CONSTRUCTORA SIGMA LIMITADA: public contracts won without a rival in Chile: 25 uncontested awards; 96% of its awards; 24 without a competition; 1 single bid.
Assay record ASY-CL-1K2I8O10CH · Cite as: Assay Systems, “CONSTRUCTORA SIGMA LIMITADA: public contracts won without a rival in Chile”, https://assay-systems.com/register/cl/uncontested/s/constructora-sigma-limitada/
CONSTRUCTORA SIGMA LIMITADA won 25 of its 26 public contract awards in Chile without a rival from 2024-01-02 to 2026-02-27: 24 without a competition and 1 after a competition that drew a single bid. 2 buyers awarded it without a rival, the largest SERVICIO DE SALUD COQUIMBO HOSPITAL LA SERENA with 24.
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.
SERVICIO DE SALUD COQUIMBO HOSPITAL LA SERENA gave CONSTRUCTORA SIGMA LIMITADA 24 awards: 24 without a competition, 0 after a competition with a single bid. First 2024-01-02, latest 2025-09-01.
SERVICIO NACIONAL DE PROTECCIÓN ESPECIALIZADA A LA NIÑEZ Y ADOLESCENCI gave CONSTRUCTORA SIGMA LIMITADA 2 awards: 0 without a competition, 1 after a competition with a single bid. First 2025-04-23, latest 2026-02-27.
| Date | Buyer | How | Stated reason |
|---|---|---|---|
| 2026-02-27 | SERVICIO NACIONAL DE PROTECCIÓN ESPECIALIZADA A LA NIÑEZ Y ADOLESCENCI CL-9634767 | Single bid Licitación Pública Entre 100 y 1000 UTM (LE) | — |
| 2025-09-01 | SERVICIO DE SALUD COQUIMBO HOSPITAL LA SERENA CL-53359464 | No competition direct | Naturaleza de la negociación - Proveedor con alto grado de especialización |
| 2025-09-01 | SERVICIO DE SALUD COQUIMBO HOSPITAL LA SERENA CL-53359435 | No competition direct | Naturaleza de la negociación - Proveedor con alto grado de especialización |
| 2025-08-08 | SERVICIO DE SALUD COQUIMBO HOSPITAL LA SERENA CL-53221809 | No competition direct | Costo de evaluación desproporcionado, y por monto de contratación inferior a 100 UTM |
| 2025-08-08 | SERVICIO DE SALUD COQUIMBO HOSPITAL LA SERENA CL-53221694 | No competition direct | Costo de evaluación desproporcionado, y por monto de contratación inferior a 100 UTM |
| 2025-07-16 | SERVICIO DE SALUD COQUIMBO HOSPITAL LA SERENA CL-53077008 | No competition direct | Costo de evaluación desproporcionado, y por monto de contratación inferior a 100 UTM |
Every uncontested award in Chile · All countries · CONSTRUCTORA SIGMA LIMITADA in the register
Source: ChileCompra / Mercado Público open data (purchase orders and tenders). 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.