---
title: "From Science To Sea: How Hatch Blue Picks Start-ups That Might Actually Scale"
description: Seven ocean technology start-ups in Hatch Blue’s Crest Accelerator use AI and sustainable solutions to address aquaculture, energy and climate challenges
author: Darie Nani (Editor-in-Chief)
date: 2025-09-10T15:45:48.000Z
updated: 2026-02-26T18:02:02.976Z
canonical: https://www.sovereignmagazine.com/article/from-science-to-sea-how-hatch-blue-picks-start-ups-that-might-actually-scale
image: https://cdn.nanimediahouse.com/7b_9chdkgfg.jpg
categories: Science & Tech
content_type: Feature
region: Hawaii
publication: Sovereign Magazine
---

Seven start-ups with radically different approaches to ocean technology arrived in Hawaii this week, each claiming they can solve problems that have stumped bigger companies for years. One promises to detect shrimp diseases through AI before farmers can spot them. Another says it can pull carbon from the atmosphere using water-based systems that cost less than current methods. A third claims it can replace expensive fishmeal with hemp-based alternatives.

These companies are part of Hatch Blue’s latest Crest Accelerator cohort, a programme that has backed 66 companies and helped them raise over $150 million in follow-on funding. The accelerator’s track record matters because ocean technology has a reputation for big promises and limited commercial success.

## How Crest Actually Works

Hatch Blue’s Crest Accelerator isn’t just another mentorship programme. Companies receive between $150,000 and $300,000 in initial investment, but the real value lies in what Caitriona Kelleher, Hatch Blue’s early stage investments director, calls ‘specific deliverables’. These include network access, intellectual property development, market assessments, [competitive landscape analysis](https://www.sovereignmagazine.com/article/trial-grants-on-farm-data-for-ag-input-makers-winners-and-runners-up-alike), life cycle assessments and marketing support.

The companies spend their first week at Hawaii’s Ocean Science and Technology facility before rotating through Norway, Singapore and Vietnam. This global exposure matters because ocean tech accelerators that provide international market access tend to produce better commercial outcomes than those focused solely on domestic markets.

## The Selection Process

Hatch Blue selected these seven companies based on four criteria: team strength, market opportunity, technical differentiation and potential sector impact. The range of technologies shows how diverse the commercial challenges are in ocean technology.

Nernst Electric from the USA and Ireland has developed 3D-printed ceramic membranes for on-farm oxygen production. The [aquaculture oxygenator market](https://www.sciencedirect.com/science/article/abs/pii/S0959652623042397) is expected to grow from $1.4 billion in 2023 to $2.7 billion by 2032, driven by demand for higher stocking densities and energy-efficient systems.

FP Aqua from Denmark and Norway focuses on AI-powered monitoring of phytoplankton and zooplankton, enabling early detection of sea lice larvae, algal blooms and jellyfish. This addresses a fundamental problem in fish farming where manual monitoring often misses critical changes in water conditions.

Hadl, operating between the USA and Indonesia, uses AI image recognition to detect plankton and pathogens in shrimp ponds. This technology targets a market where [disease-related losses](https://www.globalgrowthinsights.com/market-reports/shrimp-disease-diagnostics-market-113774) exceed $6 billion globally, with viral diseases causing mortality rates of 60-100% in affected farms.

## Companies With Revenue Models

Some of these companies already have operational revenue models. MarinElixirs runs a ‘seed-and-buy-back’ operation across coastal India, producing seaweed-based biostimulants and animal feed ingredients. This matters because the [global seaweed market](https://www.worldbank.org/en/news/press-release/2023/08/16/new-farmed-seaweed-markets-could-reach-11-8-billion-by-2030) could reach $11.8 billion by 2030, with biostimulants representing a significant portion of that growth.

Vycarb has moved beyond prototypes to [real-world pilots](https://www.sovereignmagazine.com/article/hummink-s-fountain-pen-technology-tackles-the-16-billion-problem-display-makers-can-see-but-c) of its water-based carbon capture system. The company claims to offer permanent CO2 sequestration at lower costs than current methods, targeting a [carbon capture market](https://www.sovereignmagazine.com/article/marine-based-carbon-removal-drives-demand-for-advanced-monitoring-technologies) projected to grow from $3.54 billion in 2024 to $14.51 billion by 2032.

Others still face significant validation challenges. Seacrop’s electrostatic fiber technology for harvesting marine phytoplankton sounds promising but needs to prove it can compete with existing protein sources on price and scale. Rare Earth Global’s hemp-based aquafeed faces the challenge of convincing fish farmers to switch from established soy and fishmeal suppliers.

## Commercial Hurdles

The commercial hurdles in ocean technology are different from typical tech startups. Regulatory approval processes can take years, especially for food and feed applications. Sales cycles are long because farmers and aquaculture companies typically test new technologies extensively before adoption.

However, when ocean tech companies do achieve commercial traction, the market opportunities are substantial. The [shrimp disease diagnostics market](https://www.sovereignmagazine.com/article/indoor-agricultural-data-tools-drive-sector-resilience-amid-challenges) alone is projected to grow from $213.5 million in 2025 to $550.87 million by 2033, driven by farmers’ need to prevent catastrophic losses.

Energy costs present another commercial reality. Aquaculture operations are sensitive to energy expenses, which explains why Nernst Electric’s focus on lower energy oxygen production addresses a real pain point for fish farmers trying to increase stocking densities profitably.

### Measuring Success

Success in ocean technology isn’t measured just by revenue growth. Companies need to demonstrate reduced mortality rates, cost savings, regulatory compliance and environmental benefits. These metrics matter because ocean tech buyers – whether fish farmers, carbon credit purchasers or food companies – make decisions based on operational improvements rather than technological novelty.

The Crest Accelerator programme recognises this by focusing on market validation alongside technical development. Companies work with industry partners during the programme to test their technologies in real operating conditions.

## Next Steps

The seven companies will spend the next few months rotating through different markets, testing their technologies with potential customers and refining their commercial strategies. Based on Hatch Blue’s track record, several will likely raise follow-on funding, though commercial success will depend on proving their technologies work reliably at scale.

For ocean technology as a sector, this cohort represents the continuing evolution from academic research to commercial application. The companies that succeed will be those that solve real problems for customers willing to pay for solutions, rather than those with the most impressive technical specifications.

Benedict Tan, the programme director, can be reached at benedict@hatch.blue for more information about the programme or connections with participating companies. If you’re interested in why one in five planted trees die before they can help Britain reach net zero, and how innovative approaches are improving survival rates, read [why one in five planted trees](https://www.sovereignmagazine.com/article/why-one-in-five-planted-trees-die-before-they-can-help-britain-reach-net-zero-and-how-rhizoco).