Kleinfelder Overview

  • Year Founded
  • 1961

Year Founded

  • Status
  • Private

  • Employees
  • 3,300

Employees

  • Latest Deal Type
  • Debt

  • Financing Rounds
  • 7

  • Investments
  • 25

Kleinfelder General Information

Description

Operator of a full-service construction consultancy firm for transportation, water, energy, and other private infrastructure sectors. The company offers to consult in architecture, civil and structural engineering, construction management, environmental analysis and remediation, and natural resource management, enabling clients to get their industrial works done in a short time with relevance.

Contact Information

Website
www.kleinfelder.com
Formerly Known As
Stockton Testing and Controls
Ownership Status
Privately Held (backing)
Financing Status
Private Equity-Backed
Corporate Office
  • 770 First Avenue
  • Suite 400
  • San Diego, CA 92101
  • United States
+1 (619)
Primary Industry
Construction and Engineering
Other Industries
Consulting Services (B2B)
Vertical(s)
Industrials
Corporate Office
  • 770 First Avenue
  • Suite 400
  • San Diego, CA 92101
  • United States
+1 (619)

Kleinfelder Timeline

2022202320242025
Financing RoundCaptured Employee CountEstimated Employee Growth

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Kleinfelder Valuation & Funding

Deal Type Date Amount Valuation/
EBITDA		 Post-Val Status Debt

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Kleinfelder Comparisons

Description
Primary
Industry
HQ Location
Employees
Total Raised
Post Valuation
Last
Financing
Details
Operator of a full-service construction consultancy firm for transportation, water, energy, and other private infrastruc
Construction and Engineering
San Diego, CA
3,300 As of 2025

Overland Park, KS
 

Orlando, FL
 
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Kleinfelder Competitors (71)

One of Kleinfelder’s 71 competitors is Black & Veatch, a Corporation company based in Overland Park, KS.

Company Name Financing Status Location Employees Total Raised Last Financing Date/Type Last Financing Amount
Black & Veatch Corporation Overland Park, KS
Ardaman & Associates Corporate Backed or Acquired Orlando, FL
Hill International Private Equity-Backed Mount Laurel, NJ
SMEC Private Equity-Backed Sydney, Australia
Geosyntec Consultants Private Equity-Backed Boca Raton, FL
You’re viewing 5 of 71 competitors. Get the full list »

Kleinfelder Patents

  • 1

    Total Documents Applications and Grants

  • Total Patents Families

  • 1

    Granted

  • Pending

  • Expiring in next 12 mo

Kleinfelder Recent Patent Activity

Publication ID Patent Title Status First Filing Date Technology (CPC) Citations
US-11129377-B1 Avian nest deterrent system Active 21-May-2018

Kleinfelder Signals

Growth Rate

Weekly
Growth
Weekly Growth

Size Multiple

Median
Size Multiple

Key Data Points

Similarweb Unique Visitors

Majestic Referring Domains

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Kleinfelder Investors

Investor Name Investor Type Holding Investor Since Participating Rounds Contact Info

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Kleinfelder Investments & Acquisitions (25)

Kleinfelder’s most recent deal was a Buyout/LBO with Veenstra & Kimm. The deal was made on 09-Apr-2025.

Company Name Deal Date Deal Type Deal Size Industry Lead Partner
Veenstra & Kimm 09-Apr-2025 Buyout/LBO Consulting Services (B2B)
Doucet & Associates 31-May-2023 Buyout/LBO Construction and Engineering
Century Engineering 07-Dec-2021 Merger/Acquisition Construction and Engineering
Gas Transmission Systems 19-Oct-2020 Buyout/LBO Construction and Engineering
Poggemeyer Design Group 13-Oct-2020 Buyout/LBO Construction and Engineering
You’re viewing 5 of 25 investments and acquisitions. Get the full list »

Kleinfelder Affiliates

Subsidiaries (3)

Name Industry Location Year Founded
Gas Transmission Systems Concord, CA 1998
Doucet & Associates Austin, TX 1992
Veenstra & Kimm West Des Moines, IA 1961

Kleinfelder FAQs

  • When was Kleinfelder founded?

    Kleinfelder was founded in 1961.

  • Where is Kleinfelder headquartered?

    Kleinfelder is headquartered in San Diego, CA.

  • What is the size of Kleinfelder?

    Kleinfelder has 3,300 total employees.

  • What industry is Kleinfelder in?

    Kleinfelder’s primary industry is Construction and Engineering.

  • Is Kleinfelder a private or public company?

    Kleinfelder is a Private company.

  • What is Kleinfelder’s current revenue?

    The current revenue for Kleinfelder is .

  • How much funding has Kleinfelder raised over time?

    Kleinfelder has raised $17.1M.

  • Who are Kleinfelder’s investors?

    Lindsay Goldberg has invested in Kleinfelder.

  • Who are Kleinfelder’s competitors?

    Black & Veatch, Ardaman & Associates, Hill International, SMEC, and Geosyntec Consultants are some of the 71 competitors of Kleinfelder.

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