United Engineering Resources

What United Engineering Resources does

United Engineering Resources, Inc. (UER) is a privately held, family-owned holding company headquartered in Sacramento, California, that operates two wholly owned subsidiaries — MatriScope Engineering Laboratories (founded 1995, incorporated 2003) and Signet Testing Labs (established 1966 in Hayward, California). Through these subsidiaries UER delivers geotechnical engineering, environmental engineering, materials testing, special inspections, nondestructive examination and testing (NDE/NDT), quality assurance/quality control programs with dedicated on-site laboratories, existing building survey and failure analysis, and construction safety services to public and private sector clients across Northern and Central California.

UER serves regulated, high-compliance end markets — primarily healthcare (OSHPD-jurisdiction), education (DSA-jurisdiction), civic and government infrastructure, commercial real estate, power and water, transportation, and hospitality and entertainment — with a marquee client roster that includes Kaiser Permanente, Sutter Medical Center, UC Davis, Stanford University, Caltrans, Genentech, Western Digital, DreamWorks, Golden 1 Center, Thunder Valley Casino & Resort, and the San Francisco City Hall seismic retrofit. Services are delivered under a professional services / project-based revenue model, typically through dedicated on-site laboratories staffed with full-time project engineers and technicians. The company's competitive position rests on multi-certified staff credentials (ACI, ASNT Level III, AWS, ICC, NICET, OSHA, OSHPD, DSA), accredited laboratory certifications (AASHTO, AMRL, Caltrans, CCRL, DSA, OSHPD, USACE), small business enterprise (SBE/LBE) certifications, and Operating Engineers Union Local No. 3 affiliation for inspection personnel. In 2025 UER was ranked #65 among the Top 80 Engineering Firms in Building Design + Construction's Giants 400 Report. The company is led by President & CEO Robert V. Tadlock and Vice President Sandra Tadlock, supported by VP of Business Development Ahmed Hamdy and CFO David Palermo.

Name

United Engineering Resources

Legal name

United Engineering Resources, Inc.

Website

https://uercorp.com

Company type

Private

Founded year

2014

Operating status

Operating

Headcount range

51–100 employees

Short description

United Engineering Resources is a family-owned Sacramento holding company operating MatriScope Engineering Laboratories and Signet Testing Labs, delivering geotechnical engineering, materials testing, special inspections, and QA/QC services to healthcare, education, civic, and commercial construction clients across Northern and Central California.

Ownership category

akta.pro rank

Headquarters

HQ city

Sacramento

HQ country

United States

HQ region

North America

Offices2 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Engineering and Inspection Services: UER generates revenue through providing specialized engineering services including geotechnical engineering, materials testing, construction inspection, and special inspections to construction projects. Revenue is project-based, generated through contracts with public and private sector clients for services delivered throughout the construction lifecycle.

Go-to-market motion1 record

Distribution channels1 record

Marketing channels2 records

Core offering

UER provides specialized engineering, inspection, and materials testing services for construction projects through its two operating subsidiaries, MatriScope Engineering Laboratories and Signet Testing Labs. Services are delivered via accredited laboratory facilities and on-site project teams staffed with certified engineers, inspectors, and technicians supporting geotechnical, environmental, materials testing, special inspection, nondestructive examination, QA/QC, and safety program needs. The firm serves public agencies, educational institutions, healthcare systems, and commercial developers across Northern and Central California.

Product overview

United Engineering Resources (UER) operates as a parent holding company with two wholly-owned operating subsidiaries: MatriScope Engineering Laboratories (founded 1995) and Signet Testing Labs (established 1966). UER provides the corporate foundation and organizational support that enables both firms to deliver a comprehensive suite of engineering and inspection solutions across California's public and private market sectors. The company offers geotechnical engineering, materials testing, special inspections, laboratory testing, nondestructive examination/testing, quality control/quality assurance, existing building survey, and safety services. The unified family of brands serves diverse market sectors including healthcare, commercial, civic, power & water, transportation, education, multifamily & mixed use, hospitality, arts & entertainment, and parking structures throughout Northern and Central California. In 2025, UER was ranked #65 among the Top 80 Engineering Firms in Building Design + Construction's Giants 400 Report.

