What Mark Thomas does

Mark Thomas & Company, Inc. is a 100% employee-owned civil engineering and infrastructure professional services firm headquartered in Roseville, California, with original operations dating to 1927 in San Jose and eleven offices across the state. The firm delivers planning, civil and structural engineering, construction management, land surveying, landscape architecture and urban design, district management, grant assistance, and environmental compliance services to local, regional, and state government agencies in California, with deep concentration in transportation and bridge sectors. Project examples include the first operational Diverging Diamond Interchange in California (SR 120/Union Road in Manteca), the first CHP-approved bus-on-shoulder facility, the I-680/SR 4 interchange improvements ($191M), and surveying/right-of-way scope on the $5.5B LAX Landside Access Modernization Program for Los Angeles World Airports.

The firm's underlying technology stack includes ESRI ArcGIS StoryMaps, Bluebeam Studio Sessions, Ground Penetrating Radar, Electromagnetic utility locators, Mobile Terrestrial LiDAR, drones/UAVs, and 3D/VR visualization tools, with novel proprietary design methodologies across DDI, Ribbon Path interchanges, reversible bus lanes, and bus-on-shoulder facilities. The firm maintains leadership in California Construction Manager/General Contractor (CM/GC) project delivery and co-developed Caltrans DIB 90 design standards.

Mark Thomas generates revenue through fee-based professional services contracts procured via competitive bidding, RFQ/RFP processes, and direct negotiation with public agencies. Pricing is not publicly disclosed. Distribution is exclusively direct, with no resellers or partners, anchored by eleven California offices supporting relationship-led sales to municipal public works departments, county and regional transportation authorities, Caltrans, port authorities (Los Angeles and Long Beach), BART, water districts, and other special districts. Client concentration is 100% public sector, with a recurring client base spanning 17+ named agencies and 950+ documented projects.

Name

Mark Thomas

Legal name

Mark Thomas & Company, Inc.

Website

https://markthomas.com

Company type

Private

Founded year

1927

Operating status

Operating

Headcount range

501–1,000 employees

Short description

Mark Thomas is a 100% employee-owned California civil engineering and infrastructure professional services firm delivering planning, civil and structural engineering, construction management, surveying, landscape architecture, grant assistance, and district management to local, regional, and state government agencies statewide.

Ownership category

akta.pro rank

Headquarters

HQ city

San Jose

HQ country

United States

HQ region

North America

Offices11 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Professional Services Revenue: Mark Thomas generates revenue through professional services contracts with government agencies for planning, civil and structural engineering, construction management, land surveying, landscape architecture, and district management services. Projects are typically fee-based consulting engagements for capital improvement projects.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels6 records

Core offering

Mark Thomas is a California-based civil engineering and infrastructure professional services firm providing planning, civil and structural engineering, construction management, land surveying, landscape architecture and urban design, environmental compliance, grant assistance, and district management for local, regional, and state government agencies. The firm delivers capital improvement projects spanning roadways, bridges, highways, interchanges, transit facilities, parks, water/wastewater systems, and active transportation infrastructure across California.

Product overview

Mark Thomas is a civil engineering and infrastructure professional services firm offering a unified portfolio of integrated services. The core offerings span civil engineering, construction management, district management, grant assistance, environmental compliance, land surveying, landscape architecture & urban design, planning, and structures engineering. These services are delivered across multiple market sectors including active transportation, bridges, highways & interchanges, local roadways, parks & recreation, transit, utilities, and water/wastewater. The company operates as a single-service practice focused on capital improvement projects for local, regional, and state agencies, developing context-sensitive solutions to improve mobility in California communities.

