How many companies operate in PKD division 37?

The primary industry for 2,547 companies is sewerage. 360 entities have filed financial statements.

How many new companies were registered in 2026?

So far in 2026, 98 new companies with PKD 37 have been registered. In all of 2025, there were 141 such companies.

How many companies were deregistered in 2026?

So far in 2026, 27 companies with PKD 37 have been deregistered. In all of 2025, there were 9 such companies.

What revenue do companies in PKD division 37 generate?

In 2025, the median revenue for PKD 37 was USD 2.57m and the mean revenue was USD 8.41m, based on 285 financial statements. Averages and medians include only companies that file financial statements, excluding sole proprietorships.

Are companies in PKD division 37 profitable?

Yes, in 2025, the median net profit was USD 47.46k, an improvement on 2024 (USD 31.51k). Among all 674 PKD divisions in Poland, it ranks 80th, putting it in the top 12%.

What legal form do companies in PKD division 37 take?

The most common legal form for PKD 37 is a sole proprietorship, used by 2,050 companies in this industry (68.3% of the total). In second place is sp. z o.o. (815 companies, 27.2%), and in third place – sp. j. (65 companies, 2.2%).

Sewerage (PKD division 37)

This division includes:

operation of sewage networks and wastewater treatment systems that collect, treat and discharge wastewater into water bodies or operate surface retention systems,
operation of wastewater treatment systems for reuse purposes (for example for the treatment of agricultural, industrial, road-cleaning wastewater or collected rainwater).

Industry statistics (2025)

Number of companies

Companies

14,556

Companies (primary PKD)

2,547

Companies with financials

360

Business turnover

Legal structure

Legal formShare of companiesNumber of companies

JDG68.3%2,050
Sp. z o.o.27.2%815
Sp. j.2.2%65
S.A.0.9%27
Sp. k.0.5%16
Cooperative0.4%11
Other0.3%9
Foundation0.2%6
Association0.1%2

Financial results

Median revenue

Ranking

Median revenue compared with other PKD codes.

Top companies by revenue

#	Company	Legal form	Revenue	Net profit
1	Miejskie Przedsiębiorstwo Wodociągów I Kanalizacji w M.St. Warszawie	S.A.	USD 447.72m	USD 8.76m
2	Aquanet	S.A.	USD 209.36m	USD 6.16m
3	Miejski Zakład Komunalny	sp. z o.o.	USD 69.48m	USD -4.20m
4	ALBA Miejskie Przedsiębiorstwo Gospodarki Komunalnej	sp. z o.o.	USD 66.12m	USD 6.46m
5	Miejskie Przedsiębiorstwo Wodociągów i Kanalizacji w Lublinie	sp. z o.o.	USD 63.63m	USD 4.58m
6	Wodociągi I Kanalizacja w Opolu	sp. z o.o.	USD 60.89m	USD 2.96m
7	TOI Toi Polska	sp. z o.o.	USD 52.61m	USD 3.48m
8	Przedsiębiorstwo Gospodarki Wodnej i Rekultywacji	S.A.	USD 40.65m	USD 177.25k
9	WC Serwis Polska	sp. z o.o.	USD 37.07m	USD 3.92m
10	Miejskie Przedsiębiorstwo Gospodarki Komunalnej - Krośnieński Holding Komunalny	sp. z o.o.	USD 36.61m	USD 3.26m

Fastest-growing companies

#	Company	Legal form	Revenue	Y/Y growth
1	IN-Drill	sp. z o.o.	USD 6.53m	+172.7% y/y
2	Aquabellis	sp. z o.o.	USD 4.60m	+65.3% y/y
3	Łobeskie Przedsiębiorstwo Komunalne	sp. z o.o.	USD 4.62m	+51.9% y/y
4	ALBA Miejskie Przedsiębiorstwo Gospodarki Komunalnej	sp. z o.o.	USD 66.12m	+34.9% y/y
5	Wodociągi I Kanalizacja w Opolu	sp. z o.o.	USD 60.89m	+34.4% y/y
6	Zakład Usług Komunalnych	sp. z o.o.	USD 3.17m	+26.7% y/y
7	Gminny Zakład Komunalny	sp. z o.o.	USD 2.56m	+26.5% y/y
8	Remondis Hydrokan	sp. z o.o.	USD 2.87m	+24.0% y/y
9	UGOS Service	sp. k.	USD 4.77m	+23.2% y/y
10	Zakład Wodociągów i Kanalizacji Sława	sp. z o.o.	USD 4.91m	+21.9% y/y

Stock market

No companies from this industry are listed.

PKD codes in division 37


37.00.Z	Sewerage	14,556