# The 30 largest professional services firms in Minneapolis

Tamtam tracks 64 professional services firms headquartered in Minneapolis. This list ranks the 30 largest by number of employees on LinkedIn, led by HGA, Piper Sandler and Currently Seeking Opportunities. Their median headcount is 633. Half of them were founded in 1978 or later.

These Minneapolis-based professional services firms are predominantly large, established companies, many founded in the mid-20th century. The list includes a strong presence of architecture, engineering, and legal practices.

Notable firms include HGA, a national design firm specializing in architecture and engineering, and Piper Sandler, an investment bank. Dorsey & Whitney LLP provides legal advice and business partnership to global companies. Barr Engineering Co. is an engineering and environmental consulting firm. A common thread is the provision of specialized expertise across various sectors, from financial services to real estate and IT consulting.

🇺🇸 Minneapolis · 30 companies · Updated Nov 11, 2026

| # | Company | Industry | Headquarters | Employees | Founded |
|---|---|---|---|---|---|
| 1 | [HGA](https://www.tamtam.ai/c/hga) (hga.com)<br>National design firm specializing in architecture and engineering, creating impactful and award-winning designs for healthcare, arts, education, government, science, technology, and energy sectors | Architecture and Planning | 🇺🇸 Minneapolis | 2,141 | 1953 |
| 2 | [Piper Sandler](https://www.tamtam.ai/c/piper-sandler) (pipersandler.com)<br>A leading investment bank offering a full suite of products and services to clients globally, specializing in various sectors and geographies | Financial Services | 🇺🇸 Minneapolis | 2,127 | 1895 |
| 3 | [Currently Seeking Opportunities](https://www.tamtam.ai/c/currently-seeking-opportunities) (soladayolson.com)<br>Specializing in diverse talent acquisition, job search guidance, and facilitating relationships between businesses for mutual growth and opportunities | Graphic Design | 🇺🇸 Minneapolis | 2,080 |  |
| 4 | [AIC](https://www.tamtam.ai/c/aic-minneapolis) (innovasolutions.com)<br>A leading talent services firm providing skilled IT, Engineering, and Finance professionals to clients nationwide with a commitment to excellence and innovation | Staffing and Recruiting | 🇺🇸 Minneapolis | 1,858 | 1966 |
| 5 | [Ryan Companies US, Inc.](https://www.tamtam.ai/c/ryan-companies-us-inc) (ryancompanies.com)<br>A national leader in commercial real estate services, focused on bringing value to people, communities, and projects through collaboration and core values | Real Estate | 🇺🇸 Minneapolis | 1,841 | 1938 |
| 6 | [Dorsey & Whitney LLP](https://www.tamtam.ai/c/dorsey-and-whitney-llp) (dorsey.com)<br>Provides legal advice and business partnership to global companies, specializing in mergers and acquisitions, capital markets, and complex litigation across various industries since 1912. | Law Practice | 🇺🇸 Minneapolis | 1,611 | 1912 |
| 7 | [WSB](https://www.tamtam.ai/c/wsb) (wsbeng.com)<br>A design and consulting firm offering engineering, planning, environmental, and construction services with over 1,100 staff nationwide, connecting dreams to reality | Civil Engineering | 🇺🇸 Minneapolis | 1,354 | 1995 |
| 8 | [Barr Engineering Co.](https://www.tamtam.ai/c/barr-engineering-co) (barr.com)<br>Engineering and environmental consulting firm with over 1,000 experts serving diverse industries worldwide, specializing in resource development, management, and restoration EEO employer | Professional Services | 🇺🇸 Minneapolis | 1,149 | 1966 |
| 9 | [Braun Intertec Corporation](https://www.tamtam.ai/c/braun-intertec-corporation) (braunintertec.com)<br>Employee-owned geotechnical engineering, environmental consulting, and testing firm with over 1,000 employee-owners promoting wellness and a culture of ownership | Civil Engineering | 🇺🇸 Minneapolis | 1,041 | 1957 |
| 10 | [NELSON Worldwide](https://www.tamtam.ai/c/nelson-worldwide) (nelsonworldwide.com)<br>An award-winning firm providing architecture, interior design, graphic design, and brand strategy services to transform the human experience and environments globally | Design Services | 🇺🇸 Minneapolis | 1,013 | 1977 |
| 11 | [phData](https://www.tamtam.ai/c/phdata) (phdata.io)<br>Specializing in Snowflake and modern data technologies, we provide end-to-end services for data products, platforms, machine learning, and data analytics support | IT Services and IT Consulting | 🇺🇸 Minneapolis | 876 | 2014 |
| 12 | [Fredrikson & Byron, P.A.](https://www.tamtam.ai/c/fredrikson-and-byron-p-a) (fredlaw.com)<br>A firm specializing in legal services with a focus on business acumen, proactive problem-solving, and strategic partnerships to meet client objectives | Law Practice | 🇺🇸 Minneapolis | 867 | 1948 |
| 13 | [Concord](https://www.tamtam.ai/c/concord) (concordusa.com)<br>Technology consultancy creating seamless customer experiences with strong analytics and data foundations to accelerate business value through technology integration, optimization, and activation | IT Services and IT Consulting | 🇺🇸 Minneapolis | 746 | 2003 |
