UK medium enterprises: 50 to 249 employees
UK medium enterprises: 50 to 249 employees stood at 44,875 Businesses in 2026, according to Nomis — official labour market statistics (ONS). It is one of the indicators in the Business population table (Value · Annual), with a complete series running from 2010 to 2026. The complete series with an interactive chart, free to download.
This indicator in the Business population table
| Indicator | 2026 | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Enterprises by employment size | |||||||||||
| Medium (50 to 249) | 44,875 | 44,170 | 43,580 | 42,795 | 41,820 | 41,655 | 42,395 | 42,000 | 41,380 | 40,530 | |
| Large (250 and over) | 11,460 | 11,415 | 11,285 | 10,910 | 10,575 | 10,540 | 10,720 | 10,480 | 10,220 | 9,825 |
Understanding UK medium enterprises: 50 to 249 employees
Isolating mid-market commercial operations across the United Kingdom, this metric tallies enterprises maintaining a workforce from fifty up to two hundred and forty-nine employees. It highlights the core segment of established regional and national businesses that have achieved significant operational scale but remain smaller than major corporate employers. The series counts legal units registered for tax and payroll purposes, excluding informal or unregistered ventures. Unlike smaller sibling categories, enterprises in this band typically feature dedicated administrative departments and formal management structures.
When examining these figures, analysts must account for the migration of firms across the threshold separating small and medium classifications, which can alter counts without new business creation occurring. Revisions to early estimates reflect delayed updates to administrative payroll records. Year-on-year comparisons offer the clearest picture of structural shifts in the mid-market economy. A frequent analytical error is treating this group as economically static, whereas mid-sized enterprises often experience rapid consolidation or expansion cycles.
Frequently asked questions
- What is the upper employee limit for this medium enterprise category?
- The category caps at two hundred and forty-nine employees, with larger firms classified as large enterprises.
- Why do mid-market enterprise counts change over time?
- Changes occur due to organic workforce growth, downsizing, corporate acquisitions, or firms crossing size thresholds.
- Does this series measure total employment within medium firms?
- No, it counts the number of distinct business enterprises that fall within the specified employee size band.