INTERRA
INTERRA, Inc. is a privately held Midwest engineering services firm providing geotechnical engineering, construction inspection, and materials testing to government agencies and enterprise clients across Illinois and Wisconsin, supported by an IDOT/AASHTO-accredited laboratory in Bolingbrook, Illinois.
- Company typePrivate
- Founded1996
- HeadquartersBolingbrook, United States
- Headcount51–100
- GTM typeB2B
- OfferingServices
What INTERRA does
INTERRA, Inc. is a privately held professional services firm headquartered in Bolingbrook, Illinois, providing geotechnical engineering, construction inspection, environmental engineering, and construction materials testing services across the Midwest. Founded in 1996 as Great Lakes Soil & Environmental Consultants, Inc. and later rebranded to INTERRA, the firm operates a 13,000 sq. ft. AASHTO- and IDOT-accredited materials testing laboratory that anchors its QC/QA, geotechnical, and environmental service lines. Its technology footprint relies on industry-standard ASTM and AASHTO testing methods, including Dynamic Cone Penetrometer and Nuclear Density Gauge testing, deployed by field technicians and inspectors at project sites rather than software platforms.
The company generates revenue through project-based professional services contracts delivered as both prime consultant and subconsultant. Its customer base spans Illinois and Midwest government transportation agencies (IDOT, Illinois Tollway, CDOT, Cook County, DuPage County, City of Chicago, CTA, Metra, WISDOT), federal clients (U.S. Navy at Great Lakes Naval Facility), and enterprise customers (BNSF, United Airlines, ComEd, Peoples Gas, Exxon Mobil, Clayco, University of Chicago Medical Center, Macy's). Business development is relationship-driven and reinforced by IDOT and WISDOT prequalifications, AASHTO laboratory accreditation, and multiple DBE/MBE certifications that provide set-aside advantages on government-funded projects. INTERRA serves as subconsultant to larger engineering firms (TranSystems, Stanley Consultants, Burns & McDonnell, HR Green, exp US Services, Bowman Consulting, Patrick Engineering), embedding itself in the Midwest engineering services supply chain. Pricing is contract-negotiated and not publicly disclosed, with revenue directly tied to agency capital programs, project pipelines, and the firm's prequalification portfolio.
INTERRA firmographics
Firmographics- Name
- INTERRA
- Legal name
- INTERRA, Inc.
- Website
- https://interraservices.com
- Company type
- Private
- Founded year
- 1996
- Operating status
- Operating
- Headcount range
- 51–100 employees
- Short description
- INTERRA, Inc. is a privately held Midwest engineering services firm providing geotechnical engineering, construction inspection, and materials testing to government agencies and enterprise clients across Illinois and Wisconsin, supported by an IDOT/AASHTO-accredited laboratory in Bolingbrook, Illinois.
- Ownership category
- akta.pro rank
INTERRA industry classification
Industry- Product category
- Geotechnical & Construction Engineering Services
- NAICS
- Testing Laboratories and Services (54138), Engineering Services (541330), Environmental Consulting Services (541620)
- SIC
- Services-Testing Laboratories (8734)
- akta.pro primary industry
- Third-Party Certification, Code Compliance & Regulatory Inspection (ASME/API/ISO) (EUAEAHAN)
- akta.pro secondary industries
- All Appropriate Inquiries (AAI) & ASTM Phase I ESA (EUAHAEAA), Phase II ESA & Subsurface Investigation (Soil/Groundwater Sampling) (EUAHAEAB)
Keywords
Where INTERRA is headquartered
LocationHeadquarters
- HQ city
- Bolingbrook
- HQ country
- United States
- HQ region
- North America
Offices3 records
Markets served
INTERRA business model
Business model- GTM type
- B2B
- Offering type
- Services
- Cost components
- Personnel, Operations, Infrastructure, Technology or R&D, Marketing or Sales
Revenue model
- Professional Engineering Services: INTERRA generates revenue through providing professional engineering, inspection, and testing services on construction and infrastructure projects. Services are delivered as both prime consultant and subconsultant, working on project-based contracts with government agencies, municipalities, and private sector clients. Revenue comes from geotechnical engineering, construction inspection, quality assurance/quality control materials testing, environmental engineering, and construction management services.
Go-to-market motion1 record
Distribution channels2 records
Marketing channels3 records
INTERRA product offering
Product offeringCore offering
INTERRA provides professional engineering, inspection, and testing services for construction, infrastructure, environmental, and geotechnical projects. The firm delivers QC/QA construction materials testing, geotechnical engineering, environmental engineering, construction inspection, independent assurance, and construction management services, supported by an AASHTO- and IDOT-accredited 13,000 sq. ft. laboratory facility in Bolingbrook, IL.
