What Affinis Corp does

Affinis Corp is an Overland Park, Kansas-based civil engineering, surveying, and consulting firm founded in 2001 (originally as Larkin Group Consulting Engineers, rebranded in 2002) and operating as a privately held, employee-owned professional services company with roughly 45 staff across engineering, surveying, CAD, marketing, finance, and HR. The firm delivers six integrated service lines: Geotechnical Engineering, Structural Engineering, Traffic Engineering, Roadway/Transportation Engineering, Stormwater Engineering, and Survey/UAS Services, deploying UAV-based aerial surveying, mobile van-mounted LiDAR, single-beam sonar bathymetric surveys performed from remote-controlled catamarans, and real-time wireless field-to-office data exchange to accelerate data collection for municipal infrastructure projects.

The firm's revenue model is project-based professional services work delivered through multi-year on-call contracts, individual project awards, and federal IDIQ task orders. It serves four primary customer segments: municipal governments in Kansas and Missouri (cities of Overland Park, Olathe, Prairie Village, Lee's Summit, De Soto, Merriam, Pleasant Hill, Lenexa, Leavenworth, and Weatherby Lake Improvement Company among named clients); state Departments of Transportation (Kansas DOT and Missouri DOT); federal agencies led by the U.S. Army Corps of Engineers (70+ task orders since a 2010 IDIQ award); and stormwater utilities, levee districts, regional councils, and a small private developer segment.

Commercial expansion is executed through direct enterprise-field-sales relationships and three strategic joint ventures: Ad Astra Collaborative (formed 2018 with Vireo and Water Resources Solutions), the Affinis-Eastern Shawnee JV (2024, with a tribal 8(a) firm), and the Affinis Freese and Nichols JV (2025, SBA Mentor-Protégé Program). The firm operates across roughly seven states in the U.S. Midwest, with a satellite office buildout underway in Nebraska and a culture profiled by consecutive Zweig Group 'Best Firm to Work for' recognition over the past two decades and a cited 95-96% repeat business rate as the central commercial signal.

Name

Affinis Corp

Legal name

Affinis Corp

Website

https://affinis.us

Company type

Private

Founded year

2001

Operating status

Operating

Headcount range

11–50 employees

Short description

Affinis Corp is an Overland Park, Kansas-based employee-owned civil engineering, surveying, and consulting firm that delivers geotechnical, structural, traffic, roadway, stormwater, and UAS survey services to municipal, state DOT, federal, and select private clients across roughly seven U.S. Midwest states.

Ownership category

akta.pro rank

Product category

Civil Engineering Services

NAICS

Other Scientific and Technical Consulting Services (541690), Geophysical Surveying and Mapping Services (541360)

akta.pro primary industry

Geotechnical & Subsurface Engineering Consulting (BPAHAIAB)

Keywords

• Civil engineering services
• Land surveying services
• Transportation engineering
• Stormwater management
• Geotechnical engineering

Headquarters

HQ city

Overland Park

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, Marketing or Sales, Infrastructure

Revenue model

1. Civil Engineering Services: Professional engineering services billed on project basis including roadway, geotechnical, structural, traffic, and stormwater engineering. Projects include preliminary engineering studies, design, and construction administration.

Pricing tiers

Go-to-market motion1 record

Distribution channels4 records

Marketing channels5 records

Core offering

Affinis Corp provides civil engineering, land surveying, and consulting services delivered through six integrated service lines: Geotechnical, Structural, Traffic, Roadway/Transportation, Stormwater, and Survey/UAS engineering. The firm works as an extension of client staff for municipalities, state departments of transportation, federal agencies (notably the U.S. Army Corps of Engineers), and private developers, executing projects from preliminary engineering studies through design and construction administration. Services are delivered via on-call contracts, joint ventures, and IDIQ federal contracts, supported by advanced surveying technologies including UAVs, mobile LiDAR, and bathymetric surveys.

Product overview

Affinis Corp offers a comprehensive suite of civil engineering and consulting services delivered as an integrated portfolio of specialized service lines. The firm provides Geotechnical Engineering, Structural Engineering, Traffic Engineering, Roadway/Transportation Engineering, Stormwater Engineering, and Survey/UAS Services. These services work together to deliver holistic infrastructure solutions, with teams often collaborating across disciplines on projects—for example, roadway projects may involve survey crews for topographic data collection, geotechnical analysis for subsurface conditions, stormwater design for drainage, and structural engineering for bridges or retaining walls. The firm operates primarily in the municipal, state, federal, and private sectors across seven states in the Midwest.

