What DiDonato Associates does

DiDonato Associates is a privately held professional engineering and architecture firm headquartered in Buffalo, NY, founded in 1965 to provide civil, structural, architectural, aviation, transportation, and construction administration services to public and private clients throughout Western New York. The firm operates as a professional corporation (DiDonato Associates Engineering and Architecture, P.C.) with 11-50 employees led by seven principal-owners across functional disciplines (civil, structural-buildings, structural-bridges, aviation, architecture, and transportation). Its core service portfolio spans roadway rehabilitation and complete streets design, bridge inspection and replacement, building design and historic preservation, FAA-compliant airfield engineering, and construction-phase services including clerk-of-the-works; specialized offerings include structural design for LED displays and scoreboards.

The business model is project-based professional services delivered through competitive public-sector procurement (RFQ/RFP) and negotiated private contracts. Revenue is generated primarily from government clients — municipalities, county DPWs, NYS DOT, the Niagara Frontier Transportation Authority, SUNY Buffalo, and housing authorities — supplemented by healthcare (e.g., John R. Oishei Children's Hospital site work on a $270M facility), education, recreation, and commercial developer engagements. Long-cycle engagements include a NYSDOT biennial bridge inspection contract covering 1,061 bridges/1,800+ spans and term consultant arrangements with SUNY. Notable capital projects include the $27.7M Buffalo Niagara International Airport Runway 5-23 Reconstruction (175,000 sq. yards), completed on schedule and within budget.

The go-to-motion is enterprise field sales into a defined Western New York catchment, supplemented by reputation-driven inbound from a 60-year project portfolio and regional industry recognition (APWA Project of the Year, Brick by Brick awards). Distribution is direct via principals embedded in project delivery, with a prime-consultant/subconsultant delivery model using partners such as Union Concrete, C&S Companies, Foit-Albert, Atlantic Testing, and Terracon for specialized scopes. Marketing relies on a project gallery, awards, BEAM community involvement, and a modest LinkedIn/Facebook/Twitter presence rather than paid demand generation. Following Gregory Hewitt's 2018 retirement, ownership expanded to seven principals in 2022 under President and CEO John DiDonato (P.E.), establishing a generational succession platform.

Name

DiDonato Associates

Legal name

DiDonato Associates Engineering and Architecture, P.C.

Website

https://didonatoassociates.com

Company type

Private

Founded year

1965

Operating status

Operating

Headcount range

11–50 employees

Short description

DiDonato Associates is a Buffalo-based engineering and architecture firm founded in 1965 that provides civil, structural, aviation, and architectural design plus construction administration services to public and private clients across Western New York state.

Ownership category

akta.pro rank

Headquarters

HQ city

Buffalo

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

Revenue model

1. Professional Services: Revenue generated through professional engineering and architecture service contracts with government agencies, municipalities, airports, universities, and private developers. Services include civil engineering, structural engineering, architectural design, construction administration, and inspection services billed on a project basis.

Pricing tiers

Go-to-market motion1 record

Distribution channels3 records

Marketing channels4 records

Core offering

DiDonato Associates is a Buffalo, New York-based professional engineering and architecture firm providing civil engineering, structural engineering (buildings and bridges), architectural design, aviation design, transportation engineering, and construction administration/inspection services. Founded in 1965 and employing 11–50 staff, the firm serves government agencies, municipalities, airports, universities, healthcare facilities, public-housing authorities, and select private developers in the Western New York region.

Product overview

DiDonato Associates is a professional engineering and architecture firm offering integrated design services. The company provides Civil Engineering (roadway rehabilitation, complete streets, stormwater management), Structural Engineering (building and bridge design, inspection, repair), Architecture (planning, design, code review, historic preservation, LEED/sustainable), Aviation Design (airfield planning, runway/taxiway design), Construction Services (bidding, administration, inspection), Transportation Engineering, and Scoreboard/LED Display structural design. Services are delivered through professional project teams rather than a software platform.

Differentiator

Problem solved

Functional benefit

Products and services

• Civil Engineering Services Site development, grading, drainage, utilities, and public-infrastructure civil engineering for municipalities, agencies, and private developers in Western New York.
• Structural Engineering Services (Buildings) Structural analysis and design for commercial, institutional, and public buildings, led by a P.E./S.E. licensed structural engineer.
• Structural Engineering Services (Bridges) Structural design and analysis for bridges and related transportation structures serving public-sector clients in Western New York.
• Architectural Design Services Licensed architectural (AIA) design for public, institutional, healthcare, and private development projects, including sustainable-design (LEED AP) capabilities.
• Aviation Design Services Engineering and design services for airports and aviation facilities, supporting airport authorities and aviation-related public-sector clients in the region.
• Transportation Engineering Services Roadway, traffic, and transportation infrastructure engineering for public-sector transportation clients, led by a licensed Professional Engineer.
• Construction Administration and Inspection Services Construction-phase administration, oversight, and inspection services for public and institutional projects designed by the firm.
• Scoreboard and LED Display Structural Design Specialty structural design services for scoreboards and LED display structures, including support-structure engineering for venues and facilities.

