Onderwijsstichting Zelfstandige Gymnasia: tenders, sectors & how to win their contracts

Onderwijsstichting Zelfstandige Gymnasia has published 5 tenders in Netherlands.

Its buying spans 4 CPV divisions, most often financial and insurance services.

Across 3 awarded contracts the median value is €560k.

Its published awards total €4m.

How to win their contracts

Measured from Onderwijsstichting Zelfstandige Gymnasia's own published record — no estimates, no generic advice.

Plan for about 68 days to prepare a bid — that is the median gap between publication and deadline across 5 of their tenders.
They publish about 0.1 tenders a month, measured over 54 months of history.
Half of their 3 awarded contracts are worth €560k or less — size your bid to that range.
Most of their buying falls in financial and insurance services, printed matter and related products, construction work.

Tender	Winner	Tender closed	Contract Value
Barlaeus Gymnasium schoonmaak en glasbewassing	Effektief Groep B.V.	1 October 2025	€128.6k
Europese aanbesteding Collectieve Inkomensverzekering	ASR Schadeverzekering N.V.	19 August 2024	€560k
Leermiddelen	[ VanDijk B.V. ] ---	7 September 2023	€3.4m

Contracts are dated by the tender's closing date — award dates are not published in the source data.