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KLEINFELDER INC

UEI: SLED_AAF5315350BC93B1

KLEINFELDER INC is a federal contractor, registered under UEI SLED_AAF5315350BC93B1. It has been awarded $25,929,704 across 8 federal contracts. Primary work spans Unknown NAICS. Top awarding agencies include Department of Transportation, Puc Public Utilities Commsn, and Air Airport Commission.

Contact Information

Registration and classification details

Address123 Main St, City, ST 12345

Registration

UEI Code

SLED_AAF5315350BC93B1

Federal Contracting Overview

Award totals, agency breakdown, NAICS distribution, and geographic footprint.

AI Capability Profile

Kleinfelder Inc provides comprehensive professional engineering and technical services with a specialization in construction management and environmental planning. Their core capabilities include as-needed engineering design, construction management services, and environmental planning services. The...

Key Performance Metrics

Awards Count

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Past period of performance

Total Awards

All time

Contracts

Prime · all time

Subcontracts

Sub · all time

Grants

Prime · all time

Subgrants

Sub · all time

Award Analytics & Distribution

Awards by Agency

Department of Transportation$13.1M50.7%Puc Public Utilities Commsn$12.1M46.5%Air Airport Commission$706.3K2.7%

Other agencies (1 agencies, <0.5% each)$13.5K0.1%

Awards by NAICS

- Unknown NAICS$25.9M100%

Awards by Agency Over Time

Awards by Place of Performance

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SB Minor B-Replace existing soffit luminaire from HPS to LED lighting-San Diego County

Solicitation # 11A4454

California Department of Transportation

POSTED

DEADLINE

SB Minor B-Roadside Rehabilitation, Plant Establishment-San Diego County

Solicitation # 11A4457

California Department of Transportation

POSTED

DEADLINE

Environmental Laboratory Analysis Services (Drinking Water)This subcontract opportunity with the California Department of Transportation involves providing specialized environmental laboratory analysis services for drinking water samples on Caltrans facility projects. The selected provider will perform a comprehensive range of bacteriological and chemical tests, including Colilert P/A, Quanti-Tray MPN, Nitrite, Nitrate, Chlorine Residual, Pectinate Chloride, Lead, Copper, VOC, and SOC, ensuring all work adheres to Department of Health Services and Office of Drinking Water standards. To be eligible, contractors must maintain a physical laboratory located within California and hold a valid ELAP Certification. The primary deliverable for this engagement is the provision of certified laboratory analysis reports. The project is centered in Lassen, California, with a response deadline set for October 15, 2026.

California Department of Transportation

POSTED

DEADLINE

IFB Drinking Water Testing in Shasta, Siskiyou, Lassen, Plumas, and Tehama Counties

Solicitation # 02A2525

The California Department of Transportation (Caltrans) is soliciting bids for the analytical sampling and testing of drinking water across Shasta, Siskiyou, Lassen, Plumas, and Tehama Counties. The contractor will provide all necessary labor, equipment, and materials to perform bacteriological and chemical laboratory analysis for 14 Safety Roadside Rest Areas and three Commercial Vehicle Enforcement Facilities. Testing must be conducted according to Department of Health Services, Office of Drinking Water specifications, covering constituents such as lead, copper, nitrates, and various organic contaminants. The estimated period of performance runs from November 1, 2026, through October 31, 2029, with routine services performed during standard business hours and non-routine services as requested. To be eligible, bidders must be located within a 50-mile radius of Redding, California, and possess a valid Environmental Laboratory Accreditation Program (ELAP) Certification from the California State Water Resource Control Board. The contract will be awarded to the responsible bidder offering the lowest price. Bids must be submitted in physical format by October 15, 2026, and must include all required certifications, including the Bid Proposal, Civil Rights Laws Certification, and Darfur Contracting Act Certification. The agreement includes preferences for certified Small and Micro Businesses and incentives for Disabled Veteran Business Enterprises, with a combined cap of 100,000 dollars. Contractors must also comply with strict data encryption standards, organic waste recycling laws, and various Caltrans health and safety policies.

California Department of Transportation

POSTED

DEADLINE

Roadside Traffic Control for Vegetation ManagementThis subcontract for Roadside Traffic Control for Vegetation Management involves providing specialized vehicles and personnel to support prime contractors performing Caltrans roadside tree work in San Diego. The selected provider will be responsible for implementing lane closures and traffic diversions utilizing signage, cones, and trucks equipped with arrow boards, ensuring all operations strictly adhere to Caltrans traffic control manuals to maintain a safe work zone for vegetation management crews. Interested parties must be registered with the Department of Industrial Relations in accordance with Labor Code Section 1725.5. The solicitation was posted on October 1, 2026, with a response deadline of October 15, 2026. This opportunity falls under NAICS code 561990 and is managed through the California Department of Transportation.

