AGENCY LIST

Heavy Penguin

Ware, Hertfordshire, United Kingdom
Visit heavypenguin.com

Open-source digital solutions for membership and charity sectors

Heavy Penguin specializes in creating digital solutions tailored for membership, charity, and not-for-profit organizations. They focus on designing, building, launching, and supporting web solutions, emphasizing a user-first approach. Their expertise lies in integrating CMS and CRM systems to help organizations manage data, personalize content, and automate processes.

The agency offers a range of services including experience design, development and support, and digital strategy. They provide 24/7 managed application and hosting support, ensuring robust and reliable solutions powered by open-source technology. Heavy Penguin's team of UK-certified developers and design experts work closely with clients to deliver value through long-term partnerships.

Heavy Penguin has worked with notable clients such as the British Chiropractic Association and The Institute of the Motor Industry, delivering projects that enhance digital experiences and streamline operations. Their work has been recognized with awards, highlighting their commitment to excellence in the digital landscape.

4
SERVICES

Capabilities

Category

Web Development

Services

Agency details

Team size
11-50 people

About this agency on Agency List

Heavy Penguin holds an Agency List Score of 96 out of 100.

That score is higher than 89% of the 36,920 agencies Agency List has assessed so far.

The Agency List Score measures how well an agency documents its work in public: named clients, quantified outcomes, and whether those outcomes are attributed to the agency rather than to the client.

It does not measure client satisfaction, price, or availability.

How the Agency List Score is measured

Assessment date

Agency List assessed Heavy Penguin in September 2026, reading 6 pages published on heavypenguin.com.

The score reflects what Heavy Penguin had published by that date; anything published since has not been read.

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