Inspection Services

What Inspection Services does

Inspection Services, Inc. (ISI) is a privately held, woman-owned construction services firm headquartered at 1798 University Avenue, Berkeley, California, founded in 1995. The company provides quality assurance, quality control, special inspection, and materials testing services to public and private construction projects in Northern California. ISI serves four primary verticals: municipal and infrastructure (transportation, rail, aviation, utility, public works), K-12 and higher education facilities, hospitals and healthcare facilities (over 500 projects since 2010), and residential and commercial construction.

ISI's service portfolio is delivered through a 10,000-square-foot, full-service materials testing laboratory accredited by AMRL/AASHTO, CCRL, and Caltrans, complemented by a Geotechnical Laboratory enrolled in the AASHTO Reference Sample Program. Field services are performed by a team of professional engineers and multi-certified special inspectors holding ICC (Reinforced Concrete, Prestressed Concrete, Masonry), ACI, and AWS CWI credentials. ISI is a signatory to Operating Engineers Local Union No. 3 and supplements its operations with a Client Portal for report and project documentation access.

The business operates as a B2B professional services firm with a sales-led, relationship-driven go-to-market. Pricing is quote-based and project-driven rather than subscription-based, with revenue generated from per-project and hourly service engagements. The customer base is dominated by Bay Area public agencies including BART, SFMTA, Caltrain, Port of Oakland, EBMUD, City of Oakland, SFUSD, OUSD, San Francisco Public Works, and Moscone Convention Center, with cumulative project contract value exceeding $10 billion. Marketing channels are primarily direct enterprise engagement, RFP response, and industry referral, supported by a professional website and LinkedIn/Facebook presence. The company has approximately 50 technical and administrative professionals and is recognized among the largest women-owned businesses in the San Francisco Bay Area, with no disclosed external funding, M&A activity, or institutional investment.

Name

Inspection Services

Legal name

Inspection Services, Inc.

Website

https://inspectionservices.net

Company type

Private

Founded year

1995

Operating status

Operating

Headcount range

101–250 employees

Short description

Inspection Services, Inc. is a woman-owned Berkeley-based firm providing accredited special inspection, materials testing, and geotechnical services to Northern California public-sector construction projects, including transportation, education, and healthcare facilities.

Ownership category

akta.pro rank

Product category

Construction Materials Testing & Special Inspection Services

NAICS

Testing Laboratories and Services (541380), Building Inspection Services (541350), Testing Laboratories and Services (54138), Building Inspection Services (54135)

SIC

Services-Testing Laboratories (8734)

akta.pro primary industry

Structural & Civil Inspection (Steel, Concrete, Foundations) (EUAEAHAI)

akta.pro secondary industry

Welding Inspection & QA/QC (NDT, PWHT, Weld Procedure/Qualification) (EUAEAHAD)

Keywords

• Construction materials testing
• Special inspection services
• Geotechnical laboratory testing
• Construction quality assurance
• Building code compliance testing

Headquarters

HQ city

Berkeley

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, Infrastructure, Marketing or Sales

Revenue model

1. Special Inspection Services: ISI provides specialized inspection services for construction projects including soils, asphalt, reinforced concrete, precast concrete, post-tensioned concrete, fireproofing, shotcrete, structural masonry, structural steel, welding, and anchor installation. These are typically contracted services billed on a per-project or hourly basis as part of construction project compliance requirements.
2. Materials Testing Services: Laboratory and field materials testing services including concrete, masonry, soils, aggregate, and metals testing. Services are delivered through the company's AMRL/AASHTO, CCRL, and Caltrans-accredited facilities, billed per test or project scope.
3. Geotechnical Laboratory Testing: Geotechnical laboratory testing services with AMRL/AASHTO accreditation and Reference Sample Program enrollment, supporting construction project foundation and earthwork requirements.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels4 records

Core offering

ISI provides third-party QA/QC, code-required special inspection, and construction materials testing services for new construction and infrastructure projects. Work is performed by certified inspectors and supported by in-house, CCRL/AASHTO-accredited laboratories for soils, concrete, masonry, steel, and asphalt testing.