Quantifiable outcome

• Over 25 years of aviation design experience at regional airports
• +2 more outcomes

Named customers8 records

Segments9 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

13 partnerships are on record, tiered core, supporting and minor.

• Union Concrete & Construction Corp.coreImplementation/ SI/ Consulting Partner · 1 September 2022General contractor on major infrastructure projects including BNIA Runway 5-23 Reconstruction ($27.7M). Long-standing collaborative relationship on airport and infrastructure projects throughout Western New York.
• C&S Cos.supportingTechnology or Integration · 1 September 2022Electrical design partner on BNIA Runway 5-23 Reconstruction project, providing specialized aviation electrical systems design including runway lighting and signage.
• RDM International IncminorImplementation/ SI/ Consulting PartnerContractor on BNIA Runway 5-23 project providing specialized services.
• Foit-Albert AssociatesminorImplementation/ SI/ Consulting PartnerEngineering consultant on BNIA Runway 5-23 project.
• Atlantic Testing LaboratoriesminorImplementation/ SI/ Consulting PartnerMaterials testing services on BNIA Runway 5-23 project.
• TerraconminorImplementation/ SI/ Consulting PartnerEnvironmental and geotechnical consulting on BNIA Runway 5-23 project.
• WoolpertminorImplementation/ SI/ Consulting PartnerProfessional consulting services on BNIA Runway 5-23 project.
• Mitsubishi Electric Power Products, Inc.coreStrategic or Co-development PartnerRetained by Mitsubishi for Structural Engineering Services for Two Penn Station canopy design in New York City. Responsible for structural design of secondary structure supporting LED panel facade.
• WendelsupportingImplementation/ SI/ Consulting PartnerEngineering consultant on Young Street Corridor project, recognized for APWA NY Project of the Year Award.
• KHEOPSsupportingImplementation/ SI/ Consulting PartnerEngineering consultant on Young Street Corridor project.
• EDRsupportingImplementation/ SI/ Consulting PartnerEngineering consultant on Young Street Corridor project.
• SJB ServicessupportingImplementation/ SI/ Consulting PartnerEngineering consultant on Young Street Corridor project.
• Scott Lawn Yard Inc.supportingImplementation/ SI/ Consulting PartnerContractor on Young Street Corridor project.

Scale indicators2 records

Recent moves6 records

Expansion highlights5 records

Direct peers

• Erdman Anthony: Rochester, NY-based multi-discipline engineering firm providing civil, structural, transportation, and facilities engineering across Upstate NY. Direct peer for civil/structural and transportation engineering services.
• Nussbaumer & Clarke: Buffalo, NY-based civil engineering, surveying, and construction services firm. Direct peer serving WNY municipalities on roadway, bridge, and infrastructure projects.
• Foit-Albert Associates: Buffalo, NY-based engineering and architecture firm with similar civil/structural/architecture/aviation capability. Direct peer for WNY municipal, airport, and institutional work; partner on BNIA Runway 5-23.
• C&S Companies: Syracuse-based engineering, architecture, planning, and construction services firm. Direct peer on aviation/civil/structural work; partnered with DiDonato on BNIA Runway 5-23 for aviation electrical systems design.
• Barton & Loguidice: Multi-office NY-based engineering, planning, and landscape architecture firm. Direct peer for municipal infrastructure, airports, and transportation engineering work in the NY State market.
• Wendel: Multi-discipline engineering, architecture, and energy-efficiency firm headquartered in Buffalo, NY. Direct comparable in civil/structural/architecture services to WNY municipal and institutional clients; partner alongside DiDonato on Young Street Corridor (APWA award-winning project).
• Fisher Associates: New York State-based civil/structural engineering, surveying, and environmental firm. Direct peer serving similar municipal and transportation clients across Upstate NY.
• Clark Patterson Lee: Rochester, NY-based engineering, architecture, and surveying firm with a NY statewide footprint. Direct peer on municipal, transportation, education, and institutional design work in the same Upstate NY market.
• LaBella Associates: Rochester, NY-based engineering, architecture, and environmental services firm operating across NY, PA, and the Southeast. Direct peer for municipal, education, aviation, and institutional projects of comparable scale.

Broad incumbents

• Tetra Tech: Global consulting and engineering firm with a broad water, environment, infrastructure, and aviation portfolio. Competitor in the broader engineering services market, though far larger and operating nationally rather than regionally.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/DiDonato_AE
• Facebookfacebook.com/DiDonato-Associates-288452577834993
• LinkedInlinkedin.com/company/didonato-associates

Revenue estimate

Valuation estimate

Number of profiles

Profiles10 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 DiDonato Associates