About QB3
QB3, an accelerator and incubator program founded in 2000, is based in San Francisco, United States. With a presence in 2 countries, it has supported around 46 startups in sectors like Life Sciences, High Tech. As of Aug 2026, QB3 has witnessed 2 portfolio exits. Most notable companies in
its portfolio include Invitae, Juvena Therapeutics and Rodan + Fields. The program is backed by a team of 10 people who primarily support Seed startups based in United States. Its latest investment was a Undisclosed Seed round in Inhalon Biopharma on Nov 08, 2019.
Key Metrics
Founded Year
2000
Location
San Francisco, United States
Portfolio Companies
Sectors of Investment
Stages of Investment
Seed & Series A
Locations of Investment
QB3's List of Top Investments
QB3 has a portfolio of 46 companies. Their most notable investmentis in Inhalon BiopharmaTheir portfolio spans across United States and Australia. They have invested in Life Sciences, High Tech, HealthTech and 7 other sectors, across stages such as Seed, Series A stages. Here is the list of top investments by QB3:1. Invitae
Provider of home-based genetic tests for individuals. The platform enables users to request a test online with the help of doctors to collect saliva samples to detect genetic diseases. Users can get results online and share them with doctors.
Key facts about Invitae
- Founded Year: 2010
- Location: San Francisco (United States)
- Annual Revenue: $500M - $1B as on Dec 31, 2022
- Stage: Public
- Total Funding till date: $190M
- Employee Count: 674 as on Jul 31, 2026
- Investors: Scheuermann Investment, Perceptive Advisors and 22 Others
- Latest Funding Round: Post IPO, Apr 05, 2021, $*****
- Highlight: Public
Juvena Therapeutics is engaged in the development of protein-based therapeutics that promote tissue generation in the elderly. The company has developed a discovery platform for screening restored muscle function which can be developed to other tissue types. The company has developed a protein cocktail which can improve the ability of aged muscle to heal and regenerate and also to look youthful and active.
Key facts about Juvena Therapeutics
- Founded Year: 2017
- Location: San Mateo (United States)
- Valuation: $*****
- Stage: Series B
- Total Funding till date: $86.3M
- Employee Count: 41 as on Jul 31, 2026
- Investors: Mubadala, Felicis Ventures and 23 Others
- Latest Funding Round: Series B, Jun 27, 2025, $*****
- Highlight: Editors' Pick
Dermatologist-created skincare and haircare products for various skin and hair concerns. They offer a range of regimens, serums, moisturizers, cleansers, and tools targeting anti-aging, acne, dark spots, sensitivity, and other skin issues. Haircare products address volume, smoothness, moisture, and oily scalp concerns. The company provides options for automatic renewal and subscription. They offer best sellers and derm-developed favorites. The website includes features like search, sign-in, cart, and product quizzes. They also provide help center, shipping information, and promotional terms.
Key facts about Rodan + Fields
- Founded Year: 2002
- Location: San Francisco (United States)
- Stage: Late Stage
- Employee Count: 17,583 as on Jul 31, 2026
- Investors: QB3, TPG and 1 Other
- Latest Funding Round: PE, May 03, 2018, $*****
4. ImpriMed
Provider of precision medicines for veterinary cancer. The company offers different drug combinations suited for a certain cancer pet patient. The company biopsies the live cancer cells for drug responses before treatment. Based on these responses, the company uses its data-driven technology to help veterinary oncologists to fix a personalized medicinal regime for an individual.
Key facts about ImpriMed
- Founded Year: 2017
- Location: Palo Alto (United States)
- Stage: Series A
- Total Funding till date: $34.9M
- Employee Count: 45 as on Jul 31, 2026
- Investors: SK Telecom, StartX and 26 Others
- Latest Funding Round: Series A, Nov 06, 2023, $*****
- Highlight: Editors' Pick
5. Zeto
ZETO Inc is a provider of dry electrode EEG system for clinical use. It has developed a device that is easy to use and comfortable to wear, it uses dry electrodes and no wires. The device improves the patient and technician experience. The electrode is spring-loaded and can be precisely moved to the 10-20 position, with no need for any measurement. The electrodes have bristle shapes to naturally work its way through the hair of any type. Features include rechargeable Li-ion battery, analog to digital converter, common-mode rejection ratio, and others.
