Marketing or advertising agency companies in the Doncaster area
183 marketing or advertising agency companies have a registered office in the Doncaster area (DN postcodes), and 61 of them were formed in 2025 or 2026. In their latest accounts, the typical one held £24,125 in cash and owed £9,867 at year end.
The numbers
| Measure | Doncaster | UK |
|---|---|---|
| Registered companies | 183 | 33,083 |
| Formed in 2025 or 2026 | 61 (33%) | 33% |
| Being struck off or in liquidation | 30 (16%) | 9.2% |
| Typical cash at year end | £24,12530 accounts | £17,802 |
| Typical amount owed at year end | £9,86780 accounts | £14,687 |
| Typical number of employees | 183 accounts | 1 |
What this means if you’re starting one
Most of your competition will be other newcomers
33% of the 183 marketing or advertising agency companies in the Doncaster area (DN postcodes) were formed in 2025–26, against 23% of all companies in the Doncaster area (DN postcodes). Nationally, that share of new companies is higher than 92% of UK industries.
New rivals are arriving faster than in most trades, so your customers already have fresh options. Being new is not a difference on its own.
You can start without much equipment
The typical marketing or advertising agency company in the Doncaster area (DN postcodes) carries £2,858 of equipment and other fixed assets after depreciation, lower than 94% of UK industries.
Most of the cost of entry is time and running costs rather than kit, so a small test is cheap.
the Doncaster area (DN postcodes) has fewer of these businesses than most places
Marketing or advertising agency companies are 0.42% of companies registered in the Doncaster area (DN postcodes), against 0.61% UK-wide (0.7× the national share).
That could be a gap or a sign of weak demand. The register cannot tell which.
Planning a business like this in Doncaster?
Answer two questions about your customer and what makes you different, and get a free three-week plan to test the idea before you spend real money. No account or card.
Check my ideaWhat these figures can’t tell you
Companies are counted where their registered office is, which may be an accountant or a home address rather than a shop. Sole traders and partnerships are not on the register, and electronically filed accounts cover roughly 60–75% of accounts filed each year. The figures describe companies that exist; they cannot prove demand for your idea or predict whether it will work. How the figures are built.
Marketing or advertising agency in other places
- Leeds467 companies
- Sheffield379 companies
- London10,410 companies
- Manchester1,001 companies
- Birmingham767 companies
- Cardiff549 companies
- Brighton499 companies
- Ipswich468 companies
Other businesses in Doncaster
- Buy-to-let landlord2,211 companies
- Haulage2,139 companies
- Business consultancy1,310 companies
- Dog grooming and other personal services1,071 companies
- Online shop835 companies
- Car repair and valeting806 companies
- Takeaway and street food723 companies
- Hair and beauty salon694 companies