Bedrock Ocean, a company specializing in ocean floor mapping, has raised US$25 million in its series A-2 funding round.

The round was led by Primary and Northzone, with participation from Autopilot, Costanoa Ventures, Harmony Partners, Katapult, and Mana Ventures.

The firm has developed autonomous underwater vehicles (AUVs) that can operate independently for up to 12 hours.

The funding is expected to support further development and deployment of Bedrock Ocean’s mapping solutions.

🔗 Source: TechCrunch

🧠 Food for thought

1️⃣ A century of mapping progress: from lead lines to autonomous vehicles

The evolution of seafloor mapping technology reflects the broader trajectory of human technological advancement, moving from manual to autonomous systems.

In the early 20th century, mapping relied on primitive “lead line” measurements, which involved dropping weighted ropes to measure depth and provided extremely limited data points 1.

The 1912 Titanic disaster spurred the development of better mapping technology, leading to the adoption of echo sounders that used sound waves to measure depth more accurately and continuously 2.

The real breakthrough came in the 1970s with the introduction of multibeam sonar systems, which could map wide swaths of seafloor simultaneously rather than just the area directly beneath a ship 1.

Despite these advances, as of 2025, only about 30% of the seafloor has been mapped in detail compared to the nearly complete mapping of the Moon and Mars. This highlights the enormous technical challenges of underwater exploration 3.

Bedrock Ocean’s autonomous underwater vehicles represent the latest evolution in this technological progression, potentially addressing the persistent challenges of cost and environmental impact that have limited comprehensive seafloor mapping.

2️⃣ The Seabed 2030 initiative: racing against time to map the planet’s final frontier

The limited mapping of our oceans has prompted an ambitious global collaboration to comprehensively map Earth’s final frontier within this decade.

The Nippon Foundation-GEBCO Seabed 2030 Project, launched with an $18.5 million initial investment, aims to compile all available bathymetric data into a high-resolution digital model of the entire ocean floor by 2030 4.