# openSales > openSales is a tender search engine with documentation analysis for small and medium-sized enterprises. It helps find a tender, check the requirements and the most important deadlines, and decide on participation. It collects announcements from TED, e-Zamówienia, Baza Konkurencyjności, and platformazakupowa.pl, as well as procedures below the threshold. It belongs to the OpenNexus group, the operator of platformazakupowa.pl. The search engine is free. ## Who it is for - [Business owners who prepare their own bids](https://opensales.com/dla-kogo/jak-znalezc-przetargi): You run a company and handle tenders yourself. - [Bids alongside other work](https://opensales.com/dla-kogo/oferty-obok-innych-obowiazkow): One person in the company prepares bids while having other duties on their plate. - [Small businesses](https://opensales.com/dla-kogo/male-firmy): You operate alone or with a few people and want to check if tenders are for you. - [First tender](https://opensales.com/dla-kogo/pierwszy-przetarg): Your company has not participated in a tender before and you want to start with a smaller contract. - [Tracking specific institutions](https://opensales.com/dla-kogo/plany-zamowien-publicznych): You supply or produce for specific institutions and want to know what they plan to buy. - [Teams and own systems](https://opensales.com/dla-kogo/praca-zespolowa-nad-oferta): Several people are working on the offers or you want to connect tenders with your own system. ## Types of tenders - [Tenders nearby](https://opensales.com/przetargi-w-okolicy): You are looking for orders within a radius of the company's registered office, from the latest listings. - [Tenders below the threshold](https://opensales.com/przetargi-ponizej-progu): Are you interested in smaller orders and requests for quotations, including from the Competition Database. - [Construction tenders](https://opensales.com/przetargi-budowlane): You perform construction works and are looking for jobs by industry, CPV code, or area. - [Tender with bid security](https://opensales.com/wadium): The tender requires bid security, and you do not want to freeze cash. ## Articles: search tenders - [Search tenders: all articles](https://opensales.com/blog/kategoria/szukanie-przetargow) - [Tender search engine: find contracts for your company](https://opensales.com/blog/wyszukiwarka-przetargow-znajdz-zlecenia-dla-swojej-firmy): Check how to search for tenders for your company. Select keywords, industry, or CPV, set the area and dates, and save the tested filters for next time. - [Tenders for your industry: find contracts with openSales](https://opensales.com/blog/przetargi-dla-twojej-branzy-znajdz-zlecenia-z-ofertowa): Find tenders for your industry: construction, IT, medicine, transport, and more. See how openSales helps you find contracts and analyze documentation. - [How to search for tenders for your company?](https://opensales.com/blog/jak-szukac-przetargow-dla-swojej-firmy): See how to search for tenders for your company. Select the query, industry, location, and dates, and then save the filter set in openSales. ## Articles: levels and thresholds - [Levels and thresholds: all articles](https://opensales.com/blog/kategoria/tryby-i-progi) - [Basic procedure with negotiations (TP 3)](https://opensales.com/blog/tryb-podstawowy-z-negocjacjami-tp-3): What does a supplier submitting an offer need to know? - [Basic procedure with optional negotiations (TP 2)](https://opensales.com/blog/tryb-podstawowy-z-fakultatywnymi-negocjacjami-tp-2): Basic procedure with optional negotiations: a step-by-step guide for the supplier - [Basic procedure without negotiations (TP 1)](https://opensales.com/blog/tryb-podstawowy-bez-negocjacji-tp-1): Basic procedure without negotiations (TP 1) step by step - [Preparation for an open tender](https://opensales.com/blog/jak-przygotowa-si-do-przetargu-nieograniczonego): A practical guide for suppliers through the world of tenders - [Comparison of EU tender and basic procedure](https://opensales.com/blog/porownanie-przetargu-unijnego-i-trybu-podstawowego): EU tender and basic procedure: what are the differences in deadlines, bid security, announcement, and supplier verification. Comparison with PZP regulations. - [EU thresholds in public procurement in 2025](https://opensales.com/blog/progi-unijne-w-zamowieniach-publicznych-w-2025): From what amount does the EU procedure apply? ## Articles: SWZ and participation conditions - [SWZ and participation conditions: all articles](https://opensales.com/blog/kategoria/swz-i-warunki-udzialu) - [How to analyze tender documentation with AI and check answers?](https://opensales.com/blog/jak-analizowac-dokumentacje-przetargowa-z-ai-i-sprawdzac-odpowiedzi): How to analyze tender documentation with AI: check the sources of answers, announcements about missing