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Tosk is a biopharmaceutical company specializing in cancer treatments. It develops the Side Effect Fly technology using drosophila as a model to screen compounds for their potential to prevent the adverse effects of existing cancer therapies. The company also offers the Genetically Modified Fly used to insert human genes into drosophila for use in drug screening.

HQMountain View, CA, US


Tosk is headquartered in
Mountain View, United States

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Employees (est.) (Jan 2021)14
Cybersecurity ratingBMore

Key People/Management at Tosk

Brian Frenzel

Brian Frenzel

President, CEO and Director
Harold Crow

Harold Crow

William Garland

William Garland

Executive Vice President, Research and Development
Charles Garvin

Charles Garvin

Stephen Yanofsky

Stephen Yanofsky

Vice President Research, Biology
Solomon Ungashe

Solomon Ungashe

Vice President Research, Medicinal Chemistry
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Tosk Office Locations

Tosk has an office in Mountain View
Mountain View, CA, US (HQ)
2672 Bayshore Pkwy #507
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Tosk Financials and Metrics

Summary Metrics

Founding Date


Tosk total Funding

$8.6 m

Tosk latest funding size

$3.10 m

Time since last funding

5 years ago
Tosk's latest funding round in March 2016 was reported to be $3.1 m. In total, Tosk has raised $8.6 m
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Tosk Cybersecurity Score

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Tosk Online and Social Media Presence

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Tosk Frequently Asked Questions

  • When was Tosk founded?

    Tosk was founded in 1998.

  • Who are Tosk key executives?

    Tosk's key executives are Brian Frenzel, Harold Crow and William Garland.

  • How many employees does Tosk have?

    Tosk has 14 employees.

  • Who are Tosk competitors?

    Competitors of Tosk include BellBrook Labs, TRON and Jasco Pharmaceuticals.

  • Where is Tosk headquarters?

    Tosk headquarters is located at 2672 Bayshore Pkwy #507, Mountain View.

  • Where are Tosk offices?

    Tosk has an office in Mountain View.

  • How many offices does Tosk have?

    Tosk has 1 office.