Differentiator

Problem solved

Functional benefit

Products and services

• Civil Engineering Provides context-sensitive engineering solutions and responsive customer service for public works projects for local, regional, and state government agencies.
• Construction Management Provides high-quality oversight of construction projects for local agencies, including leadership in Construction Manager/General Contractor (CM/GC) project delivery in California with established relationships with Caltrans, Independent Cost Estimators, and CM/GC contractors.
• District Management Provides turn-key management, operation, maintenance, and administrative services for sanitary sewer districts and special districts.
• Grant Assistance Partners with clients to develop project funding strategies and author grant applications for transportation projects.
• Environmental Compliance Brings deep experience in CEQA/NEPA compliance for public works projects with focus on implementation.
• Land Surveying Provides comprehensive land surveying services, recognized as one of the West's most well-respected surveying service providers (ranked #4 in ENR West 2025 Surveying & Mapping), leveraging Ground Penetrating Radar, Electromagnetic Utility Locators, Mobile Terrestrial LiDAR, and UAVs/drones.
• Landscape Architecture & Urban Design Provides fully integrated and comprehensive landscape architecture services for public infrastructure and community projects.
• Planning Provides thoughtful and context-sensitive planning solutions for infrastructure projects across transportation, water, parks, and community development sectors.
• Structures Engineering Delivers transportation, flood control, and water/wastewater structure projects including bridges and complex bridge engineering.

Quantifiable outcome

• Designed California's first Diverging Diamond Interchange (DDI) at SR 120/Union Road in Manteca
• +2 more outcomes

Named customers17 records

Segments2 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Three partnerships are on record, tiered core.

• California Transportation Foundation (CTF)coreStrategic or Co-development Partner · 1 March 2025Mark Thomas's Director of Strategic Solutions Vince Mammano was appointed to the California Transportation Foundation Board of Directors, indicating a strategic partnership supporting transportation initiatives across California.
• International Union of Operating Engineers (IUOE) Local 3 and Local 12coreStrategic or Co-development PartnerMark Thomas partners with IUOE Local 3 and Local 12 to dispatch field staff for surveying, construction inspection, and sanitary sewer maintenance services. Field staff benefit from apprenticeship programs with on-the-job training.
• CaltranscoreStrategic or Co-development PartnerMark Thomas has built strong working relationships with Caltrans District offices and Headquarters over decades, including being the first consultant to design Caltrans facilities improvements. They deliver CM/GC projects with Caltrans and worked to establish DDI design standards (DIB 90).

Scale indicators11 records

Recent moves18 records

Expansion highlights5 records

Direct peers

• NV5 Global: California-headquartered multi-disciplinary engineering and consulting firm with significant transportation, civil, and surveying practices. Highly comparable in service mix, customer base (government agencies), and California-centric footprint, and serves as the closest publicly traded proxy for Mark Thomas.
• Kimley-Horn: Top U.S. employee-owned engineering consulting firm providing planning, transportation, civil, and surveying services to public-sector clients. Highly comparable private employee-owned model with similar multi-disciplinary service lines and a heavy transportation practice.
• Harris & Associates: California-based engineering and program management firm serving public agencies with civil engineering, construction management, and surveying services. Closely comparable as a mid-size California-focused engineering consulting peer with overlap on Caltrans and municipal clients.
• BKF Engineers: California-headquartered civil engineering, transportation, and land surveying firm serving public and private clients. Comparable in service scope (transportation, civil, surveying) and California geographic concentration.
• Stantec: North American engineering, architecture, and consulting firm with major transportation and infrastructure practices in California. Comparable services across planning, civil/structural engineering, surveying, and CM, though materially larger and globally diversified.
• HDR Inc. U.S. engineering consulting firm with one of the largest transportation practices nationally and significant California presence. Comparable in core transportation design, structures, and surveying services for public-sector clients.
• TRC Companies: U.S. engineering, consulting, and construction management firm with strong transportation and infrastructure practices, including in California. Comparable in serving Caltrans and regional transportation agencies with engineering and CM services.

Broad incumbents

• WSP Global: Global professional services firm with one of the largest transportation and infrastructure engineering practices globally and a substantial California office network. Overlaps significantly with Mark Thomas in transportation design and program management, but operates at much greater scale and breadth.
• Jacobs Solutions: Global engineering and professional services firm serving Caltrans, LAWA, and other California agencies on some of the largest transportation and aviation programs. Comparable technical capabilities but materially larger and globally diversified.
• AECOM: Global infrastructure consulting firm with major transportation, water, and environmental practices and a deep California presence. Comparable core services and government-agency client base, though operating at global scale and broader service breadth.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/markthomas_co

Revenue estimate

Valuation estimate

Number of profiles

Profiles15 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 Mark Thomas