Differentiator

Problem solved

Functional benefit

Products and services

• Geotechnical Engineering Geotechnical engineering services including subsurface exploration, dam and levee engineering, slope stability analysis, foundation engineering, and construction observation, focused on risk-resilient design and constructability. Targeted at municipalities, state DOTs, and federal clients including the U.S. Army Corps of Engineers.
• Structural Engineering Structural engineering services including bridge and structure design, retaining wall design, hydraulic structure design, foundation design, levee and dam inspections, and pump station rehabilitation for municipal, state, and federal clients.
• Traffic Engineering Traffic engineering services including transportation planning, traffic impact studies, safety studies, signal design, roundabout studies and design, and intelligent transportation systems for cities, counties, and DOTs.
• Roadway/Transportation Engineering Roadway and highway engineering services including residential street reconstruction, highway design, interchange design, ADA compliance, and construction engineering for municipalities, KDOT, and MoDOT.
• Stormwater Engineering Stormwater engineering services including hydrologic and hydraulic analysis, floodplain analysis, detention basin design, dam and levee design, and stormwater quality BMPs for municipalities, levee districts, and water utilities.
• Survey/UAS Services Land surveying and mapping services including topographic surveys, right-of-way surveys, construction staking, hydrographic surveys, bathymetric surveys, and aerial drone services using UAS technology for engineering design data collection.

Quantifiable outcome

• 95-96% repeat business rate
• +3 more outcomes

Named customers15 records

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Six partnerships are on record, tiered core and minor.

• Freese and Nichols, Inc.coreStrategic or Co-development Partner · 1 January 2025Affinis Freese and Nichols JV is a Small Business Mentor Protégé Partnership under SBA program. Freese and Nichols (FNI) serves as mentor providing learning and growth opportunities to Affinis as protégé. Builds on 10 years of collaboration on federal projects.
• Eastern Shawnee CompaniescoreStrategic or Co-development Partner · 1 January 2024JV-Partnership with Eastern Shawnee Companies to form Affinis-Eastern Shawnee Joint Venture. Partnership with tribally owned 8(a) firm provides access to Affinis technical capabilities and ESPS project management skills.
• Ad Astra CollaborativecoreStrategic or Co-development Partner · 1 January 2018Joint venture formed by three firms (Affinis, Vireo, and Water Resources Solutions) whose leaders have been working together for more than 30 years. Combines civil engineering, water resource, and environmental design solutions to provide comprehensive skills to clients.
• OlssonminorStrategic or Co-development PartnerSubconsultant on Operation Green Light project providing design services for controller upgrades, camera additions, and detection integration.
• Merge MidwestminorStrategic or Co-development PartnerSubconsultant on Operation Green Light project for infrastructure design.
• United States Army Corps of Engineers (USACE)coreStrategic or Co-development PartnerLong-term federal client and partner. First IDIQ received from St. Louis District in 2010. Completed over 70 task orders for USACE on projects including pump stations, dams, flood control, and ecosystem restoration.

Scale indicators7 records

Recent moves10 records

Expansion highlights5 records

Direct peers

• Bartlett & West: Topeka, Kansas-based civil engineering firm offering roadway, water, structural, and surveying services of comparable size and client mix to Affinis. Direct competitor for KDOT and Kansas municipal on-call contracts in the same geography.
• George Butler Associates (GBA): Lenexa, Kansas-headquartered civil engineering firm of similar size providing roadway, structural, water resources, and survey services to municipal and DOT clients. Direct competitor in the KC metro and across Kansas.
• Lamp Rynearson: Omaha-based civil engineering, surveying, and consulting firm of comparable size serving municipal and state DOT clients across the Midwest. Similar business model and project mix to Affinis with adjacent geographic overlap.
• Wilson & Company: Kansas City-based engineering and architecture firm providing transportation, infrastructure, and surveying services to municipal, state, and federal clients. Direct competitor in the KC metro for the same DOT and municipal accounts Affinis serves.
• Olsson: Lincoln, Nebraska-headquartered engineering firm providing civil, transportation, water, and field services across the Midwest. Explicitly identified as a current partner/subconsultant to Affinis and a competitor for similar KDOT and municipal work.

Broad incumbents

• Burns & McDonnell: Kansas City-headquartered global engineering, construction, and consulting firm with broad civil infrastructure, transportation, water, and federal services. Much larger incumbent competing for the same KDOT, MoDOT, USACE, and municipal clients in Affinis's core geography.
• Black & Veatch: Overland Park, Kansas-headquartered global engineering, procurement, and construction firm with broad infrastructure, water, and federal practices. Major Kansas-based incumbent that competes for large-scale municipal and federal work overlapping with Affinis's portfolio.
• HDR Inc. Omaha-based global engineering, architecture, and consulting firm with strong transportation, water, and federal practices. Large incumbent competing for DOT, USACE, and municipal contracts across the Midwest where Affinis operates.
• Terracon Consultants: Lenexa, Kansas-based national geotechnical, environmental, and facilities engineering firm. National-scale incumbent in the same geotechnical and materials testing space Affinis just brought in-house in late 2025.
• WSP USA: Global engineering and professional services firm with extensive U.S. transportation, water, and federal infrastructure practices. Large incumbent competing for KDOT, MoDOT, USACE, and municipal work across the Midwest.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/in/jasondondavis
• Xx.com/AffinisCorp
• Facebookfacebook.com/AffinisCorp

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles12 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 Affinis Corp