Operation of gravel and sand pits; mining of clays and kaolin (PKD 08.12.Z)
This subclass includes:
- extraction and dredging of gravel and sand,
- crushing and grinding of gravel,
- extraction of clay, fire clay and kaolin.
This subclass excludes:
- extraction of bituminous sand, classified in 06.10.Z.
Industry statistics (2025)
Number of companies
Companies
10,511
Companies (primary PKD)
1,974
Companies with financials
499
Business turnover
Legal structure
Legal formShare of companiesNumber of companies
- Sp. z o.o.45.9%906
- JDG44.2%873
- Sp. j.4.5%89
- Sp. k.3.4%68
- S.A.1.2%24
- Cooperative0.1%2
- P.S.A.0.1%1
- Foundation0.1%1
- Association0.1%1
- Other0.1%1
Financial results
The calculation excludes new companies that pull financial results down. Only firms with a filing in the previous year are included, so market trends are easier to read.
Median revenue
Ranking
Median revenue compared with other PKD codes.
Top companies by revenue
| # | Company | Legal form | Revenue | Net profit |
|---|---|---|---|---|
| 1 | sp. z o.o. | USD 77.15m | USD 12.57m | |
| 2 | S.A. | USD 52.55m | USD 7.80m | |
| 3 | sp. z o.o. | USD 36.72m | USD 12.03m | |
| 4 | sp. z o.o. + limited partnership | USD 34.91m | USD -2.09m | |
| 5 | sp. z o.o. | USD 30.37m | USD 3.35m | |
| 6 | S.A. | USD 28.43m | USD 1.45m | |
| 7 | S.A. | USD 26.51m | USD 1.95m | |
| 8 | S.A. | USD 25.76m | USD 4.14m | |
| 9 | sp. j. | USD 22.53m | USD 4.74m | |
| 10 | S.A. | USD 18.78m | USD 2.38m |
Fastest-growing companies
| # | Company | Legal form | Revenue | Y/Y growth |
|---|---|---|---|---|
| 1 | sp. z o.o. | USD 1.37m | +164.8% y/y | |
| 2 | sp. z o.o. | USD 2.84m | +164.5% y/y | |
| 3 | sp. z o.o. | USD 2.37m | +155.0% y/y | |
| 4 | sp. z o.o. | USD 7.34m | +144.6% y/y | |
| 5 | sp. z o.o. | USD 2.12m | +134.1% y/y | |
| 6 | sp. z o.o. | USD 1.33m | +129.4% y/y | |
| 7 | sp. z o.o. | USD 1.51m | +104.9% y/y | |
| 8 | sp. z o.o. | USD 1.84m | +78.5% y/y | |
| 9 | sp. z o.o. | USD 1.81m | +63.7% y/y | |
| 10 | sp. z o.o. | USD 1.32m | +63.0% y/y |
Stock market
No companies from this industry are listed.
Related PKD codes in division 08
FAQ
The primary industry for 1,974 companies is operation of gravel and sand pits; mining of clays and kaolin. 499 entities have filed financial statements.
So far in 2026, 52 new companies with PKD 08.12.Z have been registered. In all of 2025, there were 46 such companies.
So far in 2026, 10 companies with PKD 08.12.Z have been deregistered. In all of 2025, there were 35 such companies.
In 2025, the median revenue for PKD 08.12.Z was USD 587.19k and the mean revenue was USD 2.70m, based on 329 financial statements. Averages and medians include only companies that file financial statements, excluding sole proprietorships.
Yes, in 2025, the median net profit was USD 22.06k, down from 2024 (USD 32.34k). Among all 674 industries in Poland, PKD 08.12.Z ranks 248th, putting it in the top 37%.
The most common legal form for PKD 08.12.Z is sp. z o.o., used by 906 companies in this industry (45.9% of the total). In second place is a sole proprietorship (873 companies, 44.2%), and in third place – sp. j. (89 companies, 4.5%).






