Kodiaq Technologies Secures £150.4k Pre-Seed to Advance Long-Duration Flow Batteries

Cambridge-based Kodiaq Technologies Limited has raised £150.4k in a pre-seed funding round, achieving an estimated post-money valuation of £4.4m. The company develops organic electrolytes designed to increase the energy density and capacity of long-duration flow batteries used in solar and wind energy generation.

Incorporated in October 2023, Kodiaq Technologies operates in the chemical manufacturing sector and currently employs a team of seven. The company addresses a critical bottleneck in the global transition to renewable energy: the need for scalable, cost-effective long-duration energy storage. Wind and solar power generation are inherently intermittent, requiring robust storage systems to ensure a stable grid supply.

Kodiaq tackles this challenge by developing advanced organic electrolytes that significantly increase the energy density of flow batteries. According to the company, this technology can cut the investment cost per unit of storage by nearly half, making battery-based long-duration energy storage highly investable, sustainable, and globally resilient. Their go-to-market strategy involves retrofitting existing flow battery infrastructure and co-developing future-generation storage solutions alongside original equipment manufacturers and system integrators. Financial metrics such as revenue and profit were not disclosed in the latest filings.

The pre-seed round, allotted on 25 February 2026 and filed on 10 March 2026, brings an estimated £150.4k into the business. This capital injection values the startup at an estimated £4.4m post-money. Specific investor names and details of any prior funding rounds were not disclosed in this filing.

This allotment fits into a broader, highly active UK funding landscape for climate technology and energy storage. Despite global venture capital headwinds, the UK climate tech sector remained robust through 2025, attracting approximately £3.9bn in total equity funding. However, early-stage hardware and deep tech ventures have navigated a tighter funding environment compared to software-based climate solutions, with hardware investment seeing a notable drop over the past year.

Within this ecosystem, energy storage remains a critical priority for investors and policymakers alike. As the UK accelerates the deployment of wind and solar assets, the demand for long-duration storage technologies has surged. Traditional lithium-ion batteries are often unsuited for long-duration grid storage due to cost and supply chain constraints. Flow batteries offer a promising alternative, and innovations like Kodiaq's organic electrolytes are designed to improve the commercial viability of these systems. By offering a retrofit option for existing infrastructure, Kodiaq provides a capital-light approach that appeals to energy investors looking for sustainable, scalable solutions that reduce reliance on traditional mined metals.