Duffy Engineering

Structural Engineering Servicesduffyeng.com

Duffy Engineering is a private structural engineering design firm founded in 1990 in Saint Cloud, Minnesota, serving industrial, commercial, and residential clients across the United States with a small team of 11-50 employees.

Company typePrivate
Founded1990
HeadquartersSaint Cloud, United States
Headcount11–50
GTM typeB2B
OfferingServices

What Duffy Engineering does

Duffy Engineering is a private, for-profit structural engineering design firm headquartered in Saint Cloud, Minnesota, founded in 1990. The firm provides structural engineering design services across three end-markets: industrial, commercial, and residential. Its core offering is the analysis, design, and engineering documentation of structural systems for building and infrastructure projects in those segments. The firm operates as a small professional services practice, with a disclosed headcount of 11-50 employees, and is privately held with no parent company disclosed.

The firm's business model follows the standard professional services economics of structural engineering: revenue is generated through fee-based project engagements (typically hourly, fixed-fee, or percentage-of-construction-cost billing) where licensed engineers perform design, calculations, drawing preparation, and project oversight. No public pricing, customer, or project data is available in the source material, and the firm's website (duffyeng.com) was inaccessible at time of collection, limiting visibility into service line detail, technology stack, project portfolio, and management. No information on products, proprietary tools, software platforms, certifications, or technology partnerships was disclosed.

Available evidence is limited to firmographic data: founding year, location, sector coverage, and headcount band. No management team, funding history, M&A activity, partnerships, awards, patents, regulatory actions, or strategic moves beyond founding are documented. The firm is best understood as a long-tenured, small-scale regional structural engineering practice serving local and regional industrial, commercial, and residential clients, with the specific operational and financial profile obscured by data gaps.

Duffy Engineering firmographics

Firmographics

Name: Duffy Engineering
Website: https://duffyeng.com
Company type: Private
Founded year: 1990
Headcount range: 11–50 employees
Short description: Duffy Engineering is a private structural engineering design firm founded in 1990 in Saint Cloud, Minnesota, serving industrial, commercial, and residential clients across the United States with a small team of 11-50 employees.
Ownership category
akta.pro rank

Duffy Engineering industry classification

Industry

Product category: Structural Engineering Services
NAICS: Engineering Services (541330)
SIC: Services-Engineering Services (8711)
akta.pro primary industry: Civil & Structural Engineering Consulting (BPAHAIAA)
akta.pro secondary industries: Project Management & Owner’s Engineering / Technical Consultancy (Spec Writing, Bid Support, Site Support) (IMAJAGAO), Construction Engineering & Constructability Consulting (BPAHAIAN)

Keywords

Structural engineering
Engineering design
Industrial engineering
Commercial engineering
Residential engineering

Where Duffy Engineering is headquartered

Location

Headquarters

HQ city: Saint Cloud
HQ country: United States
HQ region: North America

Markets served

Duffy Engineering business model

Business model

GTM type: B2B
Offering type: Services
Cost components: Personnel, Operations, Technology or R&D, Marketing or Sales

Duffy Engineering product offering

Product offering

Core offering

Duffy Engineering is a structural engineering design firm that provides structural engineering services for industrial, commercial, and residential projects. The firm operates from Saint Cloud, United States, and was founded in 1990.

Differentiator

Problem solved

Functional benefit

Companies that use Duffy Engineering

Customer profile

Ideal customer profiles2 records

Duffy Engineering technology and API

Technology

Technology focussed No

API detail

Has API: No
API docs
API detail

Core technology

AI maturity

App detail

Duffy Engineering partnerships and signals

Strategic signal

Recent moves1 record

Duffy Engineering competitors and assessment

Company assessment

Broad incumbents

AECOM: Global engineering and infrastructure consulting firm with extensive structural engineering practices that bid for similar industrial, commercial, and residential clients at much larger scale.
Terracon Consultants: Engineering consulting firm with a Midwest and broader U.S. footprint providing structural and related services to commercial, industrial, and institutional clients — broad incumbent comparable in end markets.
Jacobs Engineering: Large multi-discipline engineering consultancy with structural and building engineering practices serving industrial and commercial clients; broad incumbent competitor for higher-end work.
Stantec: Global AEC firm with structural engineering practices serving industrial, commercial, and residential projects; broader incumbent with overlapping capability but much larger footprint.

Direct peers

S.K. Ghosh Associates: A focused structural engineering consultancy specializing in seismic and building code consulting for commercial and residential clients; a specialty competitor at a similar boutique scale.
KL&A Engineers and Builders: A privately held structural engineering firm serving commercial, industrial, and residential buildings; directly comparable to Duffy Engineering in scope, scale, and technical specialization.
Martin/Martin Inc. A structural and civil engineering firm serving commercial, industrial, and residential projects across multiple U.S. markets; closely aligned with Duffy's practice profile and scale.
Walter Moore Engineers: A mid-sized structural engineering consultancy working on commercial, industrial, and institutional buildings; comparable in practice size and service mix to Duffy Engineering.
Stanley D. Lindsey & Associates: A structural engineering design consultancy with a comparable client mix across commercial, residential, and adaptive reuse projects; a directly relevant specialty peer.
Wiss, Janney, Elstner Associates: A leading structural and architectural engineering consultancy serving buildings and infrastructure; relevant peer in structural engineering design, though typically operating at larger scope.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat2 records

Key risks4 records

Key highlights4 records

Customer concentration

Duffy Engineering financial estimates

Financial estimate

Revenue estimate

Valuation estimate

Duffy Engineering leadership team

Management profile

Number of profiles

Duffy Engineering funding detail

Funding detail

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

Duffy Engineering M&A and investment

M&A and investment

M&A

Investments

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

Frequently asked questions about Duffy Engineering

What does Duffy Engineering do?

When was Duffy Engineering founded?

Duffy Engineering was founded in 1990. It employs 11 to 50 people.

Where is Duffy Engineering based?

Duffy Engineering is headquartered in Saint Cloud, United States, in the North America region.

Who are Duffy Engineering's main competitors?

Broad incumbents on record are AECOM, Terracon Consultants, Jacobs Engineering and Stantec. Direct peers are S.K. Ghosh Associates, KL&A Engineers and Builders, Martin/Martin Inc., Walter Moore Engineers, Stanley D. Lindsey & Associates and Wiss, Janney, Elstner Associates.

Does Duffy Engineering have an API?

No public API is recorded for Duffy Engineering.

What industry is Duffy Engineering in?

Duffy Engineering's product category is Structural Engineering Services. Its primary akta.pro industry code is BPAHAIAA, Civil & Structural Engineering Consulting, with a secondary code of IMAJAGAO, Project Management & Owner’s Engineering / Technical Consultancy (Spec Writing, Bid Support, Site Support). Its NAICS code is 541330 and its SIC code is 8711.