| 14 | [United Language Group](https://www.tamtam.ai/c/united-language-group) (propio.com)<br>A global translation and interpretation company with expertise in over 200 languages, serving various industries using cutting-edge technology and linguistic skills | Translation and Localization | 🇺🇸 Minneapolis | 684 | 2016 |
| 15 | [RSP Architects](https://www.tamtam.ai/c/rsp-architects) (rsparch.com)<br>This company is a team of designers and architects who provide a wide range of services to clients in various industries globally | Architecture and Planning | 🇺🇸 Minneapolis | 633 | 1978 |
| 16 | [Ovative Group](https://www.tamtam.ai/c/ovative-group) (ovative.com)<br>A digital-first media and measurement firm transforming marketing success with Paid and Owned Media Services, Omni-Channel Measurement, and Strategy Consulting | Advertising Services | 🇺🇸 Minneapolis | 587 | 2009 |
| 17 | [Bowman and Brooke](https://www.tamtam.ai/c/bowman-and-brooke) (bowmanandbrooke.com)<br>National trial firm specializing in product liability defense for Global 500 companies, with over 150 attorneys and offices across the US | Law Practice | 🇺🇸 Minneapolis | 575 | 1985 |
| 18 | [NetSPI](https://www.tamtam.ai/c/netspi) (netspi.com)<br>Pioneered penetration testing as a service, combining security professionals with AI and automation to deliver clarity, speed, and scale across various pentest types. | Computer and Network Security | 🇺🇸 Minneapolis | 574 | 2001 |
| 19 | [Piper Jaffray](https://www.tamtam.ai/c/piper-jaffray) (pipersandler.com)<br>A leading investment bank and institutional securities firm offering a full suite of products, deep expertise in core sectors, and global reach | Financial Services | 🇺🇸 Minneapolis | 559 | 1895 |
| 20 | [Robins Kaplan LLP](https://www.tamtam.ai/c/robins-kaplan-llp) (robinskaplan.com)<br>A premier trial law firm with over 250 attorneys in eight cities, specializing in litigating, mediating, and arbitrating disputes for clients to achieve business results | Legal Services | 🇺🇸 Minneapolis | 525 | 1938 |
| 21 | [MentorMate](https://www.tamtam.ai/c/mentormate) (mentormate.com)<br>Providing strategic insights, design, and engineering services since 2001 to deliver digital transformation and secure solutions for global companies | IT Services and IT Consulting | 🇺🇸 Minneapolis | 499 | 2001 |
| 22 | [SitelogIQ](https://www.tamtam.ai/c/sitelogiq) (sitelogiq.com)<br>Energy efficiency and facility solutions provider improving buildings for residential, educational, healthcare, commercial, and retail spaces to enhance comfort and productivity | Engineering Services | 🇺🇸 Minneapolis | 490 |  |
| 23 | [Opus](https://www.tamtam.ai/c/opus) (opus-group.com)<br>Integrated team with expertise in real estate development, construction, design, and project management, delivering solutions for various commercial projects | Real Estate | 🇺🇸 Minneapolis | 487 | 2010 |
| 24 | [SRF Consulting Group](https://www.tamtam.ai/c/srf-consulting-group) (srfconsulting.com)<br>A full-service consulting firm offering award-winning services in transportation planning, engineering, landscape architecture, project controls, and more across the Midwest | Civil Engineering | 🇺🇸 Minneapolis | 473 | 1961 |
| 25 | [Marsh McLennan Agency - Upper Midwest](https://www.tamtam.ai/c/marsh-mclennan-agency-upper-midwest) (marshmma.com)<br>A leading brokerage agency offering business insurance, employee benefits, retirement planning, and private client insurance solutions across the US and Canada | Insurance | 🇺🇸 Minneapolis | 449 |  |
| 26 | [SRM](https://www.tamtam.ai/c/srm-minneapolis) (srmallc.net)<br>This company helps banks and manufacturers manage credit risk by establishing credit policies and training staff to recognize portfolio risks accurately | Financial Services | 🇺🇸 Minneapolis | 448 | 1989 |
| 27 | [Salo, a Korn Ferry company](https://www.tamtam.ai/c/salo-a-korn-ferry-company) (kornferry.com)<br>A company specializing in staff consulting and talent acquisition services, having joined forces with Korn Ferry to enhance its offerings | Staffing and Recruiting | 🇺🇸 Minneapolis | 440 |  |
| 28 | [broadhead.](https://www.tamtam.ai/c/broadhead) (broadheadco.com)<br>An independent marketing agency specializing in agriculture, food, transportation, and health brands, with a focus on empowering transformation and employee ownership | Advertising Services | 🇺🇸 Minneapolis | 400 | 2001 |
| 29 | [Winthrop & Weinstine, P.A.](https://www.tamtam.ai/c/winthrop-and-weinstine-p-a) (winthrop.com)<br>A full-service commercial law firm founded in 1979, prioritizing client interests with exceptional quality, innovation, and value in legal services | Law Practice | 🇺🇸 Minneapolis | 388 | 1979 |
| 30 | [Carmichael Lynch](https://www.tamtam.ai/c/carmichael-lynch) (carmichaellynch.com)<br>The company collaborates with diverse experts to create top-notch brand-building, culture-changing work that transforms businesses alongside partners | Advertising Services | 🇺🇸 Minneapolis | 352 | 1962 |

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