As of 23 Oct 2026, Bluesonde Technologies has raised $1.7M across 1 verified round on record; latest: $1.74 million pre-seed round led by Corsair Venture Partners, announced 29 Sep 2026.
A Portland water monitoring technology startup
bluesonde.comLinkedInPortland, MaineData and analyticsFounded 2024
2 sources · checked 24 times, last 3h ago
The company page states $1.74 million, while its linked media item says $1.3M; the company’s own announcement is preferred.
| Round | Amount | Announced | Lead | Buzz |
|---|---|---|---|---|
| Pre-seed | $1.7M $1.74M financing total | 2026-09-29 | Corsair Venture Partners | No recent discussion |
2 sources · checked 24 times, last 3h ago [ VERIFIED · CORRECTED ] read against 2 sources
The company page states $1.74 million, while its linked media item says $1.3M; the company’s own announcement is preferred. | ||||
Bluesonde builds compact, connected buoys and a real-time water-data platform for researchers, aquaculture operators, ports, water managers, and other organizations that need continuous water-quality information.
Traditional water monitoring can depend on expensive, difficult-to-deploy equipment and periodic manual sampling, while Bluesonde says its compact, low-maintenance buoys stream continuous real-time data and have been deployed by more than 40 systems in 2026 so far. The newly announced $1.74 million package—$1.3 million in pre-seed financing plus an MTI loan and NOAA SBIR award—is intended to expand production and deployments, advance the technology, add hires, and build the software infrastructure for larger monitoring networks.
Also named as backers in company research: Maine Technology Institute, NOAA Small Business Innovation Research (SBIR) program