he organizations and individuals listed below have invested in companies we defined as Milwaukee-area startups in our Metro Milwaukee Innovation DataTool. They are ordered based on the number of investments they have made in those companies; data on the value of these investments were not available.
Click here for our list of Milwaukee-area startups. (Source: PitchBook Data, Inc.)
| Investor | Primary Investor Type | HQ Location | # of Investments in MKE Area Startups |
| Wisconsin Economic Development | Government | Madison, WI | 44 |
| gBETA | Accelerator/Incubator | Madison, WI | 40 |
| BrightStar Wisconsin Foundation | Venture Capital | Milwaukee, WI | 30 |
| gener8tor | Accelerator/Incubator | Madison, WI | 28 |
| National Science Foundation | Government | Alexandria, VA | 19 |
| CSA Partners | Venture Capital | Milwaukee, WI | 13 |
| Cream City Ventures | Corporate Venture Capital | Milwaukee, WI | 11 |
| Right Side Capital Management | Venture Capital | San Francisco, CA | 11 |
| The BREW Accelerator | Accelerator/Incubator | Milwaukee, WI | 11 |
| Madworks Accelerator | Accelerator/Incubator | Madison, WI | 9 |
| Golden Angels Investors | Angel Group | Brookfield, WI | 8 |
| Winnebago Seed Fund | Venture Capital | Neenah, WI | 8 |
| Wisconsin Super Angel Fund | Angel Group | Milwaukee, WI | 8 |
| Arenberg Holdings | Venture Capital | Milwaukee, WI | 7 |
| Rock River Capital Partners | Venture Capital | Madison, WI | 7 |
| UWM Research Foundation | Limited Partner | Milwaukee, WI | 7 |
| WAFTT Capital | Venture Capital | Mequon, WI | 7 |
| Ideadvance | Accelerator/Incubator | Madison, WI | 6 |
| Plug and Play Tech Center | Accelerator/Incubator | Sunnyvale, CA | 6 |
| TitletownTech | Venture Capital | Green Bay, WI | 6 |
| Tundra Angels | Angel Group | Green Bay, WI | 6 |
| U.S. Department of Health and Human Services | Government | Washington, DC | 6 |
| Advocate Aurora Health | Corporation | Downers Grove, IL | 5 |
| Doyenne Group | Accelerator/Incubator | Monona, WI | 5 |
| Gateway Capital Partners (Milwaukee) | Venture Capital | Milwaukee, WI | 5 |
| M25 | Venture Capital | Chicago, IL | 5 |
| The Milky Way Tech Hub | Accelerator/Incubator | Milwaukee, WI | 5 |
| U.S. Department of Energy | Government | Washington, DC | 5 |
| Wisconsin Investment Partners | Angel Group | Madison, WI | 5 |
| Capital Midwest Fund | Venture Capital | Mequon, WI | 4 |
| Evergreen Climate Innovations | Venture Capital | Chicago, IL | 4 |
| Gary Comer | PE/Buyout | Waukesha, WI | 4 |
| HealthX Ventures | Venture Capital | Madison, WI | 4 |
| Imagine H2O | Accelerator/Incubator | San Francisco, CA | 4 |
| N29 Capital Partners | Venture Capital | Manitowish Waters, WI | 4 |
| Project Pitch It | Corporation | 4 | |
| The National Institute on Aging (NIA) | Government | Bethesda, MD | 4 |
| Young Enterprising Society | Accelerator/Incubator | Milwaukee, WI | 4 |
| American Family Ventures | Corporate Venture Capital | New York, NY | 3 |
| Christopher Armbrust | Angel (individual) | Mequon, WI | 3 |
| Cornerstone Angels | Angel Group | Northbrook, IL | 3 |
| Idea Fund of La Crosse | Venture Capital | La Crosse, WI | 3 |
| Jeffrey Rusinow | Angel (individual) | Ozaukee County, WI | 3 |
| Lancaster Investments | Family Office | Madison, WI | 3 |
| Lupa Systems | PE/Buyout | New York, NY | 3 |
| MaSa Partners | Impact Investing | Madison, WI | 3 |
| Sachse Family Fund | Family Office | Milwaukee, WI | 3 |