California Department of Transportation

POSTED

DEADLINE

Tree Removal and Stump Grinding ServicesThis subcontract for Tree Removal and Stump Grinding Services supports Caltrans vegetation management projects in San Diego. The selected contractor will be responsible for the felling, removal, and stump grinding of trees, ensuring that all organic waste is chipped and hauled away in strict compliance with Senate Bill 1383 and Title 14 of the CCR. The scope of work requires the use of specialized equipment, including wood chippers, stump grinders, and hauling trucks, to deliver fully cleared sites. To be eligible, contractors must hold a C-49 Tree and Palm Contractor license and maintain active DIR registration. This opportunity is categorized under NAICS code 561730 and is managed through the California Department of Transportation. Interested parties must submit their responses by the deadline of October 15, 2026.

California Department of Transportation

POSTED

DEADLINE

Certified Tree Trimming and PruningThis subcontract for Certified Tree Trimming and Pruning involves performing thinning, pruning, and skirting of trees and shrubs for prime contractors on Caltrans vegetation management projects located in San Diego County. The selected provider must execute all cuts according to specific Tree Diagrams, ensuring the proper management of branch collars and bark ridges through the use of cranes, hoists, and professional pruning tools to meet all Caltrans specifications. To qualify for this engagement, contractors must hold a C-49 Tree and Palm Contractor license, an ISA Arborist Certification, and OSHA 1910.269 Line-Clearance certification. The opportunity was posted on October 1, 2026, with a response deadline of October 15, 2026, falling under NAICS code 561730.

California Department of Transportation

POSTED

DEADLINE

*SB/DVBE ONLY* IFPQ 11A4446 Tree Trimming, Pruning, and Removal Services in San Diego County

Solicitation # 11A4446

The California Department of Transportation is soliciting price quotes for tree trimming, pruning, and removal services within Caltrans District 11 in San Diego County. The scope of work includes thinning, skirting, chipping, and stump grinding for trees, shrubs, and vines, specifically those adjacent to energized and non-energized power lines along Routes 5, 8, 52, 54, 805, and 94. The contractor is responsible for providing all labor, equipment, traffic control, and disposal services. Performance is estimated to run from November 9, 2026, through November 8, 2029. The contract is restricted to certified Small Businesses, Microbusinesses, or Disabled Veteran Business Enterprises, and bidders must hold current Arborist Certification from the International Society of Arboriculture and Line-Clearance Tree Trimmer certification per OSHA 1910.269. The agreement will be awarded to the responsible bidder offering the lowest price quote, provided it does not exceed the maximum limit of 484,000 dollars. Key compliance requirements include adherence to California Labor Code Section 1776 for payroll records and prevailing wage requirements for bids exceeding 15,000 dollars. Contractors must ensure annual certification of personnel hoists and follow strict safety standards, including the use of Class II reflective wear. Payment is governed by Government Code Chapter 4.5, with a requirement that subcontractors be paid within seven calendar days of the prime contractor's receipt of payment. All quotes must be submitted by October 15, 2026.

California Department of Transportation

POSTED

DEADLINE

Environmental Compliance (Lead & Waste)This subcontract for the California Department of Transportation focuses on environmental compliance for bridge projects located in Kern. The selected provider will be responsible for developing and managing lead compliance and hazardous waste disposal plans for prime contractors, ensuring all activities adhere to Senate Bill 1383 and Title 14 of the California Code of Regulations. Key deliverables include the creation of approved Lead Compliance Plans and the provision of waste manifests. The role requires extensive coordination with the California Department of Toxic Substance Control and the CA RWQCB Region 5F. To qualify, the contractor must maintain lead-safe certification and ensure strict adherence to Cal/OSHA safety standards. Interested parties must submit their responses by October 14, 2026.

California Department of Transportation

POSTED

DEADLINE

Treated Lumber Supply & InstallationThis subcontract involves the supply and installation of treated lumber for prime contractors working on California Department of Transportation bridge repair projects in Kern. The scope of work specifically includes the installation of temporary support lumber and timber, as well as pile cap supplements measuring 1 foot 2 inches deep, 6 inches thick, and 13 feet long. The contractor is responsible for utilizing heavy lifting equipment for the placement of pile caps and ensuring all materials strictly adhere to Caltrans specifications for treated timber. The project is categorized under NAICS code 238990 and is managed through the California Department of Transportation. Interested parties must adhere to the established timeline, with the solicitation posted on October 1, 2026, and a response deadline of October 14, 2026. The final deliverable consists of the fully installed pile cap supplements and temporary supports at the designated performance site.

California Department of Transportation

POSTED

DEADLINE

Pavement Milling & Tack Coat ApplicationThis subcontract for Pavement Milling and Tack Coat Application involves performing asphalt removal and surface preparation for prime contractors on Caltrans bridge approach projects located in Kern. The scope of work includes cold planing approximately 530 square yards of asphalt concrete pavement and applying roughly 0.15 tons of tack coat using specialized cold planing machines and distributors to ensure the milled surface is properly prepared for subsequent overlay or repair. All operations must strictly adhere to the Caltrans 2025 Standard Specifications. The opportunity was posted on October 1, 2026, with a response deadline of October 14, 2026. This project falls under NAICS code 237310 and is associated with the California Department of Transportation.

