Serious change, taken seriously.

Strategic communications for organisations driving the energy transition and restoring the natural world. Trusted by those who understand how change works and are determined to make it happen.

What we do

We work with organisations operating where policy, politics and public opinion meet. Organisations that are complex, progressive, and know that lasting influence must be earned.

Uniquely positioned at the intersection of the environmental movement, politics and media, we advise on and deliver strategic communications and campaigns that drive policy and behaviour change.

Our clients include organisations and brands across clean tech, climate, energy, sustainable finance, food and agriculture, waste, nature and marine.

Our specialist team provides policy, political and media advice grounded in deep system understanding, helping clients navigate complex communications challenges and build the relationships that shape decisions and drive serious change.

See our work

Who we are

Our expert team brings together deep experience in environmental policy, public affairs, PR, engagement and strategic communications.

We are independent, passionate, evidence-based and results-driven. Our mission is to accelerate the transition to a net zero, nature positive future by raising awareness, shaping public attitudes, and influencing policy where it matters most.

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"Seahorse has been much more than a public relations & communications firm, they have been a strategic part of our communications and government relations strategy, leaning in, being proactive, and driving thought leadership…..They are our communications & strategic partner, fully integrated into our business."

Bob Psaradellis, former CEO, Renewable Power Capital
"Seahorse brings a high level of professionalism and political intelligence to all of their work. They planned and delivered a parliamentary event with a minimal steer that was instrumental to the successful launch of LCEF. Their knowledge of the political landscape and attention to detail ensured a smooth and stress-free operation at an extremely busy time."

Paul McNamee, Founder of Labour Climate and Environment Forum
"Seahorse has been an integral part of the River Action project since its inception. From helping recruit a world-class advisory board, making a significant input into the communications strategies around our various campaigns – to then engaging with our key stakeholder groups across the media, political and NGO landscapes– Seahorse's connectivity has been a huge asset….It would be fair to say that without their connections and capabilities it is difficult to see how we could have launched River Action at the time we did and made the impact we have."

Charles Watson, River Action Founder and Chairman
"Seahorse has been an invaluable part of the Zero Carbon team from the outset, and their support has been integral to the progression of the campaign. They have worked tirelessly to secure high-level engagement with policy development across Government, business and civil society stakeholders, and are constantly going above and beyond to generate new leads and create opportunities for the campaign. Their passion, expansive network and range of expertise is a true asset, and we are delighted to have been able to partner with them."

Hannah Dillon, Head of the Zero Carbon Campaign
"The team at Seahorse combine passion for the cause with exceptional efficiency and a network of political contacts like no other. Campaigning with them to help protect and restore Britain's lost rainforests has been a joy and has already led to political change. "

Guy Shrubsole, Environmental campaigner and author
"The ability of the Seahorse team to understand a complex brief, create a set of coherent policy asks that match government ambitions and bring together a diverse and influential partnership of supportive organisations has been impressive. Working with them has been a joy as they have been professional, responsive and easy to work with."

Trewin Restorick, Founder of Hubbub and Sizzle
"The Seahorse Environmental team are a pleasure to work with and bring incredible expertise, insights, and support to our environmental campaigns. They are always on the pulse of politics, public opinion, and the media appetite for sustainability campaigns. Their policy advice and political sense is second to none. Highly networked – they’ll always get you into the right conversations and rooms. "

Hugo Tagholm, Executive Director, Oceana

Our clients

We partner with organisations and brands who are developing the solutions of the future - driving innovation and shaping perceptions and behaviours.

See who we work with

Recent work

Renewable Power Capital

Telling the story of a renewables investment platform in Europe

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Nattergal

Demonstrating that nature is an investible asset class

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Wessex Water

A partnership for nature-based water management

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Labour Climate and Environment Forum

Launching the Labour Climate and Environment Forum

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River Action

Campaigning to end water pollution

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Oceana UK

Making ocean protection a cross-party priority

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Reloop

Securing the implementation of a Deposit Return Scheme

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Enrich the Earth

A circular approach to food waste

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The Lost Rainforests of Britain

Bringing nature back from the brink

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CCm Technologies

Raising the profile of greener agricultural practices

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Good Food Institute Europe

Showcasing the potential of alternative proteins

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Thermal Storage UK

Finding routes to market for low carbon heat

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Environmental Investigation Agency

Increasing ambition for the global plastics treaty

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OVO Foundation

Assessing the state of climate education

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SOS-UK

Promoting youth-led climate education

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OVO - Zero carbon campaign

Positioning carbon pricing at the heart of net zero

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Genous

Assessing the market for decarbonising homes

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Global Resilience Partnership

Redefining climate resilience and reaching new audiences

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The Seahorse Trust

Giving endangered species a voice

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WWF-UK

Ensuring biodiversity and sustainable development go hand-in-hand

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