More opportunities for SMEs. More bids for buyers.
We help small and medium-sized enterprises take the next step in the public procurement market: understand the tender, assess your capabilities, and decide on participation.
We know the tender from both sides.
OpenNexus develops openBuy for buyers. openSales brings this experience to suppliers.
over 15 years in public procurement
Buyer's site
The buyer announces and conducts procedures, and suppliers submit bids.
Supplier's site
You find tenders, check requirements with analysis, and plan deadlines.
This is where we are. We are developing openSales.
openSales is backed by OpenNexus, a wholly Polish-owned group. We develop the company without investment funds or foreign capital.
We have worked in public procurement for over 15 years, with experience on both the supplier and buyer sides. We use that experience to build tools that help companies find contracts, understand the requirements, and prepare to bid.
Choosing openSales supports Polish technology built around the needs of businesses.
Why was openSales created
Public procurements are transparent, but it is difficult for many small companies to find and read them. We are building openSales so that participating in a tender is a business decision made after reading the documents.
We build engaged communities and improve the quality of life while ensuring the efficiency of public procurement.
Independently verified security
We store and analyze tender documentation in Poland. OpenNexus has four ISO certificates issued by TÜV NORD.
ISO/IEC 27001:2022
information security management
valid until 26.06.2027
Full certificate ISO/IEC 27001:2022 (PDF, 171 KB) (opens in a new tab)
ISO/IEC 27017:2015
cloud service security
valid until 26.06.2027
Full certificate ISO/IEC 27017:2015 (PDF, 163 KB) (opens in a new tab)
ISO/IEC 27018:2019
personal data protection in the cloud
valid until 26.06.2027
Full certificate ISO/IEC 27018:2019 (PDF, 164 KB) (opens in a new tab)
EN ISO 22301:2019
business continuity
valid until 07.01.2029
Full certificate EN ISO 22301:2019 (PDF, 404 KB) (opens in a new tab)
Company data
Open Nexus Sp. z o.o.ul. Bolesława Krzywoustego 3, 61-144 Poznań
- KRS
- 0000335959
- NIP
- 7792363577
- REGON
- 301196705
- Share capital
- 67 000 zł
Sąd Rejonowy Poznań, Nowe Miasto i Wilda w Poznaniu, VIII Wydział Gospodarczy
About us
Still have a question? Contact us
Who is behind openSales?
OpenNexus, the company that also develops openBuy. Every third tender in Poland goes through the openBuy Platform application.
How is openSales different from openBuy?
openBuy supports running procedures: in the openBuy Platform application, buyers announce contracts and suppliers submit bids. openSales supports suppliers: in the openSales Platform application, you search for tenders from several sources, check the requirements with analysis and plan your participation.
Find a tender for your company. Decide whether to bid.
View current tenders
You can view the list of active procedures without logging in. An account is useful if you want to save a search and follow procedures.