Key facts about Zeto
- Founded Year: 2014
- Location: Santa Clara (United States)
- Stage: Series B
- Total Funding till date: $38.3M
- Employee Count: 73 as on May 31, 2026
- Investors: Aphelion Capital, ShangBay Capital and 10 Others
- Latest Funding Round: Series B, Jan 08, 2025, $*****
- Highlight: Editors' Pick
QB3's Year-on-Year Investment Trends
QB3 has invested in 46 companies over the last 11 years, with an average of 0 new investment annually in the last 10 years. Its most recent first time investment was in Inhalon Biopharma.QB3's Investments by Stage
QB3 has made 3 investments in Seed stage and 1 investment in Series A stage with an average round size of $15M.Stage of entry | No. of Investments |
|---|---|
Seed | 3 |
Series A | 1 |
Note: We have considered here, only first round of investments
QB3's Investments by Sector
QB3 has a diverse portfolio, with companies operating in the Life Sciences, AR VR - Industry Applications, HealthTech, High Tech and Internet of Things - Industry Applications. Notably, it has invested in 42 Tech companies, 37 Enterprise (B2B) companies, 13 Software companies and at least 12 companies focusing on Tech hardware.Sector | No. of Investments |
|---|---|
Life Sciences | 4 |
AR VR - Industry Applications | 1 |
HealthTech | 1 |
High Tech | 1 |
Internet of Things - Industry Applications | 1 |
Note: We have considered here, only first round of investments
QB3's Investments by Geography
QB3 has made most investments in United States (4).QB3's recent investments
QB3 has not made any investment in 2026 so far.Here are the most recent investments by QB3:
Filter this listDate | Company | Location | Round Details | Round Amount | Co-Investors |
|---|---|---|---|---|---|
Nov 08, 2019 | United States | Seed | 6079 | - | |
Aug 23, 2017 | United States | Seed | 5462 | - | |
2015 | United States | Seed | 5844 | - | |
Jan 05, 2015 | United States | Series A | 6363 | [+6] |
IPOs and Publicly Listed companies in QB3's Portfolio
1 of QB3's portfolio company became public - Invitae. It got listed on the New York Stock Exchange (NYSE), in Feb 2015 at marketcap of $493MHere are QB3's portfolio companies that went public:
Company | IPO Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Feb 13, 2015 | - | - | 5970 |
Acquired companies in QB3's Portfolio
1 company from QB3's portfolio has been acquired. The most recent acquisition was Emme in Feb 2022 by Simple Health for $*****.Here are QB3's portfolio companies that got acquired most recently:
Company | Acquisition Date | First Invested on | First Round of Investment | Round Size |
|---|---|---|---|---|
Feb 16, 2022 | - | - | 2110 |
Team profile of QB3
QB3 has a team of 10 members including 7 Partners and 2 Principals located in United States. QB3's team does not sit on the board of any company as of now.Here is a list of all team members in QB3:
Name | Designation | Location | Board Memberships | Contact Details |
|---|---|---|---|---|
Partner | - | - | - | |
Partner | San Francisco | - | - | |
Partner | Berkeley | - | ||
Partner | Berkeley | - | - | |
Partner | Berkeley | - | - | |
Partner | San Francisco | - | - | |
Partner | Santa Cruz | - | - | |
Principal | San Francisco | - | - | |
Principal | San Francisco | - | - |
Co-investors of QB3
Over the past 11 years, 21 investors have co-invested in QB3's portfolio companies. This includes funds and angels.
- Invested before QB3: HHS, Plug and Play Tech Center and 2 others have invested in rounds before QB3. There is 1 company where HHS has invested before QB3 and 1 company where Plug and Play Tech Center has invested before QB3.
- Top Co-investors of QB3: 7 investors entered a company along with QB3. These include investors like Lilly Ventures (1 company).
- Invested after QB3: A total of 10 investors have invested in QB3's portfolio after their investments. Top Investors include Cell Innovation Partners (1 company) and HEDA Ventures (1 company).
Recent News related to QB3
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