Official data · ONS UK Business Counts, March 2026

Find clients for your agency in Swansea

The Swansea council area counts 1,495 local businesses of the kinds agencies sell websites, SEO and ads to. The biggest groups: 525 restaurants and takeaways, 220 hair and beauty salons and 200 builders. 25 advertising agencies compete for them.

1,495
local businesses in these trades
25
advertising agencies
343
businesses per agency

The local businesses agencies sell to in Swansea

Counts of business sites (local units, rounded to 5) by trade in the Swansea council area, per 10,000 residents, against the median of the 32 UK cities on this list.

TradeBusinessesPer 10,000 residentsvs median
Electricians1556.2+27%
Hair and beauty salons2208.8+13%
Builders2008.0+11%
Garages and vehicle repair1857.4+6%
Plumbing and heating1204.8at the median
Restaurants and takeaways52521.0at the median
Estate agents903.6−5%

Source: ONS UK Business Counts, March 2026; population 249,429 (ONS mid-2025 estimate). Council area, not the wider metro area. Counts change as businesses open and close.

Where Swansea stands out

  • Electricians: 6.2 per 10,000 residents, 27% above the median of the 32 UK cities on this list (rank 8 of 32).
  • Hair and beauty salons: 8.8 per 10,000 residents, 13% above the median (rank 6).
  • Estate agents: scarcer here (5% below the median), so fewer prospects, each with fewer rivals.
  • Competition: 25 advertising agencies for 8,570 businesses of all kinds, one for every 343. The median across the 32 UK cities on this list is one for every 191, so Swansea ranks 3 of 32 on businesses per agency (1 is the least crowded): more businesses per agency than most, more room for you.

How Swansea compares with nearby and similar cities

Of these 7 cities, Portsmouth has the most of these businesses per resident and Aberdeen the most businesses per agency.

CityLocal businessesPer 10,000 residentsBusinesses per agencyStrongest trade, vs median
Swansea1,49560343Electricians (+27%)
Cardiff2,29560193Estate agents (+21%)
Aberdeen1,10048408Electricians (at the median)
Portsmouth1,46069221Electricians (+65%)
York1,24059180Plumbing and heating (+31%)
Reading1,05557206Builders (+28%)
Oxford82049215Estate agents (+35%)

Your first three lists in Swansea

  1. Restaurants and takeaways: 525 businesses, close to the median per resident, so the volume is the reason to start here (rank 17 of 32).
  2. Hair and beauty salons: 220 businesses, close to the median per resident, so the volume is the reason to start here (rank 6 of 32).
  3. Builders: 200 businesses, close to the median per resident, so the volume is the reason to start here (rank 12 of 32).

How to work a list, from the "No website" filter to the first call: LeadsIt for agencies.

Frequently asked questions

How many local businesses can an agency prospect in Swansea?

ONS UK Business Counts, March 2026 counts 1,495 business sites (local units, rounded to 5) in the trades on this page in the Swansea council area, including 525 restaurants and takeaways, 220 hair and beauty salons and 200 builders.

How many marketing agencies are there in Swansea?

25 advertising agencies in the Swansea council area (ONS UK Business Counts, March 2026), one for every 343 businesses, against a median of one for every 191 across the 32 UK cities on this list.

Which trade should an agency target first in Swansea?

By volume, restaurants and takeaways (525). Relative to its size, Swansea stands out most on electricians: 6.2 per 10,000 residents, rank 8 of 32.

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