40 investors have funded 15 Life Sciences companies head-officed in Tucson, across 49 rounds (Oct 2007 – Aug 2025). They are ranked by how many Tucson companies in this market they have actually backed.
"In Tucson" describes the companies, not the investor: most of the money in any city comes from somewhere else, and the Where the money comes from section below shows exactly where it came from here.
Ranked by companies backed in this market and city, then by round count. "Led" counts rounds recorded with this investor as lead.
| # | Investor | Based in | Stages here | Companies | Rounds | Led | Latest | Portfolio total |
|---|---|---|---|---|---|---|---|---|
| 1 | Desert Angels | Tucson, United States | Series ASeed | 3 | 4 | 3 | Aug 2025 | 24 |
| 2 | UAVenture Capital Fund | Tucson, United States | Seed | 3 | 4 | 1 | Nov 2019 | 9 |
| 3 | Solstice Capital | Salem, United States | Series DSeries C | 1 | 2 | — | Feb 2011 | 15 |
| 4 | Salveo Capital | Northbrook, United States | Series ASeries B | 1 | 2 | — | Sep 2019 | 12 |
| 5 | Altitude Investment Management | Miami, United States | Series ASeries B | 1 | 2 | — | Sep 2019 | 9 |
| 6 | Novo Holdings | Hellerup, Denmark | Series D | 1 | 1 | 1 | Feb 2011 | 286 |
| 7 | RA Capital Management | Boston, United States | Series B | 1 | 1 | — | May 2015 | 317 |
| 8 | Alexandria | Pasadena, United States | Series B | 1 | 1 | — | May 2015 | 231 |
| 9 | Point Nine | Berlin, Germany | Post-IPO | 1 | 1 | — | Jan 2018 | 169 |
| 10 | Alven | Paris, France | Post-IPO | 1 | 1 | — | Jan 2018 | 142 |
| 11 | SR One | Redwood City, United States | Series D | 1 | 1 | 1 | Jun 2011 | 117 |
| 12 | Tech Coast Angels | Los Angeles, United States | Seed | 1 | 1 | — | May 2023 | 160 |
| 13 | Phoenix Venture Partners | San Mateo, United States | Series A | 1 | 1 | — | Oct 2015 | 33 |
| 14 | Pasadena Angels | Altadena, United States | Series A | 1 | 1 | — | Aug 2025 | 39 |
| 15 | Highway 12 Ventures | Boise, United States | Series D | 1 | 1 | — | Jun 2009 | 18 |
| 16 | Athyrium Capital Management | New York City, United States | Series E+ | 1 | 1 | 1 | Dec 2013 | 29 |
| 17 | Fletcher Spaght | Boston, United States | Series D | 1 | 1 | 1 | Feb 2011 | 18 |
| 18 | Viva BioInnovator | Shanghai, China | Series A | 1 | 1 | 1 | Dec 2023 | 19 |
| 19 | Merck | Darmstadt, Germany | Series C | 1 | 1 | 1 | Oct 2007 | 20 |
| 20 | Arizona Tech Investors | Phoenix, United States | Series A | 1 | 1 | — | Aug 2025 | 17 |
| 21 | Pipeline Angels | New York City, United States | Seed | 1 | 1 | — | Mar 2016 | 14 |
| 22 | Entourage Effect Capital | Dallas, United States | Series B | 1 | 1 | 1 | Sep 2019 | 16 |
| 23 | Arcturus Capital | Pasadena, United States | Series C | 1 | 1 | — | Oct 2007 | 9 |
| 24 | Delta Electronics | Taipei, Taiwan | Series E+ | 1 | 1 | 1 | Apr 2015 | 12 |
| 25 | HOYA | Tokyo, Japan | Series A | 1 | 1 | 1 | Mar 2015 | 11 |
| 26 | Central Texas Angel Network | Austin, United States | Series A | 1 | 1 | — | Aug 2025 | 10 |
| 27 | Point Financial | Phoenix, United States | Series A | 1 | 1 | — | Nov 2012 | 9 |
| 28 | Flatiron Venture Partners | New York City, United States | Series B | 1 | 1 | — | Sep 2019 | 6 |
| 29 | Angel Star Ventures | Chadds Ford, United States | Series A | 1 | 1 | 1 | Dec 2023 | 6 |
| 30 | SWK Holdings | Dallas, United States | Series E+ | 1 | 1 | 1 | Dec 2013 | 5 |
| 31 | Qiagen | Hilden, Germany | Post-IPO | 1 | 1 | — | Jun 2020 | 7 |
| 32 | TCA Venture Group | Irvine, United States | Series A | 1 | 1 | — | Dec 2023 | 5 |
| 33 | Brooks Hill Partners | Waltham, United States | Seed | 1 | 1 | — | 3 | |
| 34 | Baylor Angel Network | New York City, United States | Series A | 1 | 1 | — | Aug 2025 | 3 |
| 35 | CANCER FUND | Phoenix, United States | Series A | 1 | 1 | 1 | Dec 2023 | 3 |
| 36 | Canopy Ventures | Boulder, United States | Series A | 1 | 1 | — | Jul 2018 | 2 |
| 37 | Youweiwei Intelligent Technology | Chengdu, China | Series A | 1 | 1 | 1 | Sep 2023 | 1 |
| 38 | Sucampo | Rockville, United States | Series B | 1 | 1 | 1 | Sep 2017 | 1 |
| 39 | Valley Ventures Accelerator | Fresno, United States | Series C | 1 | 1 | — | Oct 2007 | 1 |
| 40 | Arcadian Investment Partners | New York City, United States | Series B | 1 | 1 | — | Sep 2019 | 1 |
Head office of the investors on this page.
