| Number of enterprises, thousands | Enterprises total | Total | | 18.4 | 16.4 | 15.7 |
| There is a trade union | | 1.2 | 1.0 | 0.9 |
| There is no trade union | | 17.2 | 15.5 | 14.8 |
| Companies | Total | | 15.0 | 13.5 | 13.2 |
| There is a trade union | | 0.2 | 0.4 | 0.4 |
| There is no trade union | | 14.8 | 13.2 | 12.8 |
| Non-profit associations and foundations | Total | | 1.2 | 0.9 | 1.0 |
| There is a trade union | | 0.1 | .. | .. |
| There is no trade union | | 1.1 | 0.9 | 0.9 |
| State and local government agencies | Total | | 2.1 | 2.0 | 1.6 |
| There is a trade union | | 0.8 | 0.5 | 0.5 |
| There is no trade union | | 1.3 | 1.4 | 1.1 |
| Enterprises of primary sector | Total | | 0.7 | 0.6 | 1.0 |
| There is no trade union | | 0.7 | 0.6 | 1.0 |
| Enterprises of secondary sector | Total | | 5.0 | 4.6 | 4.5 |
| There is a trade union | | 0.2 | 0.1 | 0.2 |
| There is no trade union | | 4.9 | 4.5 | 4.2 |
| Enterprises of tertiary sector | Total | | 12.6 | 11.2 | 10.3 |
| There is a trade union | | 1.0 | 0.8 | 0.7 |
| There is no trade union | | 11.6 | 10.3 | 9.6 |
| Enterprises of Northern Estonia | Total | | 9.7 | 8.8 | 8.6 |
| There is a trade union | | 0.5 | 0.4 | 0.4 |
| There is no trade union | | 9.2 | 8.5 | 8.3 |
| Enterprises of Central Estonia | Total | | 1.5 | 1.3 | 1.2 |
| There is no trade union | | 1.4 | 1.2 | 1.1 |
| Enterprises of Northeastern Estonia | Total | | 1.2 | 0.9 | 0.9 |
| There is a trade union | | 0.1 | 0.1 | .. |
| There is no trade union | | 1.1 | 0.8 | 0.8 |
| Enterprises of Western Estonia | Total | | 1.6 | 1.8 | 1.6 |
| There is no trade union | | 1.4 | 1.7 | 1.5 |
| Enterprises of Southern Estonia | Total | | 4.3 | 3.5 | 3.4 |
| There is a trade union | | 0.3 | 0.2 | 0.2 |
| There is no trade union | | 4.0 | 3.2 | 3.2 |
| Enterprises with 5-9 employees | Total | | 9.0 | 6.9 | 4.8 |
| There is no trade union | | 8.9 | 6.9 | 4.8 |
| Enterprises with 10-49 employees | Total | | 7.5 | 7.6 | 8.5 |
| There is a trade union | | 0.6 | 0.4 | .. |
| There is no trade union | | 6.9 | 7.2 | 8.2 |
| Enterprises with 50-249 employees | Total | | 1.7 | 1.6 | 2.0 |
| There is a trade union | | 0.4 | 0.4 | 0.4 |
| There is no trade union | | 1.3 | 1.3 | 1.7 |
| Enterprises with 250 and more employees | Total | | 0.2 | 0.3 | 0.3 |
| There is a trade union | | 0.1 | 0.1 | 0.1 |
| There is no trade union | | 0.1 | 0.2 | 0.2 |
| Share of the enterprises (total=100), % | Enterprises total | Total | | 100.0 | 100.0 | 100.0 |
| There is a trade union | | 6.4 | 5.8 | 6.0 |
| There is no trade union | | 93.6 | 94.2 | 94.0 |
| Companies | Total | | 100.0 | 100.0 | 100.0 |
| There is a trade union | | 1.5 | 2.7 | 2.8 |
| There is no trade union | | 98.5 | 97.3 | 97.2 |
| Non-profit associations and foundations | Total | | 100.0 | 100.0 | 100.0 |
| There is a trade union | | 11.4 | .. | .. |
| There is no trade union | | 88.6 | 94.3 | 93.9 |
| State and local government agencies | Total | | 100.0 | 100.0 | 100.0 |
| There is a trade union | | 38.4 | 27.4 | 32.1 |
| There is no trade union | | 61.6 | 72.6 | 67.9 |
| Enterprises of primary sector | Total | | 100.0 | 100.0 | 100.0 |
| There is no trade union | | 99.8 | 99.8 | 99.8 |
| Enterprises of secondary sector | Total | | 100.0 | 100.0 | 100.0 |
| There is a trade union | | 3.0 | 2.6 | 5.0 |
| There is no trade union | | 97.0 | 97.4 | 95.0 |
| Enterprises of tertiary sector | Total | | 100.0 | 100.0 | 100.0 |
| There is a trade union | | 8.1 | 7.4 | 6.9 |
| There is no trade union | | 91.9 | 92.6 | 93.1 |
| Enterprises of Northern Estonia | Total | | 100.0 | 100.0 | 100.0 |
| There is a trade union | | 5.0 | 4.1 | 4.1 |
| There is no trade union | | 95.0 | 95.9 | 95.9 |
| Enterprises of Central Estonia | Total | | 100.0 | 100.0 | 100.0 |
| There is no trade union | | 95.2 | 91.1 | 87.5 |
| Enterprises of Northeastern Estonia | Total | | 100.0 | 100.0 | 100.0 |
| There is a trade union | | 8.8 | 13.8 | .. |
| There is no trade union | | 91.2 | 86.2 | 84.0 |
| Enterprises of Western Estonia | Total | | 100.0 | 100.0 | 100.0 |
| There is no trade union | | 86.3 | 94.3 | 93.7 |
| Enterprises of Southern Estonia | Total | | 100.0 | 100.0 | 100.0 |
| There is a trade union | | 6.7 | 6.8 | 5.7 |
| There is no trade union | | 93.3 | 93.2 | 94.3 |
| Enterprises with 5-9 employees | Total | | 100.0 | 100.0 | 100.0 |
| There is no trade union | | 99.1 | 99.0 | 98.2 |
| Enterprises with 10-49 employees | Total | | 100.0 | 100.0 | 100.0 |
| There is a trade union | | 7.9 | 5.8 | .. |
| There is no trade union | | 92.1 | 94.2 | 95.7 |
| Enterprises with 50-249 employees | Total | | 100.0 | 100.0 | 100.0 |
| There is a trade union | | 23.4 | 21.1 | 19.1 |
| There is no trade union | | 76.6 | 78.9 | 80.9 |
| Enterprises with 250 and more employees | Total | | 100.0 | 100.0 | 100.0 |
| There is a trade union | | 48.0 | 39.2 | 32.3 |
| There is no trade union | | 52.0 | 60.8 | 67.7 |