data, and new attachments before preparing a bid. - [How to check the tender and documents before preparing a bid?](https://opensales.com/blog/jak-sprawdzic-przetarg-i-dokumenty-przed-przygotowaniem-oferty): How to evaluate a tender before preparing an offer: review the scope of the order, parts, attachments, and later changes, and return to the source announcement. - [How to effectively obtain clarifications on the SWZ or OPiW in a national tender](https://opensales.com/blog/jak-skutecznie-uzyskac-wyjasnienia-swz-lub-opiw-w-przetargu-krajowym): If the content of the SWZ or OPiW is unclear to you as a supplier, you can submit an application for clarification. - [Requirement for an on-site visit and document verification](https://opensales.com/blog/wymog-wizji-lokalnej-i-sprawdzenia-dokumentow): When the buyer requires a site visit or on-site document check, how to confirm this and what are the consequences of omitting the requirement. - [How to read the tender specifications (SWZ) step by step](https://opensales.com/blog/jak-czytac-swz-krok-po-kroku): How to read the tender specifications (SWZ) step by step: document structure, participation conditions, bid security, questions for the buyer, and an offer compliant with requirements. ## Articles: bid security - [Bid security: all articles](https://opensales.com/blog/kategoria/wadium) - [Bid guarantee: secure your bid online](https://opensales.com/blog/gwarancja-wadialna-zabezpiecz-oferte-online): See how to go from the procedure card to the online bid bond application. See what data to prepare and what to check in the tender documentation. - [Return of bid security at the request of the supplier](https://opensales.com/blog/zwrot-wadium-na-wniosek-wykonawcy): When can you submit a request for the return of bid security before the end of the procedure (Art. 98(2) of the Pzp) and what are the consequences of such a request. - [Bid security in a tender](https://opensales.com/blog/wadium-w-przetargu): Bid security is a guarantee for the submitted bid that can determine your participation in the tender procedure. ## Articles: after submitting the offer - [After submitting the offer: all articles](https://opensales.com/blog/kategoria/po-zlozeniu-oferty) - [Check whether the agreement does not contain prohibited provisions](https://opensales.com/blog/sprawdz-czy-umowa-nie-zawiera-zakazanych-zapisow): Check whether the contract contains prohibited provisions: tender procedure. - [Actions after submitting an offer](https://opensales.com/blog/dzialania-po-zlozeniu-oferty): Actions after submitting an offer: what can the buyer request? - [Abnormally low price](https://opensales.com/blog/razaco-niska-cena): How to avoid and explain it? ## Articles: openSales in practice - [openSales in practice: all articles](https://opensales.com/blog/kategoria/ofertowa-w-praktyce) - [AI analysis of the SWZ: start from the ready-made summary](https://opensales.com/blog/zatrudnilismy-ai-do-czytania-swz-za-ciebie): AI SWZ Analysis in openSales: ready summaries, answers to questions, and links to sources. The analysis is regenerated after documentation updates. - [Procedure card: check the tender and its documents](https://opensales.com/blog/karta-postepowania-sprawdz-przetarg-i-jego-dokumenty): Get to know the procedure card in openSales. Check the order details, open the attachment preview, and see on the timeline what was published later. - [Watchlist and board: organise your work on tenders](https://opensales.com/blog/obserwowane-i-tablica-uporzadkuj-prace-nad-przetargami): Save selected tenders to your Watchlist and organize work stages on the kanban board. See how to return to documents and plan your next steps in openSales. - [Tender calendar: plan your work on bids](https://opensales.com/blog/kalendarz-przetargow-zaplanuj-prace-nad-ofertami): See the deadlines for observed tenders in openSales. Select week, month, or list view and plan time for documents, pricing, and preparing bids. - [openSales security: ISO certificates and data in Poland](https://opensales.com/blog/bezpieczenstwo-ofertowej-certyfikaty-iso-i-dane-w-polsce): Learn about the four ISO certifications of OpenNexus and the security principles of openSales. Check how we store and process documents using AI in Poland. - [openSales in practice: from finding a tender to preparing a bid](https://opensales.com/blog/ofertowa-w-praktyce-od-znalezienia-przetargu-do-przygotowania-oferty): Get to know openSales's features: tender search engine, documents, AI analysis, observed, and calendar. Go to the guides and start preparing offers. ## Optional - [Full website content for language models](https://opensales.com/llms-full.txt): pages and articles in Markdown - [Articles RSS feed](https://opensales.com/rss.xml) - [OpenNexus](https://opennexus.com/): the group behind openSales