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The 48 largest consulting firms in Indiana

Tamtam tracks 48 consulting firms headquartered in Indiana. This list ranks all of them by number of employees on LinkedIn, led by TCS, Legato Health Technologies and Brooksource. Their median headcount is 390. Half of them were founded in 2000 or later. The most common headquarters are Indianapolis (23), Carmel (7) and Fishers (5).

馃嚭馃嚫 Indiana48 companiesUpdated Nov 2, 2026
#CompanyIndustryHeadquarters EmployeesFounded
1
TCS

A full lifecycle IT professional services and software firm in Brownsburg, IN, offering tailored solutions and managed services for optimized technology investments

IT Services and IT Consulting 馃嚭馃嚫 Brownsburg 21,901 n/a
2
Legato Health Technologiescarelonglobal.com

IT and business consulting healthcare solutions company specializing in digital tools for simplifying healthcare processes and transforming the industry through innovation and operational excellence

IT Services and IT Consulting 馃嚭馃嚫 Indianapolis 4,240 n/a
3
Brooksourcebrooksource.com

Trusted provider of Engineering & Technology solutions for Fortune 500 organizations, emphasizing Experience-Driven Staffing, Professional Services, and Workforce Transformation

IT Services and IT Consulting 馃嚭馃嚫 Indianapolis 2,497 2000
4
MS Companiesmscompanies.com

A data-driven technology company providing workforce solutions to OEMs and tiered suppliers, specializing in advisory, quality representation, inspection, and talent management services

Professional Services 馃嚭馃嚫 Indianapolis 2,236 1999
5
Eight Eleven Groupeightelevengroup.com

Eight Eleven Group provides IT, engineering, healthcare, and business support services nationwide, focusing on creating great experiences for clients, consultants, and employees

Staffing and Recruiting 馃嚭馃嚫 Indianapolis 1,877 2000
6
Stratosphere Qualitystratospherequality.com

Global provider of quality assurance solutions to manufacturers in automotive, medical device, electronics, home appliance, and recreational vehicle industries, helping minimize defects and reduce costs

Outsourcing and Offshoring Consulting 馃嚭馃嚫 Fishers 1,740 2009
7
Qualusqualuscorp.com

Innovative power services firm specializing in grid modernization, resiliency, sustainability, and software solutions for utilities, commercial, industrial, and government clients

Engineering Services 馃嚭馃嚫 Usa 1,668 n/a
8
BCforwardbcforward.com

Global talent community empowering job seekers worldwide to advance careers and help organizations achieve goals in various industries Headquarters in Indianapolis and Hyderabad

IT Services and IT Consulting 馃嚭馃嚫 Indianapolis 1,662 1998
9
ACESacespower.com

A nationwide energy management company helping clients navigate and mitigate risks in the US energy markets without owning any energy commodities

Utilities 馃嚭馃嚫 Carmel 1,194 1999
10
CAIcaiready.com

Trusted global experts providing engineers, project managers, and technicians to efficiently startup projects, lower costs, and drive speed to patient in various industries

Pharmaceutical Manufacturing 馃嚭馃嚫 Indianapolis 1,105 n/a
11
Medasourcemedasource.com

Leading consulting and professional services provider in healthcare industry, offering services to Life Sciences, RCM/Payers, Technology, and Government sectors

Hospitals and Health Care 馃嚭馃嚫 Indianapolis 997 2000
12
KSM (Katz, Sapper & Miller)ksmcpa.com

A nationally recognized firm offering advisory, tax, and audit services, leveraging technology and diverse perspectives to help clients thrive and innovate

Accounting 馃嚭馃嚫 Indianapolis 915 1942
13
American Structurepointstructurepoint.com

Providing innovative engineering, design, and consulting services across various disciplines to support projects from concept through completion.

