projects from design through completion. Serves enterprise clients and project teams on building construction projects.
• Analysis of Existing Structures Structural analysis and assessment of existing buildings and structures. Serves owners and institutions needing evaluation of structural condition, feasibility studies, and forensic engineering.
• Renovation & Retrofitting of Existing Structures Structural engineering for renovation, retrofit, and code upgrades of existing structures, including heavy renovation and additions. Serves K-12 education, higher education, government, and commercial clients modernizing aging facilities.
• Structural Consulting General structural engineering consulting engagements covering feasibility, design input, and specialized advisory for building projects. Serves building owners, developers, architects, and contractors needing structural expertise.
• Historic Preservation Structural engineering for preservation of historical structures, including 3D modeling of original roof trusses and framing plans and integration of new systems such as acoustic ceilings within historical envelopes. Serves higher education institutions, civic bodies, and owners of historic buildings.
• Erection Engineering Specialized erection engineering for long-span structural steel framing systems. Serves steel fabricators, contractors, and building owners on complex steel erection projects.
• Connection Design Connection design services for the steel fabrication industry. Serves steel fabricators and contractors needing engineered steel connections for buildings and structures.
• Adaptive Re-Use Assessment Structural assessment and engineering for adaptive re-use of existing buildings being converted to new purposes. Serves developers, institutions, and owners repurposing existing structures.
• Disaster Assessment Structural assessment of buildings following disaster events such as storms, fires, or other damage incidents. Serves building owners, insurance-related engagements, and emergency response stakeholders.

Quantifiable outcome

• Over 95% of business comes from repeat clients
• +2 more outcomes

Named customers12 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 core.

• Cooper CarrycoreStrategic or Co-development PartnerArchitecture firm client for Midtown High School project ($17 million, 65,000 sf). WEC provided structural engineering design for classroom building that bridges 30 feet over underlying sewer system.
• BRPHcoreStrategic or Co-development PartnerArchitecture/engineering firm client for Fox Factory project in Gainesville, GA. WEC provided structural design for 350,000 sf vertically integrated manufacturing and distribution facility.
• CEVIAN Design LabcoreStrategic or Co-development PartnerArchitecture firm client for Historic Ford Auditorium renovation at Berry College. WEC's award-winning structural renovation work on this 1928 auditorium earned Architecture MasterPrize 2020 recognition.
• MSSA-PBKcoreStrategic or Co-development PartnerArchitecture studio partner for Cherokee High School project - the largest K-12 campus in WEC's 34-year history at 470,000 sf and $179 million. This is the largest project MSSA-PBK has been part of.
• Carroll Daniel ConstructioncoreStrategic or Co-development PartnerGeneral contractor partner for Cherokee High School project. WEC has teamed with Carroll Daniel countless times on previous projects, demonstrating long-standing collaborative relationship.

Scale indicators5 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Uzun + Case: Mid-sized structural engineering consulting firm based in Atlanta serving commercial, education, and healthcare markets with comparable building-type portfolio and Southeast geographic focus. Directly comparable in size, services, and regional concentration.
• Datum Engineers: Structural engineering consultancy with similar boutique size and expertise in steel, concrete, and timber design across commercial and institutional projects. Comparable specialty structural services and project-based delivery model.
• Ruby + Associates: Specialty structural engineering firm focused on steel connection design and steel fabrication support — a direct competitor in one of WEC's key niches (connection design for steel fabrication). Comparable technical specialization.
• Simpson Gumpertz & Heger (SGH): National structural engineering and building technology firm with strong expertise in historic preservation, adaptive reuse, and complex structural work. Directly comparable service offerings with broader geographic reach.
• Martin/Martin: Mid-sized structural engineering consultancy offering comparable services across building types including commercial, education, and historic preservation. Similar boutique scale and project-based delivery model.

Broad incumbents

• Wiss, Janney, Elstner Associates (WJE): Large national engineering consultancy specializing in structural evaluation, restoration, and preservation. Directly competes in historic preservation and structural investigation — overlapping with WEC's preservation specialty.
• Burns & McDonnell: Large multi-discipline engineering firm providing structural engineering services as part of broader infrastructure and facilities portfolios. Competes for the same institutional and industrial clients as WEC.
• AECOM: Global engineering and construction services firm offering structural engineering as part of larger infrastructure and building design portfolios. Competes for marquee institutional and government projects that WEC targets.
• Thornton Tomasetti: International engineering consultancy with structural engineering practice serving complex building and infrastructure projects. Comparable expertise in long-span steel, historic preservation, and high-profile structures (e.g., Mercedes-Benz Stadium class).

Regional players

• Pacific Engineering Technologies: Structural engineering firm serving the Pacific Northwest with comparable boutique-size structural design services for educational, commercial, and industrial projects. Comparable in scale and service mix but different geography.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat3 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/willetteng

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 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 Willett Engineering