# PolySign

PolySign is an Asset Manager based in Oakland, United States.

## Overview

- **Organization type:** Asset Manager
- **Headquarters:** Oakland, United States
- **Region:** North America
- **Address:** Oakland, CA, United States
- **Assets under management:** Undisclosed
- **Website:** polysign.io
- **LinkedIn:** https://www.linkedin.com/company/polysign

## Regulatory record

- **Reports private funds:** No

## About

PolySign is a US-based company founded in 2017. It offers institutional-grade infrastructure for investors. The firm has secured $127.4 million in total funding.

## Sectors

- Blockchain Infrastructure
- Digital Assets
- FinTech

## People

- Arthur Britto — Co-founder
- David Schwartz — Co-founder and Chief Cryptographer
- Jack McDonald — CEO

## Questions

### Who runs investment decisions at PolySign?

CEO Jack McDonald, who previously led Conifer Financial Services, oversees the firm's strategy. Co-founders Arthur Britto and David Schwartz provide technical direction. No CIO is publicly named.

### How does PolySign source proprietary deal flow?

PolySign builds its own technology rather than investing in external companies. Its deal flow is not disclosed; the firm positions itself as an infrastructure provider, not an investor.

### Does PolySign participate in fund commitments or only direct deals?

The firm's disclosed activities focus on building its own custody and blockchain products. No fund commitments or direct investments are reported.

### What investment stages does PolySign typically target?

PolySign does not invest in stages; it builds infrastructure for institutional digital asset custody and transactions.

### Which sectors does PolySign explicitly avoid?

The firm does not disclose sectors it avoids. Its disclosed focus is exclusively on digital asset infrastructure for financial institutions.

### How is PolySign related to Ripple?

Co-founders Arthur Britto and David Schwartz also co-founded Ripple and co-designed the XRP Ledger. PolySign is a separate company leveraging their blockchain expertise (per firm website).

## Related profiles

- [SaaSOptics](https://altss.com/profile/saasoptics)
- [Grain Intelligence](https://altss.com/profile/grain-intelligence)

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Last updated: 2026-06-03T20:00:00.000Z

Canonical page: https://altss.com/profile/polysign

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