# The 41 largest professional services firms in Kansas

Tamtam tracks 41 professional services firms headquartered in Kansas. This list ranks all of them by number of employees on LinkedIn, led by Black & Veatch, EXL and Favorite Healthcare Staffing. Their median headcount is 386. Half of them were founded in 1994 or later. The most common headquarters are Overland Park (20), Wichita (8) and Lenexa (7).

The professional services sector in Kansas includes a mix of established firms and younger companies, primarily concentrated in the Overland Park and Lenexa areas. These firms offer a wide range of specialized services, from engineering to IT consulting and staffing solutions. Black & Veatch, founded in 1915, is an employee-owned global leader in critical human infrastructure. Favorite Healthcare Staffing, established in 1981, provides nationwide healthcare staffing services. OTSI - Object Technology Solutions Inc., founded in 1999, is a global technology company specializing in data and digital transformation. Henderson Engineers, founded in 1970, offers building systems design.

A notable characteristic of these companies is their focus on business support services. For instance, EXL is a digital partner for businesses using data and analytics, while Ong & Company, founded in 1982, offers tax, consulting, and financial services. Focus Workforce Management provides custom staffing and onsite workforce management for manufacturing and distribution. This concentration of headquarters in Overland Park and Lenexa suggests a regional hub for professional services.