Civil Engineering 馃嚭馃嚫 Indianapolis 767 1966
14
Blue & Co., LLCblueandco.com

Blue & Co provides a wide range of professional services including auditing, business planning, financial controls, and litigation support to help clients succeed

Accounting 馃嚭馃嚫 Carmel 626 1970
15
Gibsonthegibsonedge.com

A consulting firm specializing in proactive insurance solutions for companies seeking growth, differentiation in the market, and risk preparation

Insurance 馃嚭馃嚫 South Bend 610 1933
16
Safety Management Groupsafetymanagementgroup.com

QHSE consultants focused on reducing risk, promoting sustainable operations, and enhancing safety culture to protect people, assets, and communities globally

Construction 馃嚭馃嚫 Indianapolis 565 1991
17
Core BTSnri-na.com

A full-service digital transformation consulting firm that helps clients solve challenges and achieve business outcomes through integrated solutions

IT Services and IT Consulting 馃嚭馃嚫 Indianapolis 503 2004
18
iLABilabquality.com

iLAB specializes in providing global Software Quality Assurance services, including Quality Management, Testing, Project Management, and IT Consulting, with a focus on continuous learning and innovation

IT Services and IT Consulting 馃嚭馃嚫 Indianapolis 493 1995
19
enVistaenvistacorp.com

A leading consulting firm providing supply chain, technology, and IT services with expertise in automation, robotics, Microsoft solutions, and managed services

Business Consulting and Services 馃嚭馃嚫 Carmel 482 2002
20
Resultantresultant.com

Collaborative team combining engineering, data analysis, and consulting to solve complex challenges and empower clients in public and private sectors.

Business Consulting and Services 馃嚭馃嚫 Indianapolis 454 2008
21
Lochmueller Grouplochgroup.com

Employee-owned firm providing survey, planning, engineering, environmental services, data collection, modeling, public involvement, design, and construction oversight nationwide.

Civil Engineering 馃嚭馃嚫 Evansville 401 1980
22
Sales Xceleration庐salesxceleration.com

Sales Xceleration helps clients increase sales through a proven Sales Operating Management System, outsourced VP of Sales guidance, and tailored growth plans

Business Consulting and Services 馃嚭馃嚫 Fishers 391 2011
23
The MJ Companiesthemjcos.com

A leading insurance agency providing risk management, employee benefits, and retirement consulting services with a focus on data-driven solutions Serving clients nationwide

Financial Services 馃嚭馃嚫 Carmel 390 1964
24
TRISTARstar3.com

A veteran-owned professional services company specializing in electronic warfare, cybersecurity, IT, and technical solutions for Department of Defense programs

Defense and Space Manufacturing 馃嚭馃嚫 Bloomington 390 1995
25
DOZdozllc.com

DOZ offers accounting, consulting, and tax services to owners of multifamily housing, senior living facilities, commercial properties, and residential land developments, specializing in HUD and Low Income Housing Tax Credit projects

Accounting 馃嚭馃嚫 Carmel 369 1987
26
Storage Solutions - A Jungheinrich Companystorage-solutions.com

Warehouse and automation design experts providing storage capacity increase, inventory optimization, facility design, technology integration, and project management services.

Transportation, Logistics, Supply Chain and Storage 馃嚭馃嚫 Westfield 368 1978
27
Veristaverista.com

A leading consultancy firm providing systems, compliance, validation, and quality solutions to life science companies, improving health and lives through advanced technologies

Pharmaceutical Manufacturing 馃嚭馃嚫 Fishers 323 2020
28
Syneos Healthsyneoshealth.com

A fully integrated biopharmaceutical solutions organization accelerating customer success by combining clinical, medical, and commercial capabilities worldwide

Business Consulting and Services 馃嚭馃嚫 Hammond 320 n/a
29
Moser Consultingmoserit.com

Technology solutions company specializing in big data, managed services, IT consulting, custom application development, and employee learning services.

IT Services and IT Consulting 馃嚭馃嚫 Indianapolis 290 1996
30
Corsica Technologiescorsicatech.com

A top cybersecurity and managed IT provider helping businesses leverage technology for success, with a focus on data protection and business advancement

IT Services and IT Consulting 馃嚭馃嚫 Fort Wayne 231 2003
31
Butler, Fairman & Seufert, Inc.bfsengr.com

A leading civil engineering firm providing exceptional services to governments and businesses through communication, teamwork, and innovative approaches for successful projects

Civil Engineering 馃嚭馃嚫 Indianapolis 212 1961
32
Schmidt Associatesschmidt-arch.com