| Sand Hill Angels | Angel Group | Mountain View, CA | 3 |
| Serra Ventures | Venture Capital | Champaign, IL | 3 |
| StartUp Health | Venture Capital | New York, NY | 3 |
| Techstars | Accelerator/Incubator | New York, NY | 3 |
| VC 414 | Venture Capital | Milwaukee, WI | 3 |
| Alligator Holdings | Venture Capital | Waukesha, WI | 2 |
| Allos Ventures | Venture Capital | Carmel, IN | 2 |
| Arch Grants | Not-For-Profit Venture Capital | Saint Louis, MO | 2 |
| Arpa-E | Government | Washington, DC | 2 |
| Baird Capital | PE/Buyout | Chicago, IL | 2 |
| BBG Ventures (North America) | Venture Capital | New York, NY | 2 |
| Beta Boom | Venture Capital | Salt Lake City, UT | 2 |
| Betaworks Ventures | Venture Capital | New York, NY | 2 |
| Central Illinois Angels | Angel Group | Peoria, IL | 2 |
| Clean Energy Ventures | Venture Capital | Boston, MA | 2 |
| Cleantech Open | Accelerator/Incubator | Los Angeles, CA | 2 |
| Connetic Ventures | Venture Capital | Covington, KY | 2 |
| Creative Destruction Lab | Accelerator/Incubator | Toronto, Canada | 2 |
| Daren Cotter | Angel (individual) | Springfield, OH | 2 |
| Dark Knight Capital Ventures | Venture Capital | Milwaukee, WI | 2 |
| Darrell Silver | Angel (individual) | New York, NY | 2 |
| Discovery to Product | Accelerator/Incubator | Madison, WI | 2 |
| Dundee Venture Capital | Venture Capital | Omaha, NE | 2 |
| Energy Foundry | Venture Capital | Chicago, IL | 2 |
| First Trust Capital Partners | Venture Capital | Wheaton, IL | 2 |
| Five Mile Capital Partners | Asset Manager | Stamford, CT | 2 |
| FOR-M | Accelerator/Incubator | Milwaukee, WI | 2 |
| Gaingels | Venture Capital | Burlington, VT | 2 |
| Greentown Labs | Accelerator/Incubator | Somerville, MA | 2 |
| GrowthX Capital | Venture Capital | San Francisco, CA | 2 |
| Health Wildcatters | Accelerator/Incubator | Dallas, TX | 2 |
| Jennifer Abele | Angel (individual) | Milwaukee, WI | 2 |
| Joe Kirgues | Angel (individual) | Madison, WI | 2 |
| Joel Abraham | Angel (individual) | 2 | |
| Joseph A. B. Hausch | Angel (individual) | 2 | |
| Kevin O’Brien | Angel (individual) | Brookfield, WI | 2 |
| Marc Lasry | Limited Partner | New York, NY | 2 |
| Medical College of Wisconsin Endowment | Limited Partner | Milwaukee, WI | 2 |
| Milwaukee | Venture Capital | Milwaukee, WI | 2 |
| MKE Tech Hub Coalition | Accelerator/Incubator | Milwaukee, WI | 2 |
| Motivate Venture Capital | Venture Capital | Chicago, IL | 2 |
| National Institutes of Health | Government | Bethesda, MD | 2 |
| National Science Foundation Innovation Corps Program | Accelerator/Incubator | Alexandria, VA | 2 |
| NFI Ventures | Venture Capital | Camden, NJ | 2 |
| NIH Seed | Not-For-Profit Venture Capital | Bethesda, MD | 2 |
| Northwestern Mutual | Corporation | Milwaukee, WI | 2 |
| Pat Farley | Angel (individual) | 2 | |
| Perot Jain | Venture Capital | Dallas, TX | 2 |
| Plymouth Growth | Venture Capital | Ann Arbor, MI | 2 |
| Ravi Kalla | Angel (individual) | Madison, WI | 2 |
| Seven Seven Six | Venture Capital | Jupiter, FL | 2 |
| Slojo Investments | Venture Capital | Chicago, IL | 2 |
| Sputnik ATX | Accelerator/Incubator | Austin, TX | 2 |
| Stormbreaker Ventures | Venture Capital | San Francisco, CA | 2 |
| SVG Ventures | Venture Capital | Los Gatos, CA | 2 |
| The Center for Technology Commercialization | Government | Madison, WI | 2 |
| TVC Capital | Growth/Expansion | La Jolla, CA | 2 |
