Diamant-groep: tenders, sectors & how to win their contracts

Diamant-groep has published 53 tenders in Netherlands.

1 is open for bids as of 14 November 2026.

Its buying spans 16 CPV divisions, most often agricultural, forestry, horticultural, aquacultural and apicultural services.

Across 15 awarded contracts the median value is €750k.

Its published awards total €19.7m.

Open Tenders

(1)

Closing SoonEU Funded

Diamant-groep

Diamant-groep werkt met Microsoft Dynamics NAV 2018 (on-premises). Het onderhoudscontract loopt af in 2028 en de versie ...

Netherlands

€250,000

9 days remaining

72263000-6

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Measured from Diamant-groep's own published record — no estimates, no generic advice.

Plan for about 47 days to prepare a bid — that is the median gap between publication and deadline across 52 of their tenders.
They publish about 0.8 tenders a month, measured over 68 months of history.
Half of their 15 awarded contracts are worth €750k or less — size your bid to that range.
Most of their buying falls in agricultural, forestry, horticultural, aquacultural and apicultural services, sewage, refuse, cleaning and environmental services, business services: law, marketing, consulting, recruitment, printing, security.
Their most frequent suppliers are Joh. Vos Capelle B.V. (2), Intermont Assuradeuren B.V. (2), Stratenmakersbedrijf Gebroeders Vos B.V. (2) — expect to bid against incumbents who already know this buyer.

Tender	Winner	Tender closed	Contract Value
Investering en onderhoud Groenmachines	B. van Loon Groentechniek B.V., Vermech, Megens Oirschot B.V.	3 September 2026	€2.1m
Investering en onderhoud Veegmachines	Vermech, Ravo B.V., Aebi Schmidt Nederland B.V.	24 June 2026	€2.1m
Maaien extensief gras	J. van Esch B.V., Vebego Groen B.V., P. Pijnenburg & Zn B.V., Integral Green Solutions B.V., Ploegmakers Cultuurtechniek B.V.	11 June 2026	€1.9m
Maaien intensief gras	J. van Esch B.V., Vebego Groen B.V., Integral Green Solutions B.V., Ploegmakers Cultuurtechniek B.V.	11 June 2026	€3.2m
Borstelen	Integral Green Solutions B.V., Aannemersbedrijf M.J. Smits B.V., J. van Esch B.V., Vebego Groen B.V., Donker Groep B.V.	21 May 2026	€5m
Brandverzekering Diamant-groep	Omniguard Assuradeuren B.V., Nationale-Nederlanden Schadeverzekering Maatschappij N.V., Allianz Benelux N.V., Mandatis	6 November 2025	€40.4k

Supplier	Contracts	Total Value
Joh. Vos Capelle B.V.	2	€750k
Intermont Assuradeuren B.V.	2	-
Stratenmakersbedrijf Gebroeders Vos B.V.	2	-