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Greenhouse Capital Partner is a venture capital firm that was founded in 2006 and is based in Sausalito, California. The firm selectively makes equity investments into life science companies in seed stage and series A financing round, but it also provides growth equity to highly capital efficient companies that can achieve cash flow break-even within two years. The typical investment size ranges from $0.25 million to $2 million.The firm focuses on investments in US based companies.

Small biotechnology companies are developing half of all future medicines, some of which may not reach patients due to lack of funding from traditional investors.

Although health-related charities received more than $31B in contributions in 2013, many of the charities which support research do not work with for-profit biotech companies. They predominantly fund academic and non-profit institutions which typically conduct early research and discover around 10% of new medicines (for-profit companies discover the remaining 90%).

Impatient is a new kind of health-related charity. We will only fund medical trials with small biotech companies.  

Our scientific advisors will select promising, unfunded, medical treatments. You choose which treatment to support and 100% of your donation is spent on testing.

If the treatment is successful, 100% of the future royalty that Impatient receives from the biotech company will support access to new medicines for people who cannot afford them.  

Joslin Diabetes Center is a foundation based in Boston, Massachusetts that was founded in 1898, and is the world's largest diabetes and clinical care organization.

Life Science Angels Inc was founded in 2004 and is based in Sunnyvale CA. The group makes early-stage equity investments in a wide range of life science companies. Life Science Angels invests primarily in California but is open to investing out of state provided a round is being syndicated with a local angel group. Life Science Angels does not rule out investing outside the USA but has yet to do so. The group invests as individuals and allocation sizes are therefore highly varied but are usually of about $2-$6, Life Science Angels usually invests in rounds seeking $3 million or less. The group is interested in syndicating rounds with other angel groups.