| Twenty Seven Ventures | Venture Capital | Grand Cayman, Cayman Islands | 2 |
| Union Square Ventures | Venture Capital | New York, NY | 2 |
| University of Wisconsin – Oshkosh | University | Oshkosh, WI | 2 |
| Venture 53 | Venture Capital | Atlanta, GA | 2 |
| WERCBench Labs | Accelerator/Incubator | Milwaukee, WI | 2 |
| Whitewater’s Community Development Authority | Government | Whitewater, WI | 2 |
| Winnow Fund | Venture Capital | Madison, WI | 2 |
| WISC Partners | Venture Capital | Madison, WI | 2 |
| 11.2 Ventures | Accelerator/Incubator | Chicago, IL | 1 |
| 1945 Capital | Family Office | Sheboygan Falls, WI | 1 |
| 30Ventures | Venture Capital | Madison, WI | 1 |
| 43North | Accelerator/Incubator | Buffalo, NY | 1 |
| 5 Lakes Forum | Corporation | Milwaukee, WI | 1 |
| 94labs | Accelerator/Incubator | Milwaukee, WI | 1 |
| 9Mile Labs | Venture Capital | Seattle, WA | 1 |
| Adie Akuffo-Afful | Angel (individual) | 1 | |
| Agropromyshlennaya Kompaniya OGO | Corporation | Moscow, Russia | 1 |
| Akuna Capital | Hedge Fund | Chicago, IL | 1 |
| Alternative Investment Management | Fund of Funds | New York, NY | 1 |
| Amit Pamecha | Angel (individual) | St. Petersburg, FL | 1 |
| Amit Sevak | Angel (individual) | Princeton, NJ | 1 |
| Amy Slawson | Angel (individual) | 1 | |
| Anduril Investors | Venture Capital | 1 | |
| Angel Investors | Venture Capital | Los Angeles, CA | 1 |
| Angels on the Water | Angel Group | Oshkosh, WI | 1 |
| Applied Equity Partners | Growth/Expansion | Boston, MA | 1 |
| Arthur Ventures | Venture Capital | Minneapolis, MN | 1 |
| Aster Capital | Venture Capital | Paris, France | 1 |
| AT&T Aspire Accelerator | Accelerator/Incubator | San Francisco, CA | 1 |
| B Capital Group | Venture Capital | Manhattan Beach, CA | 1 |
| Backstage Capital | Venture Capital | Los Angeles, CA | 1 |
| Badger Fund of Funds | Venture Capital | Madison, WI | 1 |
| Barbara Baade | Angel (individual) | 1 | |
| Benjamin Gaddy | Angel (individual) | Kirkland, WA | 1 |
| Bill Staudenmaier | Angel (individual) | 1 | |
| BioForward | Corporation | 1 | |
| Blackthorne Partners | PE/Buyout | Delafield, WI | 1 |
| Bold Brain Capital | Venture Capital | Durham, NC | 1 |
| Bootstrappers.mn | Venture Capital | Saint Paul, MN | 1 |
| Booz Allen Hamilton (NYS: BAH) | Corporation | McLean, VA | 1 |
| Booz Allen Ventures | Corporate Venture Capital | McLean, VA | 1 |
| bp Ventures | Corporate Venture Capital | London, United Kingdom | 1 |
| BraceUnder | VC-Backed Company | Chicago, IL | 1 |
| Brand Capital International | Corporate Venture Capital | 1 | |
| Breakout Labs | Not-For-Profit Venture Capital | San Francisco, CA | 1 |
| Bridge to Cures | Accelerator/Incubator | Wauwatosa, WI | 1 |
| BRIIA | Accelerator/Incubator | San Ramon, CA | 1 |
| BrokerTech Ventures | Accelerator/Incubator | Des Moines, IA | 1 |
| Bronze Valley | Not-For-Profit Venture Capital | Birmingham, AL | 1 |
| Business Incubator Center | Accelerator/Incubator | Grand Junction, CO | 1 |
| Cadence Healthcare Ventures | Venture Capital | Ross, CA | 1 |
| Cameron Ventures | Venture Capital | Oklahoma City, OK | 1 |
| Capital Factory | Venture Capital | Austin, TX | 1 |
| CCS Holding Group | Venture Capital | Miami Beach, FL | 1 |
| CFV Ventures | Venture Capital | Charlotte, NC | 1 |
| Cheryl Brandt-Dib | Angel (individual) | 1 | |
| Cirque Ventures | Venture Capital | Salt Lake City, UT | 1 |
