Kleinfelder
Kleinfelder is an employee-owned engineering, environmental, and architecture consulting firm with 3,300+ professionals across 100+ offices in the U.S., Canada, and Australia, serving primarily U.S. federal agencies and municipal governments with multidisciplinary infrastructure and trenchless rehabilitation services.
- Company typePrivate
- Founded1961
- HeadquartersSan Diego, United States
- Headcount1,001–5,000
- GTM typeB2B
- OfferingServices
What Kleinfelder does
Kleinfelder is an employee-owned engineering, science, and architecture consulting firm founded in 1961 and headquartered in San Diego, California. The firm employs over 3,300 professionals across more than 100 office locations in the United States, Canada, and Australia, delivering multidisciplinary engineering services spanning civil, structural, environmental, and infrastructure disciplines. Its service portfolio includes design, construction, environmental consulting, and specialized trenchless rehabilitation such as UV cured-in-place pipe (UV-CIPP) technology for large-diameter storm drain infrastructure.
The company serves a primarily federal government client base — including the U.S. Army Corps of Engineers, Naval Facilities Engineering Systems Command, and the General Services Administration — alongside municipal clients such as the City of Encinitas. Kleinfelder generates revenue through project- and contract-based professional services engagements under an enterprise field sales model, with dedicated federal market leadership coordinating cross-agency business development. The firm is privately held under private equity sponsor Lindsay Goldberg and has executed four acquisitions since 2020 (Garcia & Associates, Century Engineering, Doucet & Associates, and Veenstra & Kimm) to broaden its geographic and capability footprint.
Operationally, Kleinfelder combines traditional engineering consulting with specialized rehabilitation technology and has invested in leadership scaling, including the 2026 appointments of Ann Massey as President and Nicholas Mitrakis as EVP and CFO, alongside a National Federal Market Manager role. The firm has been recognized for trenchless technology innovation, including the 2024 Trenchless Technology Rehabilitation Project of the Year Runner Up for the Moonlight Beach UV-CIPP project.
Kleinfelder firmographics
Firmographics- Name
- Kleinfelder
- Legal name
- Kleinfelder Group, Inc.
- Website
- https://kleinfelder.com
- Company type
- Private
- Founded year
- 1961
- Operating status
- Operating
- Headcount range
- 1,001–5,000 employees
- Short description
- Kleinfelder is an employee-owned engineering, environmental, and architecture consulting firm with 3,300+ professionals across 100+ offices in the U.S., Canada, and Australia, serving primarily U.S. federal agencies and municipal governments with multidisciplinary infrastructure and trenchless rehabilitation services.
- Ownership category
- akta.pro rank
Kleinfelder industry classification
Industry- Product category
- Engineering Consulting Services
- NAICS
- Architectural, Engineering, and Related Services (5413), Environmental Consulting Services (54162)
- SIC
- Services-Engineering Services (8711), Heavy Construction Other Than Bldg Const - Contractors (1600)
- akta.pro primary industry
- Civil & Structural Engineering Consulting (BPAHAIAA)
- akta.pro secondary industries
- Public Works General Contracting (IMAFAAAG), Construction Management & Delivery (EPCM/CMAR/Design-Build Oversight) (EUANALAE)
Keywords
Where Kleinfelder is headquartered
LocationHeadquarters
- HQ city
- San Diego
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
Kleinfelder business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Engineering and Professional Services: Kleinfelder generates revenue through providing multidisciplinary engineering and environmental services to government and commercial clients, including project delivery, design, and environmental consulting services. Revenue is likely project and contract-based, with federal contracts representing a significant growth focus area.
Go-to-market motion2 records
Distribution channels1 record
Marketing channels2 records
Kleinfelder product offering
Product offeringCore offering
Kleinfelder provides multidisciplinary engineering, environmental, and architecture consulting services to federal, state, municipal, and commercial clients. The firm delivers civil, structural, environmental, and infrastructure engineering solutions, including trenchless pipe rehabilitation, design, construction management, and environmental compliance services. With 3,300+ professionals across 100+ office locations in the US, Canada, and Australia, the firm executes projects for major federal agencies and municipal governments.
Product overview
Kleinfelder is an engineering and professional services firm that offers multidisciplinary engineering services. Based on the available source data, the company provides engineering, design, and environmental services through acquisitions of firms such as Century Engineering, Inc. (a multidisciplinary engineering firm based in the Mid-Atlantic region) and Veenstra & Kimm (a design, engineering, and environmental services firm). The company employs over 3,300 professionals across more than 100 office locations in the United States, Canada, and Australia. No specific named product modules or distinct service offerings are detailed in the provided source material.
Differentiator
Problem solved
Functional benefit
Products and services
- Civil and Structural Engineering Services Multidisciplinary civil and structural engineering services for infrastructure projects, delivered to federal, state, municipal, and commercial clients. Includes planning, design, and construction phase engineering support.
