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List of professional services firms in Wisconsin

Tamtam tracks 82 professional services firms headquartered in Wisconsin. This list ranks the 50 largest by number of employees on LinkedIn, led by ManpowerGroup, Manpower and Baird. Their median headcount is 606. Half of them were founded in 1978 or later. The most common headquarters are Milwaukee (24), Madison (8) and Brookfield (3).

馃嚭馃嚫 Wisconsin50 companiesUpdated Nov 11, 2026

The professional services firms in Wisconsin listed here are primarily large, established companies, many of which have a global reach. They span a variety of sectors including staffing and recruiting, financial services, business consulting, legal practices, and IT services. Notable examples include ManpowerGroup, a global workforce solutions company; Baird, offering wealth management and investment banking; Foley & Lardner LLP, a global law firm; and Nordic Global, a strategic partner for healthcare providers.

A clear pattern among these companies is the concentration of headquarters in Milwaukee, with several firms like ManpowerGroup, Baird, and Wipfli based there. Additionally, a significant number of these companies were founded in the mid-20th century or earlier, indicating a strong presence of long-standing institutions in Wisconsin's professional services landscape.

#CompanyIndustryHeadquarters EmployeesFounded
1
ManpowerGroupmanpowergroup.com

Global workforce solutions company sourcing, assessing, and managing talent for organizations worldwide, while providing sustainable employment opportunities across various industries and skills

Staffing and Recruiting 馃嚭馃嚫 Milwaukee 72,454 1948
2
Manpowermanpower.com

Global leader in contingent and permanent recruitment, providing agile staffing solutions and access to a deep talent pool for businesses.

Staffing and Recruiting 馃嚭馃嚫 Milwaukee 30,000 1948
3
Bairdrwbaird.com

Provides wealth management, investment banking, asset management, equity research, public finance, and private equity services globally.

Financial Services 馃嚭馃嚫 Milwaukee 5,762 1919
4
Wipfliwipfli.com

Business consulting, digital services, audit, and accounting solutions for emerging and mid-market organizations across financial, healthcare, manufacturing, construction, and government sectors.

Business Consulting and Services 馃嚭馃嚫 Milwaukee 3,655 1930
5
Foley & Lardner LLPfoley.com

A global law firm specializing in Energy, Health Care, Technology, and Manufacturing sectors, providing creative solutions and full-service legal support

Law Practice 馃嚭馃嚫 Milwaukee 3,067 1842
6
Nordic Globalnordicglobal.com

Strategic partner for healthcare providers offering advisory, managed services, implementation, staffing, and ERP to modernize health IT systems globally.

IT Services and IT Consulting 馃嚭馃嚫 Madison 2,519 2010
7
Right Managementright.com

Global provider of outplacement, career management, and leadership development solutions to support talent transitions and organizational growth.

Business Consulting and Services 馃嚭馃嚫 Milwaukee 2,370 1980
8
Cielo Talentcielotalent.com

Global partner providing innovative talent acquisition strategies and recruitment process outsourcing solutions to help companies secure top talent worldwide.

Human Resources Services 馃嚭馃嚫 Wauwatosa 1,727 2005
9
Salutesalute.com

Global Data Center services company utilizing military practices to deliver cost-effective, resilient, and scalable solutions Supports veterans by offering career opportunities

IT Services and IT Consulting 馃嚭馃嚫 Franklin 1,624 2013
10
ManpowerGroup Talent Solutionsmpgtalentsolutions.com

This company combines RPO, TAPFIN-MSP, and Right Management to provide data-driven talent solutions across the entire workforce lifecycle globally

Staffing and Recruiting 馃嚭馃嚫 Milwaukee 1,499 1948
11
Mead & Huntmeadhunt.com

An employee-owned consulting firm that provides expert planning, architecture, engineering, and environmental services in various market sectors nationwide

Professional Services 馃嚭馃嚫 Middleton 1,445 1900
12
TotalMedub.tnaa.com

TotalMed provides staffing services for hospitals, medical groups, health plans, and life sciences companies by sourcing clinical, allied, and non-clinical professionals

Staffing and Recruiting 馃嚭馃嚫 Appleton 1,336 2005
13
Quarles & Brady LLPquarles.com

Legal services provider with 125+ years of experience, offering quality counsel and strategic partnerships to a diverse range of industries nationwide