Product overview

Inspection Services, Inc. (ISI) offers a unified service portfolio centered on quality assurance, quality control, special inspection, and materials testing services for the construction industry. The core offerings consist of Special Inspection Services covering structural and materials inspection (including soils, concrete, masonry, steel, welding, and fireproofing), and Materials Testing delivered through a 10,000-square-foot, full-service materials testing laboratory with capabilities in concrete, masonry, soils, aggregate, and metals testing, plus Geotechnical Laboratory Testing. A Client Portal provides digital access to reports and project documentation. All services are delivered by certified professionals and are designed to ensure construction compliance with approved plans and specifications.

Differentiator

Problem solved

Functional benefit

Products and services

• Special Inspection Services Code-required special inspection and observation services for structural, life-safety, and other regulated building elements, performed by certified inspectors at construction sites across the San Francisco Bay Area. Used by contractors, owners, and public agencies on projects requiring DSA, OSHPD, and local building-department sign-off.
• Construction Materials Testing & Laboratory Services Accredited laboratory and field testing of construction materials including concrete, masonry, steel, and asphalt, performed in ISI's CCRL- and AASHTO-accredited laboratories and on project sites. Tests are conducted to ASTM and AASHTO standards and delivered as accepted reports for use by contractors, engineers, and building officials.
• Geotechnical Engineering Services Geotechnical laboratory testing of soils and aggregates to support site characterization, foundation design, and earthwork QA/QC. Services are used by civil and geotechnical engineers, contractors, and public agencies on building, infrastructure, and site-development projects in the Bay Area.

Quantifiable outcome

• Over 500 hospital and healthcare related projects successfully completed since 2010
• +2 more outcomes

Named customers10 records

Segments4 records

Ideal customer profiles3 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature3 records

Partnerships

One partnership is on record.

• Operating Engineers Local Union No. 3coreOthersISI is a signatory to the Operating Engineers Local Union No. 3, indicating a collective bargaining agreement covering hourly workers. Benefits include vacation, sick leave, holidays, retirement plan, medical insurance, and competitive wages.

Scale indicators5 records

Recent moves5 records

Expansion highlights4 records

Regional players

• Testing Engineers San Diego (TUSD): Southern California construction materials testing and special inspection firm. TUSD is comparable to ISI in service offering but operates in a different California region, illustrating regional vs. regional dynamics in the state's inspection market.
• Matrix Testing: Northern California materials testing and special inspection firm serving Sacramento and surrounding areas. Comparable service mix to ISI but focused on the Central Valley and state capital public-sector market rather than the Bay Area.

Broad incumbents

• NV5 Global: Technical engineering and consulting firm (including the legacy Atlas group) offering geotechnical, environmental, and construction quality assurance services. NV5 overlaps with ISI in special inspection and materials testing for infrastructure and public works, but at national scale and with additional tech-enabled capabilities.
• Terracon Consultants: National geotechnical, environmental, construction materials, and facilities engineering firm. Terracon competes with ISI in construction materials testing and special inspection across California, with broader geographic coverage and a larger bench of certified inspectors.
• Kleinfelder: One of the largest U.S. engineering, inspection, and environmental services firms with strong California presence. Kleinfelder competes with ISI on infrastructure special inspection and materials testing but operates at far greater scale and across multiple disciplines (geotechnical, environmental, civil).

Direct peers

• ENGEO Incorporated: Bay Area geotechnical engineering, geologic, and construction inspection firm. ENGEO overlaps directly with ISI on special inspection and materials testing for Bay Area infrastructure and transit projects.
• Ninyo & Moore Geotechnical Sciences: California-based geotechnical and geoenvironmental engineering firm with strong special inspection and materials testing practice. Ninyo & Moore is one of ISI's closest direct competitors, serving similar Bay Area / Southern California public and private construction clients with comparable scope.
• BAGG Engineers: Northern California materials testing, special inspection, and geotechnical firm. BAGG is a direct regional competitor of ISI serving similar Bay Area public agencies, school districts, and healthcare clients.
• Signet Testing Laboratories: California-based AASHTO-accredited construction materials testing and special inspection firm. Signet competes with ISI across structural, concrete, soils, and welding inspection on public and private construction projects in California.
• Twining, Inc. California construction materials testing and special inspection firm headquartered in Long Beach. Twining directly competes with ISI on structural, geotechnical, and welding inspection for public infrastructure and healthcare projects across California.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks7 records

Key highlights7 records

Customer concentration

• Facebookfacebook.com/inspectionservicesinc
• LinkedInlinkedin.com/company/inspection-services-inc-
• Xx.com/inspectionguru

Revenue estimate

Valuation estimate

Number of profiles

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 Inspection Services