Key facts
- Singletto’s last known valuation is $65.0M (Apr 2025).
- It has raised $13.5M across 1 recorded rounds; the latest was Early Stage VC ($10.5M) in Apr 2025.
- Notable investors include Greater Seattle Partners, Amazon Catalyst, SeaChange Fund, UW CoMotion, University of Washington.
- Singletto has filed 5 Form Ds with the SEC since 2020, most recently Apr 2025 ($10.5M sold to 80 investors).
- Status: Privately Held (backing).
- ·Post-money valuations for all 1 rounds
- ·The complete investor list — 5 names
- ·Watchlist + deal alerts for Singletto
Funding rounds
1 roundsAbout Singletto
Developer of an antimicrobial technology designed for continuous pathogen inactivation. The company's technology applies antimicrobial photodynamic inactivation (aPDI) technology, utilizing protective dyes that absorb and transfer energy to oxygen in the air to create singlet oxygen, which has antimicrobial properties, enabling healthcare, military, industry and consumer sectors to maintain continuous protection against viruses and bacteria through treated materials and fabrics.
- Sector
- Materials and Resources
- HQ
- Seattle, WA, United States
- Founded
- 2020
- Employees
- 8
- Website
- singletto.com/
- Ownership
- Privately Held (backing)
Singletto doesn't have a composite mark yet — a PA Mark is published once enough pricing inputs exist (trade prints, fund marks, round prices). The rest of the record below builds toward it.
Recorded secondary trades
No secondary trades in Singletto shares have been recorded yet. When a print lands — third-party, direct report, or platform — it appears here with structure, source, and price.
Institutional fund marks
No SEC-registered fund has reported a fair-value mark on Singletto in its N-PORT filings yet. We sweep new filings monthly.