| Comeback Capital | Venture Capital | Cleveland, OH | 1 |
| Concordia Angel Network | Angel Group | Austin, TX | 1 |
| Concordia University Wisconsin | Corporation | Mequon, WI | 1 |
| Connected Ventures | Family Office | Sterling, VA | 1 |
| Constellation Brands (NYS: STZ) | Corporation | Rochester, NY | 1 |
| Covenant Capitol | Angel (individual) | 1 | |
| D1ASP0RA | Accelerator/Incubator | Madison, WI | 1 |
| Daniel Rotman | Angel (individual) | 1 | |
| Daniel Terry | Angel (individual) | 1 | |
| Dave Sachse | Angel (individual) | Milwaukee, WI | 1 |
| David Kellogg | Angel (individual) | London, United Kingdom | 1 |
| David Young | Angel (individual) | 1 | |
| Davis Wright Tremaine | Corporation | Seattle, WA | 1 |
| DBO Capital | Venture Capital | Panama | 1 |
| Deborah Quazzo | Angel (individual) | Chicago, IL | 1 |
| Del Johnson | Angel (individual) | 1 | |
| Delaware Division of Small Business | Government | Dover, DE | 1 |
| Department of Agriculture | Government | New Delhi, India | 1 |
| Donte Murry | Angel (individual) | 1 | |
| Draper Richards Kaplan Foundation | Impact Investing | Menlo Park, CA | 1 |
| Duncan Niederauer | Angel (individual) | New York, NY | 1 |
| Earth Foundry | Impact Investing | Chicago, IL | 1 |
| Edge (Onalaska) | Corporate Venture Capital | Onalaska, WI | 1 |
| Emerson Collective | Impact Investing | Palo Alto, CA | 1 |
| Engine Ventures | Venture Capital | Cambridge, MA | 1 |
| Eniac Ventures | Venture Capital | New York, NY | 1 |
| Environmental Systems Research Institute | Corporation | Redlands, CA | 1 |
| FinRebel | Venture Capital | New York, NY | 1 |
| FinTech Sandbox | Accelerator/Incubator | Boston, MA | 1 |
| Floodgate | Venture Capital | Menlo Park, CA | 1 |
| Flybridge Capital Partners | Venture Capital | New York, NY | 1 |
| Food Finance Institute | Accelerator/Incubator | Madison, WI | 1 |
| Forum Ventures | Venture Capital | New York, NY | 1 |
| Froedtert Enterprises | Venture Capital | Mequon, WI | 1 |
| Future Founders | Accelerator/Incubator | Chicago, IL | 1 |
| Future of Work Accelerator | Accelerator/Incubator | NJ | 1 |
| gAngels | Angel Group | CA | 1 |
| Geekz Ventures | Accelerator/Incubator | Mableton, GA | 1 |
| Gian Dilawari | Angel (individual) | Greenbelt, MD | 1 |
| Gian Perrone | Angel (individual) | 1 | |
| Global Insurance Accelerator | Accelerator/Incubator | Des Moines, IA | 1 |
| Good Food Accelerator | Accelerator/Incubator | Chicago, IL | 1 |
| Goodwater Capital | Venture Capital | Burlingame, CA | 1 |
| GreenGage Capital | Family Office | Wilmette, IL | 1 |
| Grimley Capital | Venture Capital | Denver, CO | 1 |
| GVP Climate | Venture Capital | New York, NY | 1 |
| Hari Madamalla | Angel (individual) | Saint Louis, MO | 1 |
| Health Level Seven International | Corporation | Ann Arbor, MI | 1 |
| HealthCap | Venture Capital | Stockholm, Sweden | 1 |
| Healthcare Innovation Pitch | Venture Capital | San Francisco, CA | 1 |
| Heartland Ventures | Venture Capital | Columbus, OH | 1 |
| Homegrown CPG | Venture Capital | Abu Dhabi, United Arab Emirates | 1 |
| i.Lab Incubator | Accelerator/Incubator | Charlottesville, VA | 1 |
| IBM Ventures | Corporate Venture Capital | Armonk, NY | 1 |
| IKS Health | Corporation | Coppell, TX | 1 |
| Impact America Fund | Venture Capital | Oakland, CA | 1 |
| Inflect Capital | Venture Capital | Emeryville, CA | 1 |
| Interlock Partners | Venture Capital | Dallas, TX | 1 |
