Advertising Company

Dirty Little Serifs

Welsh creative agency offering branding, content, digital marketing and advertising for ambitious SMEs

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TrustList summary

Dirty Little Serifs is a creative and strategy agency based in Cardiff and Newport, South Wales. It works as an extension of client sales and marketing teams, handling go-to-market work across branding, content, digital and advertising. The agency aims its work at ambitious small and medium-sized firms that put customer experience first.

Products and services

Branding: brand building, brand discovery workshops and visual identity.
Content and storytelling: content that explains a brand and moves its audience to act.
Digital marketing: digital campaigns and online execution.
Advertising: print, digital and out-of-home advertising.
Art direction and design: design for print and digital, photoshoots and research posters.

Who it works with

Clients range from SMEs to research charities; a poster it designed for a Marie Curie researcher won first prize at a palliative care research conference. Past projects have been for customers in Cardiff, London, Bristol, Chicago, Miami, Málaga, Manila, the Caribbean and Dubai.

Key facts

Based in: Cardiff and Newport, Wales
Clients: in the UK, the US, Europe, Asia, the Caribbean and the Gulf
Focus: branding, content, digital and advertising

Summary written by TrustList from the business's own published information, Sep 2026.

Categories & features

Rankings

Dirty Little Serifs is ranked on 2 TrustList rankings: #2 on 1 and #4 on 1.

Every ranking orders its listings by their reviews, how complete the profile is and the Trust Score. Dirty Little Serifs has no reviews yet and 3 of the 10 profile details we look for. Where no listing on a page has been reviewed, the order follows the profiles alone.

Advertising company · 2 rankings

On each of these it sits behind Digital Marketing Advice, ahead of Equinox Communications UK.

#2of 24
Wales
It is one of 2 here listing driving and one of 5 here listing advertising.
Its profile: “Dirty Little Serifs is a creative and strategy agency based in Cardiff and Newport, South Wales.”
Of the 24 here, 15 also cover creative and 12 also cover business services; 2 also work in York and 2 also work in Oxfordshire.
#4of 6
Cardiff
It is one of 3 here listing creative.
Its profile: “Dirty Little Serifs is a creative and strategy agency based in Cardiff and Newport, South Wales.”
Of the 6 here, 5 also cover advertising & marketing and 4 also cover consumer products & services; 2 also work in Lahore and 2 also work in London.