Law Practice 馃嚭馃嚫 Milwaukee 1,305 1892
14
QPS Employment Groupqpsemployment.com

A staffing agency specializing in IT, accounting, finance, and HR positions for the manufacturing industry with a focus on customer service and employee satisfaction

Staffing and Recruiting 馃嚭馃嚫 Brookfield 1,123 1985
15
Affiliated Engineers, Inc.aeieng.com

Engineering leadership in complex projects for buildings, energy, and utilities, delivering high-performance systems that positively impact society and improve the world

Professional Services 馃嚭馃嚫 Madison 1,065 1978
16
Jefferson Wellsjeffersonwells.com

A global leader in professional talent and solutions, accelerating business growth and careers by providing specialized expertise and proven workforce solutions

Management Consulting 馃嚭馃嚫 Milwaukee 966 1995
17
The Foth Companiesfoth.com

A multidisciplinary firm providing innovative solutions in science, engineering, and technology, focused on client-centered service, collaboration, and delivering results

Engineering Services 馃嚭馃嚫 De Pere 895 1938
18
Franklin Energyfranklinenergy.com

Provides comprehensive sustainability solutions focusing on lowering energy costs, reducing carbon emissions, minimizing waste, and supporting community and economic growth.

Business Consulting and Services 馃嚭馃嚫 Port Washington 866 1994
19
STS Technical Servicesststechnicaljobs.com

A Top 100 Staffing Firm specializing in aerospace, manufacturing, defense, and industrial industries, connecting talented individuals with global career opportunities

Staffing and Recruiting 馃嚭馃嚫 Brookfield 859 n/a
20
Michael Bestmichaelbest.com

A leading law firm providing a full range of legal services to clients globally, specializing in intellectual property, labor, litigation, and more

Law Practice 馃嚭馃嚫 Milwaukee 856 1848
21
Farming Agriculturepsypr.com

Agricultural company located in Platteville, Wisconsin, specializing in farming operations and practices

Farming 馃嚭馃嚫 Platteville 846 n/a
22
JME Eden Enterprises DBA HR Block

A franchise-owned company specializing in tax preparation and bookkeeping services for small businesses

Financial Services 馃嚭馃嚫 Plover 770 n/a
23
PRN Healthcareprnhealthservices.com

A healthcare staffing agency founded on compassion and faith-based values, prioritizing strong relationships with nurses and clients for better patient care

Staffing and Recruiting 馃嚭馃嚫 Appleton 748 1995
24
Artisan Partnersartisanpartners.com

Global investment platform offering diverse, high value-added multi-asset strategies managed by autonomous teams for sophisticated institutional clients.

Financial Services 馃嚭馃嚫 Milwaukee 637 1994
25
MSA Professional Servicesmsa-ps.com

A full-service consulting firm specializing in sustainable community development, infrastructure solutions, and employee ownership to create better places to live

Civil Engineering 馃嚭馃嚫 Baraboo 606 n/a

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26
Infotech Enterprises, Inc.infotechenterprises.com

A consulting firm specializing in Mobile Apps, Custom Software, Web Development, and Integrations, with a focus on understanding business challenges and creating impactful solutions

IT Services and IT Consulting 馃嚭馃嚫 Brookfield 587 1993
27
Executive Director, Inc.execinc.com

Association management company with 50 years of experience, specializing in professional services for medical, certification, and scientific associations on national and international levels

Non-profit Organizations 馃嚭馃嚫 Milwaukee 586 1962
28
Translator

Experience design agency in Milwaukee, WI specializing in human-centered business, helping organizations become "un-stuck" with sustainable solutions and innovative thinking

Design Services 馃嚭馃嚫 Milwaukee 577 2010
29
M3 Insurancem3ins.com

A leading insurance broker and risk management firm in America, providing world-class resources for managing risk, purchasing insurance, and offering employee benefits

Insurance 馃嚭馃嚫 Madison 567 1968
30
SVA | A Professional Services Companysva.com

A highly diversified professional services provider offering expert consulting and certified public accounting services to help clients achieve their individual and business goals

Financial Services 馃嚭馃嚫 Madison 560 1974
31
Hammeshammes.com

A vertically integrated real estate solutions platform specializing in healthcare development, investment, project management, and property management with industry-leading experience and talent

Real Estate 馃嚭馃嚫 Milwaukee 545 1991
32
Delvedelve.com

A multidisciplinary product innovation firm guiding clients through complexities, delivering sustainable success with expertise in research, strategy, design, and engineering

Design Services 馃嚭馃嚫 Madison 499 1967
33
Reinhart Boerner Van Deuren s.c.reinhartlaw.com