| ISA Ventures | Venture Capital | Cedar Rapids, IA | 1 |
| J Heavey | Angel (individual) | 1 | |
| James Sietstra | Angel (individual) | 1 | |
| January Ventures | Venture Capital | Boston, MA | 1 |
| Jefferson DeAngelis | Angel (individual) | Madison, WI | 1 |
| JetBlue Ventures | Corporate Venture Capital | San Francisco, CA | 1 |
| John Haupt | Angel (individual) | 1 | |
| John Torinus | Angel (individual) | Milwaukee, WI | 1 |
| Jon Eckhardt | Angel (individual) | 1 | |
| Jon Hammes | Angel (individual) | 1 | |
| Jonathan Hua | Angel (individual) | San Francisco, CA | 1 |
| Joseph Beatty | Angel (individual) | 1 | |
| Julie Crosby | Angel (individual) | 1 | |
| Justin Mortara | Angel (individual) | Madison, WI | 1 |
| K8 Ventures | Family Office | Northbrook, IL | 1 |
| Kai Kux | Angel (individual) | 1 | |
| Karl Muth | Angel (individual) | 1 | |
| Keane D’Souza Venture Capital | Venture Capital | Brookfield, WI | 1 |
| Kendall Karpf | Angel (individual) | 1 | |
| Keystone Healthcare Technologies P Ltd | Corporation | 1 | |
| Kimmy Paluch | Angel (individual) | 1 | |
| La Macchia Group | Corporation | Milwaukee, WI | 1 |
| Larry Bernstein | Angel (individual) | 1 | |
| Launch Ventures | Venture Capital | Vancouver, Canada | 1 |
| Launchbox | Accelerator/Incubator | Dublin, Ireland | 1 |
| Laurence Wintersteen | Angel (individual) | 1 | |
| Lee Enterprises (NAS: LEE) | Corporation | Davenport, IA | 1 |
| LFE Capital | PE/Buyout | Naples, FL | 1 |
| Lubar & Co. | PE/Buyout | Milwaukee, WI | 1 |
| Mairs & Power Venture Capital | Venture Capital | Saint Paul, MN | 1 |
| Marcus Lemonis | Angel (individual) | 1 | |
| Mark Bakken | Angel (individual) | Madison, WI | 1 |
| Mark Sellers | Angel (individual) | 1 | |
| Marquette University Endowment | Limited Partner | Milwaukee, WI | 1 |
| Mary Avery | Angel (individual) | 1 | |
| Masao Tejima | Angel (individual) | 1 | |
| MassChallenge | Accelerator/Incubator | Boston, MA | 1 |
| Matchstick Ventures | Venture Capital | Minneapolis, MN | 1 |
| Matter (Consulting Services (B2B)) | Accelerator/Incubator | Chicago, IL | 1 |
| MC Capital | Venture Capital | Coral Gables, FL | 1 |
| MedTech Accelerator | Accelerator/Incubator | Phoenix, AZ | 1 |
| Metrodora Ventures | Venture Capital | New York, NY | 1 |
| Michael Cudahy | Angel (individual) | 1 | |
| Microsoft for Startups | Accelerator/Incubator | Redmond, WA | 1 |
| Midwest Energy Research Consortium | Not-For-Profit Venture Capital | Milwaukee, WI | 1 |
| Milwaukee Venture Partners | Angel Group | Milwaukee, WI | 1 |
| MIT Innovation Initiative | Accelerator/Incubator | Cambridge, MA | 1 |
| Mitsubishi Heavy Industries (TKS: 7011) | Corporation | Tokyo, Japan | 1 |
| Mitsubishi UFJ Capital | Venture Capital | Tokyo, Japan | 1 |
| MK Capital | Venture Capital | Northfield, IL | 1 |
| Nameless Ventures | Venture Capital | Chicago, IL | 1 |
| Nashville Entrepreneur Center | Accelerator/Incubator | Nashville, TN | 1 |
| National Cancer Institute | Government | Bethesda, MD | 1 |
| National Center For Advancing Translational Sciences | Government | Bethesda, MD | 1 |
| Newlin | Venture Capital | Chicago, IL | 1 |
| Northwestern Mutual Capital | Mezzanine | Milwaukee, WI | 1 |
| Northwestern Mutual Future Ventures | Corporate Venture Capital | Milwaukee, WI | 1 |
| Nurse Capital | Venture Capital | Chicago, IL | 1 |
| NVIDIA GPU Ventures | Corporate Venture Capital | Santa Clara, CA | 1 |
