Venture Capital

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Elm Street Ventures

Elm Street Ventures: Yale-anchored venture fund that converts university IP into life-science and clean-tech startups from New Haven.

Elm Street Ventures logo

Elm Street Ventures

Elm Street Ventures operates as a Yale-focused venture fund based in New Haven, Connecticut, where it has built its model around the university's scientific, engineering, and clinical research. The firm was founded to catalyze company formation from Yale's intellectual property, but its scope extends to the University of Connecticut, Jackson Labs, and Connecticut Innovations. More than half of the portfolio licenses Yale technology. The firm targets early-stage investments in life sciences — including therapeutics, medical devices, diagnostics, and research tools — alongside clean technology with an emphasis on green chemistry, and information technology. Confirmed portfolio companies include Arvinas, a protein-degradation oncology platform; P2 Science, a green chemistry firm; Allyx Therapeutics, targeting neurodegeneration; Halda Therapeutics with a RIPTAC mechanism; and Cybrexa, which exploits low-pH tumor microenvironments. Elm Street initially deploys checks from several hundred thousand dollars to over $1 million, reserves follow-on capital, and builds institutional syndicates early in each company's life. Yale's endowment serves as the fund's largest investor, giving Elm Street a capital base and a structural pipeline unmatched by generalist seed funds. The firm is embedded in New Haven's life-science cluster, where affordable lab space, proximity to research hospitals, and a skilled local workforce support company building. The team typically works alongside scientists and entrepreneurs before and after investing, helping to develop business strategy, recruit management, secure laboratory financing, and establish syndicate partners. Elm Street's structural differentiator is its single-campus anchor: no other venture firm has Yale as its largest LP while systematically converting Yale-originated IP into new companies. That relationship creates both proprietary sourcing and a natural first-look advantage that makes the fund difficult to replicate outside New Haven.

General information

Firm type

Venture Capital

Year founded

AUM

Undisclosed

Location

Region

North America

Country

United States

City

New Haven

Corporate office

New Haven, CT, United States

Sector focus

Life SciencesClean TechnologyDigital HealthHealthcare ServicesEnterprise Software

Frequently asked questions

What is Elm Street Ventures' relationship to Yale University?

Yale is Elm Street's largest investor through its endowment, and the fund predominantly backs companies built on Yale-licensed intellectual property. More than half of the portfolio holds Yale licenses, and the firm maintains strong ties with Yale's scientific, engineering, and clinical faculty.

How does Elm Street source its deals?

Elm Street's pipeline originates from deep relationships across Yale's entrepreneurial ecosystem, including faculty labs, the university's technology transfer office, and affiliated clinical networks. The firm also draws on connections to the University of Connecticut, Jackson Labs, and Connecticut Innovations for deal flow beyond Yale.

What is Elm Street's typical investment size?

Initial investments range from several hundred thousand dollars to $1 million or more, with substantial reserves for follow-on rounds. For example, the firm might invest $250,000 in proof-of-concept work, then $1 million in a Series A, with additional capital held for later rounds alongside institutional syndicate partners.

Does Elm Street exclusively invest in Yale spinouts?

Although Yale-originated companies form the core of its portfolio, Elm Street's mandate extends to other Connecticut institutions and occasionally beyond. The firm's strategy document notes that there is no requirement for companies to remain in New Haven, though that remains its focus.

Which sectors does Elm Street explicitly back?

The firm invests across life sciences — therapeutics, medical devices, diagnostics, research tools, digital health — clean technology with an emphasis on green chemistry, and select information technology. The portfolio remains concentrated in deep-science and university-originated IP.

How does Elm Street support companies post-investment?

The team typically engages before and after writing a check, helping founders develop business strategy, recruit management, implement partnering plans, secure laboratory and equipment financing, and build institutional syndicates around each company.

Is Elm Street structured as a family office or a traditional venture firm?

Elm Street operates as a third-party venture capital firm anchored by Yale's endowment as its cornerstone LP. It is not a single-family office or a multi-family office; it manages outside institutional capital through a venture fund structure.

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