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Portland water-monitoring startup Bluesonde Technologies secures $1.74M in expansion funding for production scaling and hiring.

PRIVATESep 29, 2026

Amount Raised

$1.74 Million

Round Type

Seed

PortlandWaterWater Purification

Description

Bluesonde Technologies, a Portland-based water-monitoring startup, has raised $1.74 million in expansion funding to accelerate production and deployments. The company manufactures compact buoys equipped with sensors to continuously collect water-quality data and stream it to a cloud-based platform. Led by CEO Andrew Thompson, Bluesonde has deployed over 40 monitoring systems across Maine and other states this year, with plans to deploy 200 systems in the coming year. The funding will support expanded production, new hires, and a potential relocation to larger facilities.

Company Information

Company

Bluesonde Technologies

Location

Portland, Maine, United States

About

Bluesonde Technologies is a Portland-based water monitoring startup that develops compact, low-maintenance buoys equipped with integrated sensors, connectivity modules, and anti-fouling technology. The system continuously collects water-quality data and streams it to a cloud-based platform, enabling real-time monitoring of aquatic conditions. The company aims to make continuous water monitoring simple and affordable at scale, serving applications in shellfish aquaculture, environmental monitoring, water utilities, and beach safety.

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Bluesonde Technologies raised. Fundz records a round at a median of 3.6 minutes from the SEC filing, with the decision-maker attached.

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Fundz is a real-time business intelligence platform powered by agentic AI that proactively delivers personalized daily signals, including funding rounds, executive changes, M&A activity, 13F institutional filings, SEC 8-K events, investor activity, and website modifications, based on each user's watchlist and ICP. A trusted data source at firms such as BlackRock, Oracle, Kleiner Perkins, LinkedIn, HubSpot, and Cloudflare, Fundz democratizes the institutional-grade intelligence that previously required a PitchBook or Bloomberg terminal. Features include FundzWatch™ for automated website change detection, Daily Briefing for AI-powered daily briefings, and unified cross-signal alerts across 281,000+ organizations. Developers and data teams can access these signals programmatically via the Fundz Funding Data API, with transparent published pricing.