| NVNG Investment Advisors | Fund of Funds | Madison, WI | 1 |
| One Million by One Million | Accelerator/Incubator | San Francisco, CA | 1 |
| Open Prairie Ventures | Asset Manager | Effingham, IL | 1 |
| Orrick | Corporation | San Francisco, CA | 1 |
| Oshkosh (NYS: OSK) | Corporation | Oshkosh, WI | 1 |
| Outlier Ventures | Accelerator/Incubator | London, United Kingdom | 1 |
| Owl Ventures | Venture Capital | San Francisco, CA | 1 |
| Patrick McKenna | Angel (individual) | 1 | |
| Patrick Willms | Angel (individual) | 1 | |
| Peter Gunder | Angel (individual) | 1 | |
| Pi Ventures | Venture Capital | Mumbai, India | 1 |
| Polsky Center | Accelerator/Incubator | Chicago, IL | 1 |
| Precursor Ventures | Venture Capital | San Francisco, CA | 1 |
| Progression Fund | Venture Capital | Los Angeles, CA | 1 |
| Prudent Capital | Mezzanine | Washington, DC | 1 |
| PSC Environmental Services | Corporation | Houston, TX | 1 |
| RadTech | Accelerator/Incubator | Chevy Chase, MD | 1 |
| Rally Ventures | Venture Capital | Menlo Park, CA | 1 |
| ReadWrite | VC-Backed Company | San Francisco, CA | 1 |
| Reed Dohmen | Angel (individual) | 1 | |
| Repsol Foundation | Accelerator/Incubator | Madrid, Spain | 1 |
| Rev1 Ventures | Venture Capital | Columbus, OH | 1 |
| Revolution Ventures | Venture Capital | Washington, DC | 1 |
| RevTech Labs Capital | Venture Capital | Charlotte, NC | 1 |
| Rezon8 Capital & Advisory Group | Growth/Expansion | Reston, VA | 1 |
| Rick Stratton | Angel (individual) | Chicago, IL | 1 |
| Robert Mikulay | Angel (individual) | Milwaukee, WI | 1 |
| Rocana Ventures Partners | Venture Capital | Miami, FL | 1 |
| Rockefeller Foundation | Impact Investing | New York, NY | 1 |
| Rohan Oza | Angel (individual) | San Francisco, CA | 1 |
| Room & Pillar | Venture Capital | Louisville, KY | 1 |
| Ross Leinweber | Angel (individual) | 1 | |
| Salesforce Ventures | Corporate Venture Capital | San Francisco, CA | 1 |
| Sameer Kaul | Angel (individual) | 1 | |
| Sandalphon Capital | Venture Capital | Chicago, IL | 1 |
| Seamless Ventures | Accelerator/Incubator | Grand Rapids, MI | 1 |
| Sean Beers | Angel (individual) | 1 | |
| Sean Cleary | Angel (individual) | Sharon, WI | 1 |
| Seraph | VC-Backed Company | Milton, GA | 1 |
| Serena Ventures | Venture Capital | Washington, DC | 1 |
| Serena Williams | Angel (individual) | Washington, DC | 1 |
| Service Provider Capital | Venture Capital | CO | 1 |
| Sharmila Mulligan | Angel (individual) | Houston, TX | 1 |
| Silicon Pastures | Angel Group | Milwaukee, WI | 1 |
| Simon School Venture Fund | Venture Capital | Rochester, NY | 1 |
| Small Business Innovation Research and Small Business Technology Transfer Programs | Government | 1 | |
| SoGal Ventures | Venture Capital | New York, NY | 1 |
| Southeast Minnesota Capital Fund | Venture Capital | Rochester, MN | 1 |
| Spero Ventures | Venture Capital | Burlingame, CA | 1 |
| Stage 2 Capital | Venture Capital | New York, NY | 1 |
| Start.coop | Accelerator/Incubator | Manchester, NH | 1 |
| Starta Ventures | Accelerator/Incubator | New York, NY | 1 |
| Startup Milwaukee | Corporation | 1 | |
| State Auto Labs | Venture Capital | Columbus, OH | 1 |
| State of Wisconsin | Government | Madison, WI | 1 |
| Storm Ventures | Venture Capital | Palo Alto, CA | 1 |
| Story Stock Exchange | Accelerator/Incubator | Boulder, CO | 1 |
| Summerfest Tech | Corporation | 1 | |