Product overview
INTERRA is an industry leading provider of Engineering, Inspection, and Testing services delivered in support of construction, development, environmental, and geotechnical projects throughout the Midwest. The company offers a unified suite of professional services organized around six core offerings: QC & QA Construction Materials Testing, Geotechnical Engineering, Environmental Engineering, Construction Inspection, Independent Assurance, and Construction Management. These services are supported by the company's own AASHTO and IDOT accredited laboratory facility. The company operates across diverse end-user markets including aviation, bridge, commercial, county, education, federal, healthcare, landfill, municipal, railroad, recreation, transportation, and utilities sectors, serving clients such as state highway departments, federal agencies, FORTUNE 500 companies, municipalities, and healthcare corporations. Founded in 1996 as Great Lakes Soil & Environmental Consultants, Inc., the firm has established long-term relationships with clients requiring consistent, cost-effective engineering solutions.
Differentiator
Problem solved
Functional benefit
Products and services
- QC & QA Construction Materials Testing
- Geotechnical Engineering
- Environmental Engineering
- Construction Inspection
- Independent Assurance
- Construction Management
- INTERRA Laboratory Services
Quantifiable outcome
- INTERRA has established long-term client relationships since 1996, demonstrating consistent delivery of quality services.
- +3 more outcomes
Companies that use INTERRA
Customer profileNamed customers19 records
Segments5 records
Ideal customer profiles4 records
INTERRA technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
INTERRA partnerships and signals
Strategic signalPartnerships
15 partnerships are on record, tiered core.
- TranSystems CorporationcoreINTERRA serves as subconsultant to TranSystems Corporation providing construction inspection and testing services on Illinois Tollway projects including BNSF Railway bridge over Tri-State Tollway (I-294).
- Stanley ConsultantscoreINTERRA serves as subconsultant to Stanley Consultants providing Quality Assurance Materials Testing and Construction Inspection services for Central Street Bridge replacement project in Evanston.
- Burns & McDonnellcoreINTERRA was selected as subconsultant to Burns & McDonnell to provide Quality Assurance services for Peoples Gas State of the Art Training Center and Crawford Station Services Center projects in Chicago.
- Gonzalez Companies, LLCcoreINTERRA serves as subconsultant to Gonzalez Companies providing Quality Assurance Materials Testing and Construction Inspection services for Montrose Avenue Bridge project in Chicago.
- CKL Engineers, Ltd.coreINTERRA provides Materials Coordination, Quality Assurance Materials Testing, and Construction Inspection services as subconsultant to CKL Engineers for Illinois Tollway Systemwide CM Services Upon Request contract.
- Juneau Associates, Inc., P.C.coreINTERRA provides Materials Coordination, QA Materials Testing, and Construction Inspection services as subconsultant to Juneau Associates for Illinois Tollway Systemwide CM Upon Request contract.
- exp US ServicescoreINTERRA was selected by exp US Services to serve as subconsultant providing construction inspection services and documentation for IDOT I-55 Route 6 projects.
- Patrick EngineeringcoreINTERRA serves as Geotechnical subconsultant to Patrick Engineering for Olympic Boulevard Bridge over Rock Run Creek project, including drilling, laboratory testing, and geotechnical analysis.
- Bowman ConsultingcoreINTERRA was tasked by Bowman Consulting to perform subsurface soil investigations and prepare Structure Geotechnical Reports for box culvert rehabilitations on IL 173 and IL 176 in McHenry County.
- HR GreencoreINTERRA has provided Quality Assurance services for multiple Will County Department of Transportation projects as subconsultant to HR Green.
- ClaycocoreINTERRA provided Quality Assurance services for Macy's on State Street historic building conversion and 4555 N. Sheridan Apartments high-rise development for Clayco.
- Flood Testing LaboratoriescoreINTERRA was selected by Flood Testing Laboratories to provide Quality Assurance testing and inspection services for University of Chicago Medical Center West Campus Parking Garage.
- Midwest ConstructioncoreINTERRA was selected by Midwest Construction to perform Quality Assurance services for Exxon Mobil Terminal and Tank 5 projects in Arlington Heights.
- Illinois TollwaycoreINTERRA serves as prime consultant for Illinois Tollway providing Independent Assurance services systemwide and Geotechnical Services Upon Request for Move Illinois program.
- Illinois Department of Transportation (IDOT)coreINTERRA is prequalified by IDOT in multiple service categories and serves as prime consultant for Quality Assurance contracts providing Phase III professional engineering services.