- Environmental Engineering and Consulting Services
- Architecture and Design Services
- UV-CIPP Pipeline Rehabilitation Services
- Federal Infrastructure Project Delivery
- Municipal Engineering Services
Quantifiable outcome
- Largest single-site large diameter UV CIPP installation by cumulative size ever undertaken at 855 total linear feet of 72-in. diameter liner
Companies that use Kleinfelder
Customer profileNamed customers4 records
Segments2 records
Ideal customer profiles2 records
Kleinfelder technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature1 record
Kleinfelder partnerships and signals
Strategic signalScale indicators3 records
Recent moves6 records
Expansion highlights5 records
Kleinfelder competitors and assessment
Company assessmentDirect peers
- HDR: HDR is an employee-owned engineering, architecture, environmental, and construction services firm — structurally and operationally similar to Kleinfelder — with comparable federal, transportation, water, and environmental practices across North America.
- GHD: GHD is a privately held, employee-owned engineering and environmental consultancy operating across the U.S., Canada, and Australia — directly mirroring Kleinfelder's trilateral geographic footprint and multidisciplinary service mix.
- Stantec: Stantec is a publicly traded engineering, environmental, and infrastructure consulting firm comparable to Kleinfelder across service mix, customer base (including municipal and federal), and North American footprint, with significant overlap in environmental and water/wastewater practices.
- Tetra Tech: Tetra Tech is a leading consulting and engineering firm specializing in water, environment, and sustainable infrastructure, with a strong federal practice and service mix closely aligned with Kleinfelder's environmental and infrastructure rehabilitation focus.
- Brown and Caldwell: Brown and Caldwell is a privately held environmental engineering and consulting firm specializing in water and wastewater infrastructure for municipal and federal clients, with overlap to Kleinfelder's environmental and utility infrastructure rehabilitation work.
- Burns & McDonnell: Burns & McDonnell is a 100% employee-owned engineering, construction, and architecture firm with strong federal and critical infrastructure practices, directly comparable to Kleinfelder in ownership structure, customer mix, and multidisciplinary delivery model.
Broad incumbents
- AECOM: AECOM is a global infrastructure consulting firm with federal, environmental, and engineering practices that directly overlap Kleinfelder's multidisciplinary engineering and federal services portfolio, though at significantly larger scale and broader service breadth.
- WSP USA: WSP USA is one of the largest engineering consultancies in North America and a direct competitor in civil, structural, environmental, and federal infrastructure work; Kleinfelder's new CFO Nicholas Mitrakis previously served as SVP and Corporate Controller at WSP USA, reflecting direct talent flow between the firms.
- Arcadis: Arcadis is a global design and consultancy firm with significant North American operations in water, environmental, and resilience services that overlap Kleinfelder's environmental and infrastructure rehabilitation practices.
- Jacobs Solutions: Jacobs operates a federal and civilian infrastructure services business (including PA Consulting-adjacent capabilities) that competes with Kleinfelder for U.S. Army Corps of Engineers, NAVFAC, and GSA contracts, while also offering design and program management at larger scale.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights6 records
Customer concentration
Kleinfelder social profiles
Digital presenceKleinfelder financial estimates
Financial estimateRevenue estimate
Valuation estimate
Kleinfelder leadership team
Management profileNumber of profiles
Profiles7 records
Kleinfelder subsidiaries and ownership
Company hierarchySubsidiaries2 records
Kleinfelder funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Kleinfelder M&A and investment
M&A and investmentM&A4 records
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Kleinfelder
What does Kleinfelder do?
Kleinfelder provides multidisciplinary engineering, environmental, and architecture consulting services to federal, state, municipal, and commercial clients. The firm delivers civil, structural, environmental, and infrastructure engineering solutions, including trenchless pipe rehabilitation, design, construction management, and environmental compliance services. With 3,300+ professionals across 100+ office locations in the US, Canada, and Australia, the firm executes projects for major federal agencies and municipal governments.
Is Kleinfelder a public or private company?
Kleinfelder is a private company. It is classified as private equity controlled and is currently operating.
When was Kleinfelder founded?
Kleinfelder was founded in 1961. It employs 1,001 to 5,000 people.
Where is Kleinfelder based?
Kleinfelder is headquartered in San Diego, United States, in the North America region.
How does Kleinfelder make money?
One revenue line is on record: engineering and Professional Services.
Who are Kleinfelder's main competitors?
Direct peers on record are HDR, GHD, Stantec, Tetra Tech, Brown and Caldwell and Burns & McDonnell. Broad incumbents are AECOM, WSP USA, Arcadis and Jacobs Solutions.
Does Kleinfelder have an API?
No public API is recorded for Kleinfelder.
What industry is Kleinfelder in?
Kleinfelder's product category is Engineering Consulting Services. Its primary akta.pro industry code is BPAHAIAA, Civil & Structural Engineering Consulting, with a secondary code of IMAFAAAG, Public Works General Contracting. Its NAICS code is 5413 and its SIC code is 8711.