🇺🇸 Kansas · 41 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [Black & Veatch](https://www.tamtam.ai/c/black-and-veatch) (bv.com)<br>An employee-owned global leader in building critical human infrastructure in Energy, Water, Telecommunications, and Government Services since 1915 | Engineering Services | 🇺🇸 Overland Park | 11,691 | 1915 |
| 2 | [EXL](https://www.tamtam.ai/c/exl-overland-park) (exlservice.com)<br>EXL is a digital partner that collaborates with businesses to tailor solutions using data, analytics, and industry expertise to drive success | Insurance | 🇺🇸 Overland Park | 4,782 |  |
| 3 | [Favorite Healthcare Staffing](https://www.tamtam.ai/c/favorite-healthcare-staffing) (favoritestaffing.com)<br>A healthcare staffing agency offering travel nursing, allied health, emergency relief, permanent placement, and workforce solutions with nationwide operations and community-based approach | Staffing and Recruiting | 🇺🇸 Overland Park | 2,875 | 1981 |
| 4 | [Ong & Company](https://www.tamtam.ai/c/ong-and-company) (ongandcompany.com)<br>A professional accounting firm offering tax, consulting, and financial services to businesses and individuals since 1982, serving over 1,000 clients nationwide | Accounting | 🇺🇸 Overland Park | 2,176 | 1982 |
| 5 | [OTSI - Object Technology Solutions Inc.](https://www.tamtam.ai/c/otsi-object-technology-solutions-inc) (otsi-global.com)<br>Global technology company providing solutions, consulting, and managed services worldwide since 1999 Specializing in data & analytics, digital transformation, QA & automation, and enterprise applications | IT Services and IT Consulting | 🇺🇸 Overland Park | 1,220 | 1999 |
| 6 | [M.E. GROUP](https://www.tamtam.ai/c/m-e-group) (megroup.com)<br>Building consultancy focused on creating sustainable, people-centered built environments through Human-Centered Design approach, rooted in nature and improving life | Mechanical Or Industrial Engineering | 🇺🇸 Overland Park | 1,159 | 1991 |
| 7 | [Henderson Engineers](https://www.tamtam.ai/c/henderson-engineers) (hendersonengineers.com)<br>A national building systems design firm offering engineering services in various markets, known for people-first culture, technical excellence, and innovative designs | Design Services | 🇺🇸 Lenexa | 1,107 | 1970 |
| 8 | [National Institute for Aviation Research](https://www.tamtam.ai/c/national-institute-for-aviation-research) (wichita.edu)<br>An aviation research center at Wichita State University providing design, testing, certification, and training to the aviation, defense, and manufacturing industries | Research Services | 🇺🇸 Wichita | 991 | 1985 |
| 9 | [GBA](https://www.tamtam.ai/c/gba-lenexa) (gbateam.com)<br>Innovative approach to architectural, engineering, construction, and technology services with affiliate partners, serving various markets and clients nationwide Headquarters in Kansas | Design Services | 🇺🇸 Lenexa | 851 | 1969 |
| 10 | [EducationDynamics](https://www.tamtam.ai/c/educationdynamics) (educationdynamics.com)<br>The company partners with schools to help them attract and retain students through online programs, enrollment management services, and strategic growth solutions | Advertising Services | 🇺🇸 Lenexa | 652 | 2005 |
| 11 | [1840 & Company](https://www.tamtam.ai/c/1840-and-company) (1840andco.com)<br>1840 & Company offers comprehensive solutions in business process outsourcing and staff augmentation to help businesses hire and manage global talent efficiently | Outsourcing and Offshoring Consulting | 🇺🇸 Overland Park | 598 | 2014 |
| 12 | [InfoSync](https://www.tamtam.ai/c/infosync) (issvc.com)<br>A company specializing in Accounting, Payroll, and Benefits Administration for multi-unit businesses, providing expert staff, leading technology, and industry insight | Financial Services | 🇺🇸 Wichita | 551 | 2001 |
| 13 | [Creative Planning Business Services](https://www.tamtam.ai/c/creative-planning-business-services) (creativeplanning.com)<br>Provides audit, attest, business consulting, tax, and financial services through a strategic acquisition, offering customized expertise and unparalleled experiences for clients | Business Consulting and Services | 🇺🇸 Overland Park | 531 |  |
| 14 | [Focus Workforce Management](https://www.tamtam.ai/c/focus-workforce-management) (https)<br>National provider of custom staffing and onsite workforce management for large-scale manufacturing and distribution organizations, specializing in high-volume, high-touch, and fast response environments | Staffing and Recruiting | 🇺🇸 Lenexa | 504 |  |
| 15 | [LSI Staffing](https://www.tamtam.ai/c/lsi-staffing) (lsistaffing.com)<br>A staffing agency with over 30 years of experience, providing top jobs to hard-working individuals and high-quality customer service to clients | Staffing and Recruiting | 🇺🇸 Wichita | 473 | 1986 |
| 16 | [BHC](https://www.tamtam.ai/c/bhc-overland-park) (ibhc.com)<br>A comprehensive civil engineering and surveying firm offering a wide range of services to development, telecom, and public works industries with exceptional customer service | Civil Engineering | 🇺🇸 Overland Park | 468 | 1992 |
| 17 | [Bartlett & West](https://www.tamtam.ai/c/bartlett-and-west) (bartlettwest.com)<br>The company focuses on creating well-conceived projects to improve communities, provide a close-knit work environment, and offer meaningful career opportunities | Civil Engineering | 🇺🇸 Topeka | 464 | 1951 |
| 18 | [Professional Engineering Consultants](https://www.tamtam.ai/c/professional-engineering-consultants) (pec1.com)<br>A comprehensive engineering firm with professionals licensed in all 50 states, offering design services for a range of projects worldwide | Design Services | 🇺🇸 Wichita | 444 | 1965 |
| 19 | [MMGY Global](https://www.tamtam.ai/c/mmgy-global) (mmgyglobal.com)<br>Global integrated marketing company specializing in travel, tourism, and hospitality, inspiring people to travel with multiple agency brands and over 600 experts worldwide | Advertising Services | 🇺🇸 Overland Park | 429 | 1981 |
| 20 | [PROtect LLC](https://www.tamtam.ai/c/protect-llc) (protect.llc)<br>PROtect specializes in providing safety, reliability, and compliance services to a variety of industries across the United States to mitigate risks | Engineering Services | 🇺🇸 Wichita | 390 | 2020 |
| 21 | [Midwest Consulting Group](https://www.tamtam.ai/c/midwest-consulting-group) (mcginfo.com)<br>Full-service IT staffing firm with 20+ years of experience, offering contract consulting, direct hire placement, project outsourcing, and management services nationwide | IT Services and IT Consulting | 🇺🇸 Overland Park | 386 | 1994 |
| 22 | [Novacoast](https://www.tamtam.ai/c/novacoast) (novacoast.com)<br>An international cybersecurity company with 25+ years of experience providing IT services and software development to private and public organizations | IT Services and IT Consulting | 🇺🇸 Wichita | 380 | 1996 |
