Source: https://tendernation.io/suppliers/michal-sztajnert-wspolnik-bio-hydro-system-sc-karolina-sztajnert-michal-sztajnert-nazwy-firmy-pozostalych-wykonawcow-wsp

Supplier profile

# Bio Hydro System s.c. Karolina Sztajnert, Michał Sztajnert

Public sector contracts won, from published award notices

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Contracts won

2

since 23 Oct 2025

Total awarded

£428,850

where values were published

Buyers

2

public bodies

Latest win

19 Feb 2026

##  Recent contract awards

- [Budowa przydomowych oczyszczalni ścieków w Gminie Promna](https://tendernation.io/opportunities/01a17a61-2f86-7234-8650-06f948946c70/budowa-przydomowych-oczyszczalni-sciekow-w-gminie-promna) [Gmina Promna](https://tendernation.io/buyers/gmina-promna)

    £375,450

    19 Feb 2026
- [Budowa oczyszczalni ścieków dla potrzeb Szkoły Podstawowej w Wymysłowie](https://tendernation.io/opportunities/01a179f7-9931-72f2-98b0-44f7982371c2/budowa-oczyszczalni-sciekow-dla-potrzeb-szkoly-podstawowej-w-wymyslowie) [Gmina Sochaczew](https://tendernation.io/buyers/gmina-sochaczew)

    £53,400

    23 Oct 2025

## Who they win from

- [Gmina Promna 1 win](https://tendernation.io/buyers/gmina-promna)
- [Gmina Sochaczew 1 win](https://tendernation.io/buyers/gmina-sochaczew)

## What they win

- [Construction work](https://tendernation.io/sectors/construction-work) 2

## Is this your company?

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