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.
| # | Company | Employees | |||
|---|---|---|---|---|---|
| 1 |
Black & Veatchbv.com
An employee-owned global leader in building critical human infrastructure in Energy, Water, Telecommunications, and Government Services since 1915 |
11,691 | |||
| 2 |
EXLexlservice.com
EXL is a digital partner that collaborates with businesses to tailor solutions using data, analytics, and industry expertise to drive success |
4,782 | |||
| 3 |
Favorite Healthcare Staffingfavoritestaffing.com
A healthcare staffing agency offering travel nursing, allied health, emergency relief, permanent placement, and workforce solutions with nationwide operations and community-based approach |
2,875 | |||
| 4 |
Ong & Companyongandcompany.com
A professional accounting firm offering tax, consulting, and financial services to businesses and individuals since 1982, serving over 1,000 clients nationwide |
2,176 | |||
| 5 |
OTSI - Object Technology Solutions Inc.otsi-global.com
Global technology company providing solutions, consulting, and managed services worldwide since 1999 Specializing in data & analytics, digital transformation, QA & automation, and enterprise applications |
1,220 | |||
| 6 |
M.E. GROUPmegroup.com
Building consultancy focused on creating sustainable, people-centered built environments through Human-Centered Design approach, rooted in nature and improving life |
1,159 | |||
| 7 |
Henderson Engineershendersonengineers.com
A national building systems design firm offering engineering services in various markets, known for people-first culture, technical excellence, and innovative designs |
1,107 | |||
| 8 |
National Institute for Aviation Researchwichita.edu
An aviation research center at Wichita State University providing design, testing, certification, and training to the aviation, defense, and manufacturing industries |
991 | |||
| 9 |
GBAgbateam.com
Innovative approach to architectural, engineering, construction, and technology services with affiliate partners, serving various markets and clients nationwide Headquarters in Kansas |
851 | |||
| 10 |
EducationDynamicseducationdynamics.com
The company partners with schools to help them attract and retain students through online programs, enrollment management services, and strategic growth solutions |
652 | |||
| 11 |
1840 & Company1840andco.com
1840 & Company offers comprehensive solutions in business process outsourcing and staff augmentation to help businesses hire and manage global talent efficiently |
598 | |||
| 12 | 551 | ||||
| 13 |
Creative Planning Business Servicescreativeplanning.com
Provides audit, attest, business consulting, tax, and financial services through a strategic acquisition, offering customized expertise and unparalleled experiences for clients |
531 | |||
| 14 |
Focus Workforce Managementhttps
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 |
504 | |||
| 15 |
LSI Staffinglsistaffing.com
A staffing agency with over 30 years of experience, providing top jobs to hard-working individuals and high-quality customer service to clients |
473 | |||
| 16 | 468 | ||||
| 17 |
Bartlett & Westbartlettwest.com
The company focuses on creating well-conceived projects to improve communities, provide a close-knit work environment, and offer meaningful career opportunities |
464 | |||
| 18 |
Professional Engineering Consultantspec1.com
A comprehensive engineering firm with professionals licensed in all 50 states, offering design services for a range of projects worldwide |
444 | |||
| 19 |
MMGY Globalmmgyglobal.com
Global integrated marketing company specializing in travel, tourism, and hospitality, inspiring people to travel with multiple agency brands and over 600 experts worldwide |
429 | |||
| 20 |
PROtect LLCprotect.llc
PROtect specializes in providing safety, reliability, and compliance services to a variety of industries across the United States to mitigate risks |
390 | |||
Want more companies than this list?This page shows the largest ones only. Connect to Tamtam to see every company that matches, filter by size, industry or growth, and reach their decision-makers. | |||||
| 21 |
Midwest Consulting Groupmcginfo.com
Full-service IT staffing firm with 20+ years of experience, offering contract consulting, direct hire placement, project outsourcing, and management services nationwide |
386 | |||
| 22 |
Novacoastnovacoast.com
An international cybersecurity company with 25+ years of experience providing IT services and software development to private and public organizations |
380 | |||
| 23 |
BRR Architecturebrrarch.com
A design firm with team-based approach, partnering with clients nationwide, treating projects as their own, and overcoming challenges with a straightforward process |
379 | |||
| 24 |
Full Scalefullscale.io
Tech services company connecting businesses with software engineers Founded by entrepreneurs, hosts Startup Hustle podcast, focusing on finding and retaining tech talent affordably |
375 | |||
| 25 |
AIB International, Incaibinternational.com
This company specializes in ensuring food safety through inspections, audits, certifications, educational programs, and research services for various food-related industries |
374 | |||
| 26 |
Nuvento Incnuvento.com
