Treadwell & Rollo, Inc.

What Treadwell & Rollo, Inc. does

Treadwell & Rollo, Inc. appears in the firmographics header as an 11-employee San Francisco-based firm founded in 1988, but the substantive source data set pertains to Langan Engineering and Environmental Services — a separate, larger entity founded in 1970 in Clifton, New Jersey, headquartered in Parsippany, NJ. Treadwell & Rollo was historically acquired by Langan; the input notes confirm "no information about Treadwell & Rollo, Inc. found in provided sources" and that the data "pertains to Langan Engineering and Environmental Services, a separate company." Based on the available Langan data, the firm is a premier integrated engineering and environmental consulting platform offering geotechnical, site/civil, environmental, energy, earthquake/seismic, geospatial, landscape architecture, and digital solutions, with 2,300 employees across 59 office locations in the US and internationally, and projects delivered in 100+ countries.

The firm operates a direct enterprise field-sales model serving developers, property owners, public agencies, corporations, institutions, and energy companies. Marquee engagements span hyperscale data centers (Vantage, CyrusOne), major airports (JFK Terminal 6, Newark Liberty Terminal A), healthcare systems (Hackensack University Medical Center, Penn Medicine, Children's Hospital of Philadelphia, NIH), large mixed-use developments (American Dream Meadowlands), federal work (60+ U.S. Embassies and Consulates), and higher education institutions. Revenue is generated through professional service fees on project-based, multi-year consulting engagements priced by scope and complexity rather than standardized tiers.

The technology stack combines traditional engineering disciplines with a Digital Solutions practice covering systems development, GIS mapping, environmental data management and analytics, EHS management, and asset/facility management — though no proprietary AI/ML model or named data flywheel is disclosed. The firm's competitive positioning rests on a "one-stop shop" multidisciplinary model, deep talent bench accumulated over 50+ years, ISO 27001-certified operations, and a programmatic M&A roll-up strategy with active Texas expansion (including the 2025 Kirkman Engineering acquisition).

Name

Treadwell & Rollo, Inc.

Website

https://treadwellrollo.com

Company type

Private

Headcount range

11–50 employees

Short description

Premier integrated engineering and environmental consulting firm (founded 1970) delivering geotechnical, site/civil, environmental, energy, and digital solutions to enterprise and government clients across 59 offices and 100+ countries.

Ownership category

akta.pro rank

Product category

Engineering Consulting Services

NAICS

Other Scientific and Technical Consulting Services (54169)

SIC

Services-Engineering Services (8711)

akta.pro primary industry

Geotechnical & Subsurface Engineering Consulting (BPAHAIAB)

Keywords

• Environmental consulting services
• Geotechnical engineering services
• Site civil engineering
• Environmental remediation services
• Engineering consulting

Headquarters

HQ city

Parsippany

HQ country

United States

HQ region

North America

Offices15 records

Markets served

GTM type

B2B

Offering type

Services

Cost components

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

Revenue model

1. Engineering and Environmental Consulting Services: Professional consulting services covering geotechnical engineering, site/civil engineering, environmental services, energy consulting, earthquake/seismic engineering, geospatial services, landscape architecture, land use planning, natural resources and permitting, PFAS remediation, demolition, and digital solutions. Revenue is generated through professional service fees for project-based consulting engagements.

Pricing tiers

Go-to-market motion1 record

Distribution channels1 record

Marketing channels7 records

Core offering

Treadwell & Rollo, Inc. is a San Francisco-based engineering and environmental consulting firm that provides civil, geotechnical, and environmental services for real estate development, redevelopment, and infrastructure projects. The firm specializes in site investigation, environmental assessment, and remediation support for property owners, developers, and public-sector clients throughout the San Francisco Bay Area.

Differentiator

Problem solved

Functional benefit

Products and services

• Geotechnical Engineering Services Subsurface investigation, soil and foundation analysis, and seismic site evaluation for building and infrastructure projects in the San Francisco Bay Area.
• Environmental Site Assessment and Remediation Services Phase I and Phase II environmental site assessments, contamination investigation, and remediation support for property owners, developers, and legal counsel during acquisitions and redevelopment.
• Civil Engineering and Site Development Consulting Civil engineering support for site layout, grading, drainage, and infrastructure coordination on real estate development and redevelopment projects.

Quantifiable outcome

• 2300 employees and 59 locations serving projects in 100+ countries
• +1 more outcomes

Named customers14 records

Segments7 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Partnerships

One partnership is on record.

• Kirkman EngineeringminorStrategic or Co-development PartnerLangan acquired Kirkman Engineering in the Dallas-Fort Worth Metroplex, expanding the firm's Texas presence as the Lone Star State business continues to grow. This acquisition joins other Texas-based firms that have joined Langan, strengthening local market capabilities.

Scale indicators6 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• AECOM: Global infrastructure consulting firm with extensive geotechnical, environmental, and site/civil practices. Comparable because it competes on many of the same real estate, transportation, and energy projects, often as a broad incumbent with deep resources.
• Stantec: International engineering, architecture, and environmental services firm. Comparable because it provides similar geotechnical, site/civil, and environmental remediation services to real estate, infrastructure, and institutional clients across North America.
• Tetra Tech: Global consulting and engineering firm with deep environmental and water practices and a meaningful geotechnical footprint. Comparable because it pursues similar federal, municipal, and private-sector environmental and infrastructure mandates.
• WSP USA: Global engineering consultancy with strong property, transportation, and environmental practices (including former Golder geotechnical expertise). Comparable because it competes on large, multi-disciplinary real estate and infrastructure projects.
• Langan Engineering and Environmental Services: Large integrated engineering and environmental consultancy operating as Treadwell & Rollo's apparent parent platform. Directly comparable because it offers the same core geotechnical, site/civil, and environmental consulting services at much greater scale and geographic reach.
• Jacobs Solutions: Global professional services firm delivering engineering, environmental, and construction services across infrastructure and built-environment markets. Comparable because it offers overlapping geotechnical and environmental consulting capabilities at significantly greater scale.

Direct peers

• Terracon Consultants: National geotechnical, environmental, construction materials, and facilities engineering consultancy. Comparable because it provides analogous site investigation, foundation design, and environmental consulting services to developers, owners, and public agencies.
• GeoEngineers: Earth science and engineering consulting firm specializing in geotechnical and environmental services. Comparable because it offers similar subsurface investigation, foundation engineering, and waterfront/infrastructure consulting with comparable project-based delivery.
• Kleinfelder: Engineering, environmental, and consulting services firm with strong geotechnical and site/civil capabilities. Comparable because it competes for the same real estate, transportation, and energy clients on similar scopes of subsurface and foundation work.
• Haley & Aldrich: Geotechnical and environmental engineering consulting firm with comparable subsurface, foundation, and brownfield remediation services. Comparable because it serves similar real estate, infrastructure, and institutional clients with project-based engineering consulting.

Market position

Strengths3 records

Weaknesses3 records

Competitive moat5 records

Key risks3 records

Key highlights3 records

Customer concentration

• LinkedInlinkedin.com/company/treadwell-&-rollo-inc.

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 Treadwell & Rollo, Inc.