| 23 | [BRR Architecture](https://www.tamtam.ai/c/brr-architecture) (brrarch.com)<br>A design firm with team-based approach, partnering with clients nationwide, treating projects as their own, and overcoming challenges with a straightforward process | Architecture and Planning | 🇺🇸 Overland Park | 379 | 1963 |
| 24 | [Full Scale](https://www.tamtam.ai/c/full-scale) (fullscale.io)<br>Tech services company connecting businesses with software engineers Founded by entrepreneurs, hosts Startup Hustle podcast, focusing on finding and retaining tech talent affordably | Outsourcing and Offshoring Consulting | 🇺🇸 Overland Park | 375 | 2018 |
| 25 | [AIB International, Inc](https://www.tamtam.ai/c/aib-international-inc) (aibinternational.com)<br>This company specializes in ensuring food safety through inspections, audits, certifications, educational programs, and research services for various food-related industries | Food and Beverage Services | 🇺🇸 Manhattan | 374 | 1919 |
| 26 | [Nuvento Inc](https://www.tamtam.ai/c/nuvento-inc) (nuvento.com)<br>A digital technology services firm specializing in AI, automation, business transformation, cloud engineering, and data engineering to help businesses grow digitally | IT Services and IT Consulting | 🇺🇸 Kansas | 354 | 2007 |
| 27 | [Adams Brown](https://www.tamtam.ai/c/adams-brown) (adamsbrowncpa.com)<br>Leading CPA and advisory firm offering accounting and consulting services to businesses and individuals, specializing in diverse industries across the U.S. | Accounting | 🇺🇸 Wichita | 334 | 1945 |
| 28 | [Mill Creek](https://www.tamtam.ai/c/mill-creek) (millcrk.com)<br>A tribal-owned small business specializing in healthcare and government projects, offering services from design to installation including FF&E, medical equipment planning, and transition management | Construction | 🇺🇸 Holton | 319 |  |
| 29 | [Telelanguage](https://www.tamtam.ai/c/telelanguage) (telelanguage.com)<br>Provider of interpretation and translation services in 350+ languages, available 24/7, via phone, video, virtual, and on-site for customers across the US | Translation and Localization | 🇺🇸 Overland Park | 318 | 1991 |
| 30 | [Cushman & Wakefield Facilities Solutions](https://www.tamtam.ai/c/cushman-and-wakefield-facilities-solutions) (cushmanwakefield.com)<br>A leading facilities management company offering 24/7/365 trade services for over 200k buildings across North America | Facilities Services | 🇺🇸 Wichita | 316 | 1994 |
| 31 | [Corridor, Powered by WellSky](https://www.tamtam.ai/c/corridor-powered-by-wellsky) (corridorgroup.com)<br>Leading provider of tech-enabled healthcare services for home-based care, including coding, clinical documentation review, revenue cycle, compliance, technology, and education | Hospitals and Health Care | 🇺🇸 Overland Park | 191 | 1989 |
| 32 | [Hotel Management and Consulting, Inc.](https://www.tamtam.ai/c/hotel-management-and-consulting-inc) (hotelmc.net)<br>An award-winning extended-stay property management company with over 6,000 rooms, 500+ employees, and a track record of turning around troubled hotels | Hospitality | 🇺🇸 Overland Park | 132 | 2010 |
| 33 | [HYR Global Source Inc](https://www.tamtam.ai/c/hyr-global-source-inc) (hyrglobalsource.com)<br>Trusted technology partner since 2013, specializing in web/mobile development, ERP implementation/migration, cloud/AI adoption with a client-centric approach driving innovation and productivity | IT Services and IT Consulting | 🇺🇸 Overland Park | 79 | 2013 |
| 34 | [Clarus Group](https://www.tamtam.ai/c/clarus-group) (clarusgroup.com)<br>Experts in Salesforce consulting, implementation, training, and managed services for government and commercial sectors Specializing in Public Sector Solutions and LCNC implementations | IT Services and IT Consulting | 🇺🇸 Overland Park | 39 | 2007 |
| 35 | [SES, Inc.](https://www.tamtam.ai/c/ses-inc) (ses-corp.com)<br>The company specializes in sustainability, climate consulting, emergency management, program development, natural resource management, and environmental management services for clients worldwide | Environmental Services | 🇺🇸 Lenexa | 21 | 1998 |
| 36 | [ARE Corporation](https://www.tamtam.ai/c/are-corporation) (are-corp.com)<br>Engineering and Technology solutions provider specializing in improving structural safety of critical infrastructure through a team of engineers, pilots, analysts, and developers | Engineering Services | 🇺🇸 Overland Park | 20 | 2015 |
| 37 | [Turnstone Investment Banking](https://www.tamtam.ai/c/turnstone-investment-banking) (ccbfinancial.com)<br>A Kansas City-based investment banking advisory firm offering services in mergers and acquisitions, capital raising, and corporate finance through successful transactions | Investment Banking | 🇺🇸 Mission Woods | 14 | 1994 |
| 38 | [TW Automation LC](https://www.tamtam.ai/c/tw-automation-lc) (tw-automation.com)<br>A robotics automation solutions provider with 125 years of industry experience, specializing in integrating industrial robots for increased productivity and quality | Automation Machinery Manufacturing | 🇺🇸 Lenexa | 10 | 1996 |
| 39 | [the IQ studio](https://www.tamtam.ai/c/the-iq-studio) (theiqstudio.com)<br>A data management, integration, and analytics consulting firm that helps clients across sectors improve data quality, usability, and decision-making processes | IT Services and IT Consulting | 🇺🇸 Overland Park | 6 | 2013 |
| 40 | [Statement Consulting LLC](https://www.tamtam.ai/c/statement-consulting-llc) (statementconsulting.com)<br>This company offers professional services in project management, software implementation, vendor selection, managed services, and process improvement to empower teams | IT Services and IT Consulting | 🇺🇸 Lenexa | 3 |  |
| 41 | [Level IV Consulting](https://www.tamtam.ai/c/level-iv-consulting) (leveliv.org)<br>The company specializes in providing facilitated experiences and consulting expertise in various areas such as communication, conflict management, coaching, and team development | Professional Training and Coaching | 🇺🇸 Tonganoxie | 2 | 1996 |

## How this list is built

Every company on this list has a Tamtam company profile. The industry is the one the company gives on LinkedIn; categories such as SaaS or fintech are classified by Tamtam's AI from the company's website and LinkedIn page; and the headquarters city must match the company's own address. Companies are ranked by the number of employees on LinkedIn, and the list is refreshed every night. Classifications can be wrong, so treat the list as a starting point rather than an official ranking. Last updated Nov 11, 2026.

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## The same list elsewhere in United States

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Source: https://www.tamtam.ai/l/professional-services-firms-kansas