A digital technology services firm specializing in AI, automation, business transformation, cloud engineering, and data engineering to help businesses grow digitally |
354 | |||
| 27 |
Adams Brownadamsbrowncpa.com
Leading CPA and advisory firm offering accounting and consulting services to businesses and individuals, specializing in diverse industries across the U.S. |
334 | |||
| 28 |
Mill Creekmillcrk.com
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 |
319 | |||
| 29 |
Telelanguagetelelanguage.com
Provider of interpretation and translation services in 350+ languages, available 24/7, via phone, video, virtual, and on-site for customers across the US |
318 | |||
| 30 |
Cushman & Wakefield Facilities Solutionscushmanwakefield.com
A leading facilities management company offering 24/7/365 trade services for over 200k buildings across North America |
316 | |||
| 31 |
Corridor, Powered by WellSkycorridorgroup.com
Leading provider of tech-enabled healthcare services for home-based care, including coding, clinical documentation review, revenue cycle, compliance, technology, and education |
191 | |||
| 32 |
Hotel Management and Consulting, Inc.hotelmc.net
An award-winning extended-stay property management company with over 6,000 rooms, 500+ employees, and a track record of turning around troubled hotels |
132 | |||
| 33 |
HYR Global Source Inchyrglobalsource.com
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 |
79 | |||
| 34 |
Clarus Groupclarusgroup.com
Experts in Salesforce consulting, implementation, training, and managed services for government and commercial sectors Specializing in Public Sector Solutions and LCNC implementations |
39 | |||
| 35 |
SES, Inc.ses-corp.com
The company specializes in sustainability, climate consulting, emergency management, program development, natural resource management, and environmental management services for clients worldwide |
21 | |||
| 36 |
ARE Corporationare-corp.com
Engineering and Technology solutions provider specializing in improving structural safety of critical infrastructure through a team of engineers, pilots, analysts, and developers |
20 | |||
| 37 |
Turnstone Investment Bankingccbfinancial.com
A Kansas City-based investment banking advisory firm offering services in mergers and acquisitions, capital raising, and corporate finance through successful transactions |
14 | |||
| 38 |
TW Automation LCtw-automation.com
A robotics automation solutions provider with 125 years of industry experience, specializing in integrating industrial robots for increased productivity and quality |
10 | |||
| 39 |
the IQ studiotheiqstudio.com
A data management, integration, and analytics consulting firm that helps clients across sectors improve data quality, usability, and decision-making processes |
6 | |||
| 40 |
Statement Consulting LLCstatementconsulting.com
This company offers professional services in project management, software implementation, vendor selection, managed services, and process improvement to empower teams |
3 | |||
| 41 |
Level IV Consultingleveliv.org
The company specializes in providing facilitated experiences and consulting expertise in various areas such as communication, conflict management, coaching, and team development |
2 | |||
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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.
More company lists in Kansas
- The largest companies in Kansas 705
- Manufacturers in Kansas 82
- Multinational companies in Kansas 78
- Education providers in Kansas 66
- Critical infrastructure operators in Kansas 59
- Retail chains in Kansas 57
- Financial services firms in Kansas 56
- Public sector organisations in Kansas 47
- Healthcare providers in Kansas 46
- Financial Services companies in Kansas 45
- Hospitals and Health Care companies in Kansas 45
- Higher Education companies in Kansas 42
- Hardware manufacturers in Kansas 39
- Companies with in-house R&D in Kansas 38
- Companies with a mobile app in Kansas 35
- Family-owned companies in Kansas 30
- Energy companies in Kansas 29
- Corporate groups and holding companies in Kansas 29
- Construction companies in Kansas 28
- IT Services and IT Consulting companies in Kansas 27
- Distributors and wholesalers in Kansas 27
The same list elsewhere in United States
- Professional services firms in the United States 7,078
- Professional services firms in New York State 955
- Professional services firms in California 880
- Professional services firms in Texas 629
- Professional services firms in Florida 375
- Professional services firms in Virginia 344
- Professional services firms in Illinois 339
- Professional services firms in Massachusetts 249
- Professional services firms in New Jersey 249
- Professional services firms in Georgia 246
- Professional services firms in Pennsylvania 245
- Professional services firms in Ohio 195
- Professional services firms in Maryland 176
- Professional services firms in Michigan 172
- Professional services firms in Washington State 163
- Professional services firms in North Carolina 142
- Professional services firms in Alabama 135
- Professional services firms in Minnesota 125
- Professional services firms in New York 735
- Professional services firms in Chicago 196
- Professional services firms in Houston 156
- Professional services firms in Atlanta 143
- Professional services firms in San Francisco 130
- Professional services firms in Washington 109