Fundz

Bluesonde Technologies reported raising $1 Million in an initial SEC Form D filing, from an offering of $1 Million

PRIVATESep 29, 2026

Amount Raised

$1 Million

$1 Million sold, per SEC Form D (first sale Nov 11, 2025)
$1.74 Million per company press release (Sep 29, 2026)

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.

Quick answer

Bluesonde Technologies raised $1 Million in a Seed round, dated September 29, 2026. Bluesonde Technologies is based in Portland, Maine, United States.

How much did Bluesonde Technologies raise?
Bluesonde Technologies raised $1 Million in a Seed round on September 29, 2026.
What does Bluesonde Technologies do?
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.
Where is Bluesonde Technologies based and how big is it?
Bluesonde Technologies is based in Portland, Maine, United States. Fundz records about 4 employees.

Source: Fundz verified event record.

Who else raised in Water and Water Purification around the same time

Companies in the same sectors as Bluesonde Technologies that raised within 45 days of this round, from Fundz verified event records.

  • Cadiz raised $21M (Post-IPO Equity) on October 29, 2026.
  • Rainmaker Technology Corporation raised $100M (Series B) on September 21, 2026.
  • VVater raised an undisclosed amount (Corporate Round) on September 7, 2026.
  • Heartland Water Technology raised $1.5M on September 1, 2026.
  • Seamoretech raised $1.2M (Seed) on November 2, 2026.
  • NoorNation raised $1.1M (Seed) on October 28, 2026.

Who to call at Bluesonde Technologies, and when

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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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