Tamtam Start free

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).

馃嚭馃嚫 Kansas41 companiesUpdated Nov 11, 2026

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.

#CompanyIndustryHeadquarters EmployeesFounded
1
Black & Veatchbv.com

An employee-owned global leader in building critical human infrastructure in Energy, Water, Telecommunications, and Government Services since 1915

Engineering Services 馃嚭馃嚫 Overland Park 11,691 1915
2
EXLexlservice.com

EXL is a digital partner that collaborates with businesses to tailor solutions using data, analytics, and industry expertise to drive success

Insurance 馃嚭馃嚫 Overland Park 4,782 n/a
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

Staffing and Recruiting 馃嚭馃嚫 Overland Park 2,875 1981
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

Accounting 馃嚭馃嚫 Overland Park 2,176 1982
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

IT Services and IT Consulting 馃嚭馃嚫 Overland Park 1,220 1999
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

Mechanical Or Industrial Engineering 馃嚭馃嚫 Overland Park 1,159 1991
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

Design Services 馃嚭馃嚫 Lenexa 1,107 1970
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

Research Services 馃嚭馃嚫 Wichita 991 1985
9
GBAgbateam.com

Innovative approach to architectural, engineering, construction, and technology services with affiliate partners, serving various markets and clients nationwide Headquarters in Kansas

Design Services 馃嚭馃嚫 Lenexa 851 1969
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

Advertising Services 馃嚭馃嚫 Lenexa 652 2005
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

Outsourcing and Offshoring Consulting 馃嚭馃嚫 Overland Park 598 2014
12
InfoSyncissvc.com

A company specializing in Accounting, Payroll, and Benefits Administration for multi-unit businesses, providing expert staff, leading technology, and industry insight

Financial Services 馃嚭馃嚫 Wichita 551 2001
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

Business Consulting and Services 馃嚭馃嚫 Overland Park 531 n/a
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

Staffing and Recruiting 馃嚭馃嚫 Lenexa 504 n/a
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

Staffing and Recruiting 馃嚭馃嚫 Wichita 473 1986
16
BHCibhc.com

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 馃嚭馃嚫 Overland Park 468 1992
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

Civil Engineering 馃嚭馃嚫 Topeka 464 1951
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

Design Services 馃嚭馃嚫 Wichita 444 1965
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

Advertising Services 馃嚭馃嚫 Overland Park 429 1981
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

Engineering Services 馃嚭馃嚫 Wichita 390 2020

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.

Get more companies, free
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

IT Services and IT Consulting 馃嚭馃嚫 Overland Park 386 1994
22
Novacoastnovacoast.com

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 馃嚭馃嚫 Wichita 380 1996
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

Architecture and Planning 馃嚭馃嚫 Overland Park 379 1963
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

Outsourcing and Offshoring Consulting 馃嚭馃嚫 Overland Park 375 2018
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

Food and Beverage Services 馃嚭馃嚫 Manhattan 374 1919
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

IT Services and IT Consulting 馃嚭馃嚫 Kansas 354 2007
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.

Accounting 馃嚭馃嚫 Wichita 334 1945
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

Construction 馃嚭馃嚫 Holton 319 n/a
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

Translation and Localization 馃嚭馃嚫 Overland Park 318 1991
30
Cushman & Wakefield Facilities Solutionscushmanwakefield.com

A leading facilities management company offering 24/7/365 trade services for over 200k buildings across North America

Facilities Services 馃嚭馃嚫 Wichita 316 1994
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

Hospitals and Health Care 馃嚭馃嚫 Overland Park 191 1989
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

Hospitality 馃嚭馃嚫 Overland Park 132 2010
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

IT Services and IT Consulting 馃嚭馃嚫 Overland Park 79 2013
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

IT Services and IT Consulting 馃嚭馃嚫 Overland Park 39 2007
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

Environmental Services 馃嚭馃嚫 Lenexa 21 1998
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

Engineering Services 馃嚭馃嚫 Overland Park 20 2015
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

Investment Banking 馃嚭馃嚫 Mission Woods 14 1994
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

Automation Machinery Manufacturing 馃嚭馃嚫 Lenexa 10 1996
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

IT Services and IT Consulting 馃嚭馃嚫 Overland Park 6 2013
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

IT Services and IT Consulting 馃嚭馃嚫 Lenexa 3 n/a
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

Professional Training and Coaching 馃嚭馃嚫 Tonganoxie 2 1996

Turn this list into pipeline

Tamtam finds the decision-makers at every company on a list like this one, with verified emails, phone numbers and the buying signals that tell you when to reach out.

Build your own list, free

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.

More company lists in Kansas

The same list elsewhere in United States