We're a Sheffield-based SEO agency working with businesses across the UK, including Wales.

The Cardiff market

Cardiff had around 384,000 residents in 2024 estimates, which makes it the largest city in Wales. It has been the capital since 1955. It's the country's main centre for finance and business services, which have driven most of the city's economic growth since the 1990s. Admiral was founded in Cardiff in 1993, Principality Building Society has been based here since the 19th century, and many national insurers, banks and utilities have large offices in the city.

Media is the other big story. BBC Cymru Wales and ITV Cymru Wales are based in Cardiff, and S4C, which moved its headquarters to Carmarthen in 2018, keeps an office in the city. Cardiff's independent TV production sector has been estimated at more than 600 companies, and it's produced shows including Doctor Who, Torchwood and Sherlock. Four higher education institutions give the city tens of thousands of students, which shapes demand in Cathays, Roath and the city centre.

Welsh is part of everyday life. At the 2021 Census, 12.2% of residents, almost 43,000 people, could speak Welsh, and the number of Welsh speakers in the city doubled between 1991 and 2021. For some businesses, offering content in Welsh is a genuine way to stand out.

Major events shape demand. The national stadium, opened in 1999 as the Millennium Stadium and renamed the Principality Stadium in 2016, hosts rugby internationals, concerts and big events. St David's shopping centre offers around 1.4 million square feet of retail space. Cardiff Central is the largest railway station in Wales.

In search, Cardiff is the biggest market in Wales, so broad city terms take real effort and the difficulty differs by sector. Neighbourhood, specialist and bilingual searches are often less contested.

How Cardiff customers search

  • Neighbourhood services. "Dentist Llandaff", "café Pontcanna", "plumber Whitchurch" and "barber Canton" reward businesses with strong local profiles and reviews.
  • Match-day and event searches. Rugby internationals and concerts bring huge crowds searching for food, drink, accommodation and parking around the city centre.
  • Student demand. Lettings, takeaways and services in Cathays and Roath peak at the start of each term.
  • Professional and financial services. Legal, accountancy, insurance and consultancy searches are competitive and trust-led.
  • Welsh-language searches. Some customers search in Welsh for services, education and culture. Few businesses compete there.

How we help Cardiff businesses rank

Map-pack visibility in your neighbourhood. We optimise your Google Business Profile, align directory listings and build a steady flow of genuine reviews for the part of Cardiff you serve.

Bilingual content, done properly. Where it suits your business, we plan Welsh-language pages with correct language tagging, so Google can show the right version to the right searcher.

Event-ready visibility. For hospitality, accommodation and transport, we plan updates around the stadium calendar so you're visible when crowds start searching.

Expertise-led content for professional firms. We help you publish accurate, attributed content that shows real experience, which Google rewards in competitive sectors.

Technical health. Fast, mobile-first, well-structured websites.

Monthly reports. Rankings, calls, bookings and enquiries from Google, with our plan for the next month.

The detail is on our SEO services and local SEO pages.

Client results relevant to Cardiff

REYTFEST, Rotherham. An events website optimised to rank before the festival and built to cope with traffic surges. It's directly relevant to Cardiff's venues and event businesses. Read the REYTFEST case study.

Adapt Planning, Bristol. Just across the Severn, our SEO for this architectural and planning firm brought sharp rises in traffic and rankings within weeks. Read the Adapt Planning case study.

Twelve Trees Care. A care provider covering two cities, whose Google visibility rose sharply and brought in regular enquiries. Read the Twelve Trees Care case study.

Where we work in Cardiff

We work with businesses in Cardiff city centre and around St David's, and in Cardiff Bay. Our coverage includes Pontcanna and Canton, Roath and Cathays, Llandaff and Whitchurch, Llanishen, Splott and Grangetown. We also support businesses serving nearby Penarth. Welsh clients can work with us online, and we come over in person when it's useful.

For businesses trading across South Wales and the South West, see SEO in Newport, SEO in Swansea and SEO in Bristol.

What our clients say

"Brilliant job on our REYT FEST website… it handled busy traffic without slowing down." — Jon Ashton, REYTFEST (verified Google review)

Who wrote this page

Written by Martin Simpkins, founder of SERPentity, an SEO agency based in Sheffield. The local information on this page comes from Wikipedia, plus a review of current Cardiff search results, in October 2026.