A trusted law firm providing innovative and efficient legal counsel to a diverse range of clients in various industries since 1894

Law Practice 馃嚭馃嚫 Milwaukee 489 1894
34
Ayres Associatesayresassociates.com

A nationwide team of industry experts offering architecture, engineering, environmental services, and more to create reliable infrastructure through innovative solutions and strong partnerships

Civil Engineering 馃嚭馃嚫 Eau Claire 486 1959
35
bvkbvk.com

BVK offers integrated services to create and maintain brand momentum by surrounding consumers with the brand at every touchpoint

Advertising Services 馃嚭馃嚫 Milwaukee 481 1984
36
ManpowerGroup Colombiamanpowergroupcolombia.co

Global leader in innovative human capital solutions with over 70 years of experience Providing dignified employment opportunities, training millions of individuals, and advising on labor market policies

Human Resources Services 馃嚭馃嚫 Milwaukee 476 1976
37
FlexTradesflextrades.com

FlexTrades provides specialized contract labor to manufacturing companies, offering rapid deployment of skilled workers to fill production gaps and meet deadlines

Staffing and Recruiting 馃嚭馃嚫 Hudson 463 2004
38
Strand Associates, Inc.庐strand.com

Provides consulting engineering services including municipal, wastewater, water, transportation, and structural, focusing on infrastructure design and sustainable solutions for public and private sectors.

Civil Engineering 馃嚭馃嚫 Madison 454 1946
39
EUAeua.com

A leading architecture and design firm with 116 years of experience, offering solutions in education, workplace, healthcare, and more nationwide

Architecture and Planning 馃嚭馃嚫 Milwaukee 446 1907
40
Godfrey & Kahngklaw.com

Providing strategic legal advice and solutions for businesses in various industries with a focus on corporate law, estate planning, litigation, and more

Law Practice 馃嚭馃嚫 Milwaukee 440 1957
41
Design Conceptsdelve.com

A creative consultancy specializing in innovation, design, branding, strategy, research, engineering, and prototyping to help clients build successful businesses

Design Services 馃嚭馃嚫 Madison 436 1967
42
Terraterrateamup.com

Provides expert, tailored language solutions for global audiences, specializing in translation, localization, and linguistic quality assurance across various industries, ensuring high quality and security.

Translation and Localization 馃嚭馃嚫 Milwaukee 416 2000
43
Kalypso: A Rockwell Automation Businesskalypso.com

Delivers digital solutions through digital threads and autonomous systems using AI and machine learning to optimize product development, manufacturing, and supply chains.

Business Consulting and Services 馃嚭馃嚫 Milwaukee 401 2004
44
Kapur & Associateskapurinc.com

Engineering consulting firm providing innovative solutions to clients nationwide for over 40 years, offering expertise, technical knowledge, and employee ownership

Civil Engineering 馃嚭馃嚫 Milwaukee 384 1981
45
Flad Architectsflad.com

A global leader in innovative design solutions for healthcare, higher education, and science and technology clients, empowering knowledge-based organizations to excel

Architecture and Planning 馃嚭馃嚫 Madison 384 1927
46
GRAEFgraef-usa.com

A leading US consulting firm with diverse technical expertise in analysis, design, and construction serving clients across various industries and project categories

Engineering Services 馃嚭馃嚫 Milwaukee 355 1961
47
Evergreen Healthcare Partnersevergreen.partners

Healthcare IT consulting firm offering industry-leading expertise in EHR and ERP implementations, optimization, and support services nationwide Trusted partnership with authentic relationships

IT Services and IT Consulting 馃嚭馃嚫 Middleton 354 2017
48
Excel Engineering, Inc.excelengineer.com

National full-service architectural and engineering firm offering design, engineering, and scanning services for various markets, focused on customer-centered teamwork and exceeding client expectations

Architecture and Planning 馃嚭馃嚫 Fond du Lac 354 1991
49
Iconicx Servicessalute.com

The company specializes in commissioning agents and managers for data center facilities, prioritizing QA/QC to ensure successful operation and reliability

Professional Services 馃嚭馃嚫 Franklin 347 2013
50
Bloom Companies, LLCbloomcos.com

The company provides sustainable design and construction engineering solutions to government, municipal, industrial, and commercial clients with cost-effective design and superior service

Civil Engineering 馃嚭馃嚫 Milwaukee 333 1998

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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 11, 2026.

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