SIARE: public contracts and tenders
SIARE awarded 127 public contracts worth €53.1M where a value is stated since 2015-03-06; the architecture and engineering services contract held by HYDROSPHERE ends on 2027-02-09 (start + duration). Source: Arcadium Data, data as of .
Awarded value = the award values the notices state (EUR at the notice date), 109 of 127 awards; framework agreements (a ceiling, not spend) and implausible values are left out.
Buyer
| Field | Value |
|---|---|
| Name | SIARE |
| Country | France |
| Buyer type | Body governed by public law |
| City | Soisy-Sous-Montmorency |
| Sources | BOAMP (France), EU TED |
Top suppliers
| Supplier | Registry number | Website | Awards | Value won alone |
|---|---|---|---|---|
| BARRIQUAND | 6 | €654k | ||
| COSSEC | 3 | €263k | ||
| SEMERU | 3 | €466k | ||
| Champar | 2 | €109k | ||
| FAYOLLE | 2 | €310k | ||
| L'ESSOR | 2 | n/a | ||
| MARKEDIA | 2 | €25,535 | ||
| SAFEGE | 2 | €259k | ||
| Sethy | 2 | €126k | ||
| Société HYDRATEC | 2 | €86,675 | ||
| SOGELINK | 2 | €15,716 | ||
| ADENIUM ENVIRONNEMENT | 1 | n/a | ||
| ALISEA | 1 | €35,139 | ||
| AMODIAG ENVIRONNEMENT | 1 | €71,590 | ||
| AQUASCOP | 1 | €35,800 |
Suppliers named on SIARE's award notices (the top 15 of 54); registry number and website where the supplier is linked to its register entry. Winners that could be a private person are withheld.
Contracts ending in the next 18 months
| Ends | Contract | Current holder | Value | End date basis |
|---|---|---|---|---|
| 2026-12-28 | 1306 TRVX : Travaux de refonte du bassin de retenue des eaux pluviales dit « Mare de Beauchamp », à Pierrelaye | €3.2M | start + duration | |
| 2027-01-02 | 2026 RES : ACCORD-CADRE À BONS DE COMMANDE POUR LE CURAGE ET LES INSPECTIONS TÉLÉVISÉES DANS LE CADRE DE L'EN… (framework) | n/a | start + duration | |
| 2027-02-06 | 2026 ELEC : ACCORD-CADRE À BONS DE COMMANDE POUR LA MAINTENANCE, L'ENTRETIEN ET LES TRAVAUX DE RÉHABILITATION… (framework) | n/a | start + duration | |
| 2027-02-09 | 2025 QUAL MA : RÉALISATION DE SUIVIS DE LA QUALITÉ DES EAUX SUR LES MILIEUX AQUATIQUES ET LES OUVRAGES DU SIA… | HYDROSPHERE | €76,593 | start + duration |
End dates checked against the official notice: 99% right (n=100, 95% CI 94%-100%, 2026-10-26; method).
Award notices of SIARE whose contract period ends in the next 18 months: the end date the notice states, else its start or signature date plus the stated duration. 4 contracts; a framework's value is a ceiling and is not shown.
Open calls for tender
No open call for tender from SIARE today.
Spend by sector (CPV divisions)
| Sector | CPV | Awards | Awarded value |
|---|---|---|---|
| Construction work | 45 | 21 | €28.3M |
| Architecture and engineering services | 71 | 18 | €1.3M |
| Business services | 79 | 6 | €129k |
| Waste, cleaning and environmental services | 90 | 3 | €187k |
| Repair and maintenance services | 50 | 2 | €981k |
| Chemical products | 24 | 1 | €7,975 |
| Laboratory and precision equipment | 38 | 1 | €78,031 |
| Administration and social security services | 75 | 1 | €30,800 |
| Agricultural and forestry services | 77 | 1 | €89,647 |
| Recreational, cultural and sporting services | 92 | 1 | €12,190 |
Award notices with a named winner, by the main CPV code; value = the total the notices state, in EUR at the notice date; framework agreements (a ceiling, not spend) and implausible values are left out.
Recent awards
Follow this buyer free
Get SIARE's new calls for tender, awards and contracts ending in a free weekly email (Tender Radar free tier: a saved search for this buyer's name in France). The same data is in the REST API and the MCP server.
Sources: BOAMP (France), EU TED, read through their open-data feeds without logging in. Buyer = contracting authority as named on the notice; notices are grouped by the normalised name and country.
Source: Arcadium Data tenders database, 3,811,022 official public procurement notices from EU TED, UK Find a Tender, UK Contracts Finder and national procurement boards, read through their open-data services (no logins). Winners that could be a private person (sole traders) are withheld; buyers are public bodies. Data as of 2026-10-27.
Questions
How many public contracts has SIARE awarded?
SIARE published 127 contract award notices between 2015-03-06 and 2026-10-19; the 109 that state a value add up to €53.1M (official notices, as of 2026-10-27).
Who are SIARE's biggest suppliers?
By contract awards: BARRIQUAND (6), COSSEC (3) and SEMERU (3) (as of 2026-10-27). Winners that could be a private person are not named.
Which SIARE contracts end soon?
4 contracts awarded by SIARE end in the next 18 months. The soonest with a named holder is the architecture and engineering services contract held by HYDROSPHERE, ending on 2027-02-09 (start + duration) (as of 2026-10-27).
Does SIARE have open tenders now?
No call for tender from SIARE is open today in the official notices we read (as of 2026-10-27). Its 120 earlier calls are counted on this page.
What does SIARE buy?
Most of SIARE's awards are in Construction work (CPV 45) (21), Architecture and engineering services (CPV 71) (18) and Business services (CPV 79) (6) (as of 2026-10-27).
Cite as: Arcadium Data, "SIARE tenders and contracts: 127 awards, suppliers, contracts ending", https://arcadiumdata.io/tenders/buyers/siare-fr/, data as of 2026-10-27.