Differentiator

Problem solved

Functional benefit

Products and services

• Geotechnical Engineering Subterranean geotechnical investigations for construction projects, including deep foundations, dewatering systems, driven piles, caissons, drilled piers, mat foundations, sheet piles, shoring and underpinning systems, and associated load test programs for project owners, developers, and general contractors.
• Existing Building Survey and Failure Analysis
• Laboratory Testing
• Nondestructive Examination / Testing (NDE/NDT)
• Special Inspections
• Quality Control / Quality Assurance (QA/QC)
• Safety Services

Quantifiable outcome

• Ranked #65 among Top 80 Engineering Firms in Building Design + Construction's Giants 400 Report in 2025

Named customers11 records

Segments7 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Two partnerships are on record, tiered core.

• MatriScope Engineering LaboratoriescoreOthersMatriScope Engineering Laboratories is a wholly owned subsidiary of UER, founded in 1995 and incorporated in 2003. It specializes in geotechnical and environmental engineering, materials testing, and special inspection services. Operates fully accredited materials testing laboratories and is recognized for proactive project management and innovative practices with nearly three decades of service.
• Signet Testing LaboratoriescoreOthersSignet Testing Labs is a wholly owned subsidiary of UER, established in 1966 and based in Hayward, CA. It brings decades of experience in engineering, construction inspection, and materials testing. Its inspection personnel are members of Operating Engineers Union Local No. 3, reinforcing commitment to skilled labor and technical integrity.

Scale indicators3 records

Recent moves6 records

Expansion highlights5 records

Broad incumbents

• Stantec: Stantec is a global engineering, architecture, and environmental services firm with a construction materials testing and inspection practice that competes for the same institutional and infrastructure clients UER serves in California.
• Kleinfelder: Kleinfelder is an employee-owned engineering, architecture, and science consulting firm delivering geotechnical, construction materials testing, and environmental services across the U.S. — the most directly comparable competitor to UER across California and beyond.
• Tetra Tech: Tetra Tech is a large global consulting and engineering firm providing geotechnical, environmental, water, and construction services — a much broader portfolio but overlapping directly with UER's environmental and infrastructure testing work.
• Terracon Consultants: Terracon is a national employee-owned consulting firm providing geotechnical, environmental, construction materials, and facilities engineering — the dominant independent competitor in UER's service categories.
• NV5 Global: NV5 is a publicly traded provider of technical engineering, environmental, and infrastructure consulting including geotechnical, materials testing, and construction inspection services — directly overlapping with UER's core offerings but at national scale.
• TRC Companies: TRC is a national engineering, consulting, and construction management firm with construction materials testing, geotechnical, and inspection capabilities that overlap with UER's service mix.

Direct peers

• Haley & Aldrich: Haley & Aldrich is an employee-owned geotechnical engineering and environmental consulting firm serving similar institutional, commercial, and infrastructure clients as UER.
• ECS Group (Engineering Consulting Services): ECS is one of the largest U.S. providers of geotechnical, environmental, construction materials, and facilities engineering services with a very similar services mix to UER's MatriScope and Signet Testing Labs businesses.
• GeoEngineers: GeoEngineers is an employee-owned geotechnical and environmental consulting firm with similar services (geotechnical engineering, NDT, environmental site assessment) targeted at public and private construction clients.

Regional players

• BSK Associates: BSK is a California-based engineering firm providing geotechnical engineering, environmental, and construction materials testing services — closely comparable to UER/MatriScope with significant California concentration.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/united-engineering-resources-inc-

Compliance25 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles5 records

Subsidiaries2 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 United Engineering Resources