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Nava Ventures

Nava Ventures is an early-stage venture capital firm founded by Freddie MartignettiFreddie MartignettiFreddie Martignetti is a venture capitalist and the founder of Nava Ventures. A Harvard graduate with an MBA from the university, he founded Suffolk Equity Partners in 2011 and later worked at Highland Capital Partners; in 2025 he joined the board of the investing app Grifin.Open the full entry. It has led Series A rounds for companies including Knot, Caden, Grifin and Plato.

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Key facts

August 2023Leading Series A Rounds for Knot and Caden

On August 3, 2023, the card-on-file management platform Knot announced a $10 million Series A led by Nava Ventures, with backers including Amex Ventures, to expand its merchant support.⁠[1]

On August 16, New York data intelligence company Caden announced a $15 million Series A led by Nava Ventures, with participation from Jerry Yang’s AME Cloud Ventures, Streamlined Ventures and Montage Ventures, among others.⁠[2]

June 18, 2025Leading Grifin’s Series A

Grifin, an app that links investing to everyday spending, announced an $11 million Series A led by Nava Ventures, with TTV, Draper Associates and Gaingels among the participants.⁠[3]

October 2026Leading Plato’s Round

Nava Ventures led PlatoPlatoPlato develops simulated work environments for training and evaluating AI agents. It builds working environments around the software, data and workflows of real jobs and publishes benchmarks for assessing model capabilities.Open the full entry’s $16 million Series A.⁠[4]

Firm: Focus and Portfolio

Nava Ventures describes itself as “A modern, early stage investment firm founded on more than a decade of experience in venture capital,” seeking companies that create new markets, change industries and have a positive impact.⁠[5]

As of November 2026, its website portfolio page listed 19 companies, including Plato, Knot API, Grifin, GrowthBook, Hydrolix, AeroVect and Open Loop.⁠[6]

Sources

  1. Card-on-File Management Platform Knot Raises $10 Million to Expand Merchant Support (opens in a new window)
  2. Caden Raises $15 Million Series A (opens in a new window)
  3. Grifin Inks $11M Series A (opens in a new window)
  4. Plato raises $16M to build fake offices where AI agents learn real jobs (opens in a new window)
  5. Nava Ventures (opens in a new window)
  6. Portfolio | Nava Ventures (opens in a new window)