| Sun Mountain Capital | Venture Capital | Santa Fe, NM | 1 |
| Sunset Ventures (Los Angeles) | Venture Capital | Los Angeles, CA | 1 |
| Surface Ventures | Venture Capital | New York, NY | 1 |
| SWAN Impact Network | Angel Group | Dripping Springs, TX | 1 |
| Swell Partners | Venture Capital | New York, NY | 1 |
| Swingbridge | Other Private Equity | Nashville, TN | 1 |
| SwissAuto | Corporation | 1 | |
| Symphony Alpha Ventures | Corporate Venture Capital | Madison, WI | 1 |
| T-Hub | Accelerator/Incubator | Hyderabad, India | 1 |
| TACK Ventures | Venture Capital | Brooklyn, NY | 1 |
| Target Accelerator | Accelerator/Incubator | Minneapolis, MN | 1 |
| Target Incubator | Accelerator/Incubator | Minneapolis, MN | 1 |
| Ted Kellner | Angel (individual) | Milwaukee, WI | 1 |
| Tenex Investment | Venture Capital | Douglasville, GA | 1 |
| Texas Medical Center | Venture Capital | Houston, TX | 1 |
| The Brandery | Accelerator/Incubator | Cincinnati, OH | 1 |
| The Community Fund | Venture Capital | New York, NY | 1 |
| The Peak Ridge Capital Group | PE/Buyout | Boston, MA | 1 |
| The United States Department of Justice | Government | Washington, DC | 1 |
| The Water Council | Not-For-Profit Venture Capital | Milwaukee, WI | 1 |
| The Workers Lab | Accelerator/Incubator | Oakland, CA | 1 |
| Third Derivative | Accelerator/Incubator | Boulder, CO | 1 |
| Thrive by SVG Ventures | Accelerator/Incubator | Los Gatos, CA | 1 |
| Tim Peterson | Angel (individual) | 1 | |
| Tom Avery | Angel (individual) | 1 | |
| Tommy Thompson | Angel (individual) | Denver, CO | 1 |
| Transparent Collective | Accelerator/Incubator | San Francisco, CA | 1 |
| Trimble Ventures | Corporate Venture Capital | Westminster, CO | 1 |
| Troy Vosseller | Angel (individual) | Madison, WI | 1 |
| TRS Capital | Venture Capital | Fort Walton Beach, FL | 1 |
| Twin Ignition | Accelerator/Incubator | Minneapolis, MN | 1 |
| United States Department of Defense | Government | Washington, DC | 1 |
| United Therapeutics (NAS: UTHR) | Corporation | Silver Spring, MD | 1 |
| University of Chicago Booth School of Business | University | Chicago, IL | 1 |
| University of Rochester Endowment | Limited Partner | Pittsford, NY | 1 |
| University of Wisconsin-Milwaukee Endowment | Limited Partner | Milwaukee, WI | 1 |
| Various (Acquired) | PE-Backed Company | Palo Alto, CA | 1 |
| Venture Investors | Venture Capital | Madison, WI | 1 |
| Veritas Innovations | Accelerator/Incubator | San Francisco, CA | 1 |
| VI Ventures | Venture Capital | Hong Kong, Hong Kong | 1 |
| View Ventures | Venture Capital | Dallas, TX | 1 |
| Wakestream Ventures | Venture Capital | Grand Rapids, MI | 1 |
| WARF Ventures | Venture Capital | Madison, WI | 1 |
| Warhawk Entrepreneurial Fund | Venture Capital | Whitewater, WI | 1 |
| Whitewater Bancorp | Corporation | Whitewater, WI | 1 |
| Wild Wood Ventures | Venture Capital | Denver, CO | 1 |
| William Hickey | Angel (individual) | 1 | |
| Wind River Payments | Corporation | Madison, WI | 1 |
| Winnie Karanja | Angel (individual) | 1 | |
| Wisconsin Alumni Research Foundation | Limited Partner | Madison, WI | 1 |
| Wisconsin Governor’s Business Plan contest | Government | Madison, WI | 1 |
| Wisconsin Technology | Government | Madison, WI | 1 |
| Wisconsin Venture Capital | Venture Capital | Milwaukee, WI | 1 |
| Zerology | Corporation | Middleton, WI | 1 |
| Zimmerman Ventures | Accelerator/Incubator | Greenfield, WI | 1 |