Rounds by stage — where in a company's life this money arrives.
Total disclosed size of each round, not one investor's share.
How active this market has been.
Life Sciences companies head-officed in Tucson that took money from these investors.
| Company | Backers | Rounds | Disclosed | Latest round |
|---|---|---|---|---|
| HTG Molecular Diagnostics htgmolecular.com |
10 | 11 | $95M | Post-IPO Jun 2020 |
| PathogenDX pathogendx.com |
6 | 8 | $47.7M | Series B Sep 2019 |
| Reglagene reglagene.com |
6 | 6 | $28.7M | Series A Dec 2023 |
| Delta Development Team deltadevteam.com |
6 | 7 | $1.9M | Series A Aug 2025 |
| SynCardia syncardia.com |
4 | 4 | $38.3M | Series E+ Apr 2015 |
| Calimmune calimmune.com |
2 | 2 | $31.7M | Series B May 2015 |
| Regulonix regulonix.com |
2 | 3 | $4M | Seed Jul 2018 |
| Cancer Prevention Pharmaceuticals canprevent.com |
1 | 1 | $9.5M | Series B Sep 2017 |
| Sentinel Monitoring Systems sentinelmonitors.com |
1 | 1 | $3.5M | Series A Oct 2015 |
| StimAire stimaire.com |
1 | 1 | $1.6M | Seed Nov 2019 |
| Salutaris Medical Devices salutarismd.com |
1 | 1 | $1.2M | Series A Mar 2015 |
| Ventana ventana.com |
1 | 1 | — | Series A Nov 2012 |
| MediCarbone medicarbone.com |
1 | 1 | — | Seed Sep 2019 |
| MSDx msdx.co |
1 | 1 | — | Seed Mar 2016 |
| Macula Vision Systems macula-vision.com |
1 | 1 | — |
| Date | Investor | Company | Stage | Round size |
|---|---|---|---|---|
| Aug 2025 | Arizona Tech Investors | Delta Development Team | Series A | — |
| Aug 2025 | Pasadena Angels | Delta Development Team | Series A | — |
| Aug 2025 | Desert Angels | Delta Development Team | Series A | — |
| Aug 2025 | Central Texas Angel Network | Delta Development Team | Series A | — |
| Aug 2025 | Baylor Angel Network | Delta Development Team | Series A | — |
| Dec 2023 | Desert AngelsLED | Reglagene | Series A | $5.4M |
| Dec 2023 | CANCER FUNDLED | Reglagene | Series A | $5.4M |
| Dec 2023 | Viva BioInnovatorLED | Reglagene | Series A | $5.4M |
| Dec 2023 | Angel Star VenturesLED | Reglagene | Series A | $5.4M |
| Dec 2023 | TCA Venture Group | Reglagene | Series A | $5.4M |
| Sep 2023 | Desert AngelsLED | Delta Development Team | Series A | $960K |
| Sep 2023 | Youweiwei Intelligent TechnologyLED | Delta Development Team | Series A | $960K |
| May 2023 | Tech Coast Angels | Reglagene | Seed | $1.7M |
| Jun 2020 | Qiagen | HTG Molecular Diagnostics | Post-IPO | $3M |
| Nov 2019 | UAVenture Capital FundLED | StimAire | Seed | $1.6M |
| Sep 2019 | Altitude Investment Management | PathogenDX | Series B | $7.5M |
| Sep 2019 | Flatiron Venture Partners | PathogenDX | Series B | $7.5M |
| Sep 2019 | Salveo Capital | PathogenDX | Series B | $7.5M |
| Sep 2019 | Arcadian Investment Partners | PathogenDX | Series B | $7.5M |
| Sep 2019 | Entourage Effect CapitalLED | PathogenDX | Series B | $7.5M |
Life Sciences investors in other cities