RIAÑO CONSTRUCTORA SAS: public contracts won without a rival in Colombia: 4 uncontested awards; 100% of its awards; 4 without a competition; 0 single bid.
Assay record ASY-CO-0HI63TU03U · Cite as: Assay Systems, “RIAÑO CONSTRUCTORA SAS: public contracts won without a rival in Colombia”, https://assay-systems.com/register/co/uncontested/s/riano-constructora-sas/
RIAÑO CONSTRUCTORA SAS won 4 of its 4 public contract awards in Colombia without a rival from 2024-12-11 to 2025-11-11: 4 without a competition and 0 after a competition that drew a single bid. 1 buyer awarded it without a rival, the largest CATEDRAL DE SAL DE ZIPAQUIRÁ SASEM with 4.
An award is uncontested when the buyer had no rival offer to weigh: it was made without a competition (direct award, negotiated procedure without a call for tenders, sole-source or advance-notice contract), or a competition was held and only one bid arrived. Every count below is built award by award from the official notices. Awards to individuals are not included.
CATEDRAL DE SAL DE ZIPAQUIRÁ SASEM gave RIAÑO CONSTRUCTORA SAS 4 awards: 4 without a competition, 0 after a competition with a single bid. First 2024-12-11, latest 2025-11-11.
| Date | Buyer | How | Stated reason |
|---|---|---|---|
| 2025-11-11 | CATEDRAL DE SAL DE ZIPAQUIRÁ SASEM CO1.PCCNTR.8576867 | No competition Contratación régimen especial | Regla aplicable |
| 2025-07-28 | CATEDRAL DE SAL DE ZIPAQUIRÁ SASEM CO1.PCCNTR.8129081 | No competition Contratación régimen especial | Regla aplicable |
| 2025-05-23 | CATEDRAL DE SAL DE ZIPAQUIRÁ SASEM CO1.PCCNTR.7883819 | No competition Contratación régimen especial | Regla aplicable |
| 2024-12-11 | CATEDRAL DE SAL DE ZIPAQUIRÁ SASEM CO1.PCCNTR.7133510 | No competition Contratación régimen especial | Regla aplicable |
Every uncontested award in Colombia · All countries · RIAÑO CONSTRUCTORA SAS in the register
Source: SECOP II, Colombia Compra Eficiente open data (datos.gov.co). Awards are matched to their buyer and supplier as published. Values in these notices often state a framework ceiling rather than a contract amount, so awards are counted, not summed. Updated 17 October 2026.