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ROK Planned cleaning and inspection of sewage
ROK Planmatig reinigen en inspecteren riolering — original title
Your path to submission
- Deadline: 30 November at 13:00 — 29 days left.
- You submit on TenderNed — not here and not by e-mail. ↗ Submission via TenderNed with an eHerkenning account — issuance for foreign firms can take time; apply early. Sort out account and signature first — not on submission day.
- Offer and evidence in: Dutch.
- Collect your evidence — use the eligibility analysis on this page: it lists the requirements and, for known certificates, how to get them.
What the buyer is looking for
The Client has the objective of contracting a contractor who is responsible for the professional cleaning and inspection of the sewage system under management by the municipality of Gouda. The Assignment is tendered for a period of two (2) years. The Client has the right to extend the Assignment by one (1) year twice. The Assignment starts on 1 February 2027. See Procurement Guidance.
Contract
Type of service
Clement What the numbers say about this buyer
- 2% of this buyer's awards went to companies that had already won here before (140 awards since 2015, spread over 66 companies). 98% went to new names.n = 140 awards since 2015
- The median procedure drew 4 bids (115 procedures with a bid count); 11% ended with a single bidder. Sector: median 3 bids.n = 115
- 6% of awards went to companies from abroad (140 awards with a known winner country). Sector average: 2%.n = 140
- 26% of the bids received came from small and medium-sized enterprises (48 procedures with a bid mix). Sector: 36%.n = 48
From this buyer's documented awards; comparison values from the same sector and country. Not a forecast, not legal advice. As of 01/11/2026.
Selection criteria — via the ESPD
The buyer states in the notice that eligibility is proven through the European Single Procurement Document (ESPD); the concrete requirements are in the tender documents. The document analysis below extracts them from there — bid and evidence in Dutch.
Eligibility analysis from the tender documents
Tender documents — direct download
Who has won at this buyer so far
Across all contract types of this buyer — not just this sector. A city buys software and fire engines through the same purchasing office.
| Company | Awards | Period |
|---|---|---|
| ASVZ | 2 | 2024 |
| Witteveen+Bos Raadgevende ingenieurs B.V. | 2 | 2024 |
| Jos Scholman infra | 2 | 2025 |
| Lelie Zorggroep | 1 | 2024 |
| Gebroeders Van Vliet Riooltechniek B.V. | 1 | 2025 |
How often this buyer tenders this kind of work
Tactics
When this buyer has awarded in this sector, usually only one or two bids came in. A solid bid has a real chance here. (Based on 3 completed awards — not a statement about this procedure.)
This procedure allows 42 days between publication and deadline — typical in this country is 48 (median of 2,911 procedures). A normal window for this market.
The deadline falls on a Monday — your last full working day is the Friday before. Have evidence and guarantees together by Thursday.
Foreign bidders
In the Netherlands · Cleaning, environment & waste, 42 contracts went to foreign companies over the last 3 years (of 2,209 recorded awards) — mostly from Germany, France, Belgium.
Submission language: Dutch.
How to bid
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