California Department of Transportation

POSTED

DEADLINE

Traffic Control & Signage ServicesThis subcontract for Traffic Control and Signage Services involves providing comprehensive traffic management and safety signage installation for prime contractors working on Caltrans bridge repair projects in Kern. The scope of work includes the installation and maintenance of Traffic Control Systems in accordance with Standard Plans T9, RSP T13, T13A, and T13B, as well as the deployment of construction area signs, portable changeable message signs, cones, and barricades to implement necessary lane and ramp closures. The selected provider must ensure all operations comply with the Caltrans 2025 Standard Specifications to deliver a fully compliant traffic control zone. This opportunity is categorized under NAICS code 561990 and is associated with the California Department of Transportation. Interested parties must respond by October 14, 2026.

California Department of Transportation

POSTED

DEADLINE

SB Minor B - Kern Bridge Repair failed bridges and approaches for Kern County

Solicitation # 06A3347

The California Department of Transportation is soliciting quotes for the SB Minor B Kern Bridge Repair project, which involves repairing failed bridges and approaches at Weed Creek Bridge and Broad Creek Bridge on Route 119 in Taft, Kern County. This solicitation is restricted to certified Small Businesses holding a Class A license. The scope of work includes bridge and approach repairs, the installation of temporary high visibility fencing to protect environmentally sensitive areas, water quality monitoring for concrete removal and channel cleaning, and traffic management according to conventional highway lane requirements. The project must be completed within 30 working days and is governed by the 2025 Edition of the Standard Specifications. The approximate magnitude of work is 325,000.00 dollars, and any bid exceeding 484,000.00 dollars will be rejected. Award will be granted to the lowest responsible contractor. Bids must be submitted on a unit price basis via email to Eva Clark by October 14, 2026. While there is no established DVBE contract goal, participation is encouraged. Successful bidders will be required to provide insurance and a payment bond if the total bid exceeds 25,000.00 dollars. Contractors must also certify compliance with various nondiscrimination laws and report any use of generative AI to avoid disqualification.

California Department of Transportation

POSTED

DEADLINE

Engine Emission ComplianceThis subcontract focuses on the supply and modification of engine components for Caltrans DOR F59PHI locomotive overhaul projects. The primary objective is to ensure that all engine systems meet the 40 CFR Part 1033 Tier 2 EPA emission requirements, necessitating a formal compliance certification for the delivered systems. The project is managed under the California Department of Transportation and will be performed in Alameda. Interested parties must submit their responses by December 22, 2026, in accordance with NAICS code 336412.

California Department of Transportation

POSTED

DEADLINE

Radio and Electronics OverhaulThis subcontract involves the overhaul of onboard radio and electronic communication systems for prime contractors working on Caltrans DOR F59PHI locomotive overhaul projects. The scope of work requires all overhauls to be performed in accordance with Technical Specification Section 4.17 to ensure the delivery of fully operational communication and electronic systems. The project is based in Alameda and is managed under the California Department of Transportation. Qualified bidders must possess the necessary electronics testing equipment and hold valid FCC certifications. The response deadline for this opportunity is December 22, 2026.

California Department of Transportation

POSTED

DEADLINE

Layover Heating System OverhaulThis subcontract opportunity involves the overhaul of locomotive layover heating systems for prime contractors working on Caltrans DOR F59PHI locomotive overhaul projects. The selected provider must possess specialized HVAC and heating system expertise specifically for rail applications to ensure all systems are delivered in full operational condition. All work must be performed in accordance with Technical Specification Section 4.16. The project is associated with the California Department of Transportation and will be performed in Alameda. Interested parties should note that the solicitation was posted on October 1, 2026, with a response deadline of December 22, 2026. The contract falls under NAICS code 238220.

California Department of Transportation

POSTED

DEADLINE

Fuel System OverhaulThis subcontract opportunity involves the overhaul of locomotive fuel systems for prime contractors working on Caltrans DOR F59PHI locomotive overhaul projects. The selected provider must perform all work in accordance with Technical Specification Section 4.15 to deliver fully functional fuel delivery systems. To successfully execute the contract, the contractor is required to possess and utilize specialized fuel system testing and leak detection equipment. The project is associated with the California Department of Transportation and will be performed in Alameda. Interested parties should note that the solicitation was posted on October 1, 2026, with a response deadline of December 22, 2026. The work falls under NAICS code 811310.

California Department of Transportation

POSTED

DEADLINE

Positive Train Control (PTC) System OverhaulThis subcontract involves the overhaul and certification of Positive Train Control (PTC) systems for prime contractors working on Caltrans DOR F59PHI locomotive overhaul projects. The scope of work requires the delivery of fully operational and certified PTC systems, strictly adhering to Technical Specification Section 4.14. Due to the technical nature of the project, the contractor must possess specialized electronics certification along with deep expertise in PTC software and hardware. The project is associated with the California Department of Transportation and will be performed in Alameda. Interested parties should note that the solicitation was posted on October 1, 2026, with a response deadline of December 22, 2026. The work falls under NAICS code 541512, focusing on the specialized technical requirements necessary for locomotive safety systems.

California Department of Transportation

POSTED

DEADLINE