Scale indicators5 records
Recent moves5 records
Expansion highlights6 records
INTERRA competitors and assessment
Company assessmentBroad incumbents
- Terracon Consultants, Inc. One of the largest U.S. geotechnical, environmental, construction materials, and facilities engineering consultancies. Overlaps directly with INTERRA across geotechnical engineering, CMT, and environmental site assessments, but operates nationally with a multi-discipline portfolio well beyond INTERRA's Midwest regional focus.
- Stantec Inc. Global multi-discipline engineering, environmental, and project management consultancy. Competes with INTERRA on Illinois DOT, Illinois Tollway, and large public infrastructure pursuits with a much broader service portfolio.
- WSP USA: Global engineering consultancy with strong U.S. transportation and infrastructure presence, including active Illinois Tollway and IDOT work. Overlaps with INTERRA's transportation, federal, and infrastructure inspection services at much larger scale.
- Tetra Tech, Inc. Global consulting and engineering firm with deep water, environmental, and infrastructure practices. Competes with INTERRA for environmental site assessments, geotechnical work, and federal facility projects, with significantly broader capabilities and geographic reach.
- AECOM: Global infrastructure consulting firm with significant U.S. transportation and federal facility work, including active IDOT and Illinois Tollway pursuits. Overlaps with INTERRA on construction inspection, geotechnical support, and environmental services within a much larger multi-discipline portfolio.
Direct peers
- Braun Intertec Corporation: Midwest-headquartered (Minneapolis) engineering firm offering geotechnical engineering, CMT, environmental consulting, and construction inspection services. Closely comparable to INTERRA in service mix, client base (DOTs, municipalities, contractors), and Midwest regional delivery model.
- ECS Group of Companies: National provider of geotechnical engineering, construction materials testing, environmental, and facilities services. Directly competes for IDOT, tollway, and commercial CMT work with a similar materials-testing-plus-engineering service stack as INTERRA.
- Atlas Technical Consultants, LLC: U.S. infrastructure consulting firm providing CMT, environmental, geotechnical, and engineering inspection services to public and private clients. Comparable in core offering to INTERRA, with overlapping pursuits on DOT and federal facility projects.
Regional players
- Raba Kistner, Inc. Texas-headquartered engineering firm providing geotechnical, environmental, CMT, and construction management services with a similar professional-services model. Comparable service mix to INTERRA but with primary concentration in Texas/south-central U.S. rather than the Midwest.
Emerging players
- Terraphase Engineering / Terraphase Group: Geotechnical, environmental, and CMT firm competing for similar public-sector and private development work. Smaller scale and broader geographic ambition, but directly overlapping service lines and customer profile with INTERRA.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat4 records
Key risks6 records
Key highlights7 records
Customer concentration
INTERRA social profiles
Digital presenceINTERRA compliance and trust
Trust signalCompliance7 records
INTERRA financial estimates
Financial estimateRevenue estimate
Valuation estimate
INTERRA leadership team
Management profileNumber of profiles
Profiles2 records
INTERRA funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
INTERRA M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about INTERRA
What does INTERRA do?
INTERRA provides professional engineering, inspection, and testing services for construction, infrastructure, environmental, and geotechnical projects. The firm delivers QC/QA construction materials testing, geotechnical engineering, environmental engineering, construction inspection, independent assurance, and construction management services, supported by an AASHTO- and IDOT-accredited 13,000 sq. ft. laboratory facility in Bolingbrook, IL.
Is INTERRA a public or private company?
INTERRA is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was INTERRA founded?
INTERRA was founded in 1996. It employs 51 to 100 people.
Where is INTERRA based?
INTERRA is headquartered in Bolingbrook, United States, in the North America region.
How does INTERRA make money?
One revenue line is on record: professional Engineering Services.
Who are INTERRA's main competitors?
Broad incumbents on record are Terracon Consultants, Inc., Stantec Inc., WSP USA, Tetra Tech, Inc. and AECOM. Direct peers are Braun Intertec Corporation, ECS Group of Companies and Atlas Technical Consultants, LLC. Raba Kistner, Inc. is listed as a regional player. Terraphase Engineering / Terraphase Group is listed as an emerging player.
Does INTERRA have an API?
No public API is recorded for INTERRA.
What industry is INTERRA in?
INTERRA's product category is Geotechnical & Construction Engineering Services. Its primary akta.pro industry code is EUAEAHAN, Third-Party Certification, Code Compliance & Regulatory Inspection (ASME/API/ISO), with a secondary code of EUAHAEAA, All Appropriate Inquiries (AAI) & ASTM Phase I ESA. Its NAICS code is 54138 and its SIC code is 8734.