Passionate team of architects, engineers, and interior designers creating inspiring spaces for schools, hospitals, community centers, and corporate offices #design #architecture #engineering

Architecture and Planning 馃嚭馃嚫 Indianapolis 182 1976
33
Superior Engineering, LLCsuperiorengineering.com

Superior Engineering provides professional engineering services with a focus on mechanical, electrical, instrumentation, controls, and process chemical disciplines for industrial and commercial clients

Industrial Machinery Manufacturing 馃嚭馃嚫 Hammond 128 1962
34
Roeing IT Solutionsroeing.com

A technology solutions provider with 30+ years of experience, offering customized solutions to align with business goals and gain competitive advantage

IT Services and IT Consulting 馃嚭馃嚫 Lafayette 61 1979
35
UHAS, Inc.uhasinc.com

A consulting firm specializing in providing actuarial, management, and underwriting services for various individual and group health insurance products

Financial Services 馃嚭馃嚫 Carmel 55 2003
36
Zinc Partners LLCzincpartners.us

The company is a Salesforce consulting partner that specializes in custom app development and digital transformation services

IT Services and IT Consulting 馃嚭馃嚫 Indianapolis 40 2019
37
Galvin Technologiesgalvintech.com

A Salesforce Consulting Company in Indianapolis specializing in Salesforce, CRM, and Pardot implementations for businesses

IT Services and IT Consulting 馃嚭馃嚫 Carmel 28 2003
38
Intrinz Inc.intrinzinc.com

A global consulting firm offering services in Project Management, Corporate Finance, International Business, Language Translation, and Business Strategy with experienced consultants

Business Consulting and Services 馃嚭馃嚫 Fishers 25 2011
39
Vespa Group LLCvespa-group.com

An Indianapolis based technology consulting firm founded in 2014, specializing in providing value-driven solutions for public and private sector organizations

IT Services and IT Consulting 馃嚭馃嚫 Indianapolis 21 2014
40
Capital Cities, LLCcapcities.com

Investment advisory firm offering comprehensive consulting solutions to institutional clients, focusing on objective advice, fiduciary duties, performance improvement, and risk management

Financial Services 馃嚭馃嚫 Indianapolis 15 n/a
41
HUB CSi Advisory Servicescsiadvisoryservices.com

Retirement plan consulting firm focusing on participant outcomes, investment outcomes, financial coaching, and wealth management with LPL Financial and Global Retirement Partners

Financial Services 馃嚭馃嚫 Indianapolis 13 1971
42
Sharper Business Solutions, LLCsharperprocess.com

This company helps businesses improve efficiency by streamlining processes, freeing up time, and providing systems management They prioritize integrity and giving back

Business Consulting and Services 馃嚭馃嚫 Crown Point 10 2016
43
Growth Heroesgrowthheroes.com

A company specializing in digital transformation to optimize processes, integrate systems, and help businesses grow by streamlining data flow

IT Services and IT Consulting 馃嚭馃嚫 Indianapolis 10 2012
44
Lachesislachesisllc.com

The company helps businesses enhance security, minimize risk, and drive ROI through data-driven transformations, fostering self-sufficiency with existing resources

Business Consulting and Services 馃嚭馃嚫 South Bend 6 2016
45
Snakeit Technologiessnakeittech.com

Providing IT solutions globally, specializing in software development, custom solutions, and offering skilled professionals in various fields including AI and BI

IT Services and IT Consulting 馃嚭馃嚫 Indianaplois 4 2019
46
BlackBox LLCblkbox.co

Information technology consulting services providing software implementation, development, and support to help clients improve business operations and efficiency

IT Services and IT Consulting 馃嚭馃嚫 Indianapolis 3 n/a
47
Culture of Good, Inc.cultureofgood.com

This company specializes in Culture and Leadership Development, helping businesses align their culture with employees and foster positive engagement

Business Consulting and Services 馃嚭馃嚫 Fishers 2 2013
48
Soufan Consulting LLCsoufanconsulting.com

The company offers AWS consulting services to assist clients in transitioning to the digital future with expert guidance and support

IT Services and IT Consulting 馃嚭馃嚫 Indianapolis 2 n/a

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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 2, 2026.

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