CASTILLO,SIERRA,,ARIEL,ERNESTO: public contracts won without a rival in Guatemala: 7 uncontested awards; 78% of its awards; 0 without a competition; 7 single bid.
Assay record ASY-GT-0E8ODMH04U · Cite as: Assay Systems, “CASTILLO,SIERRA,,ARIEL,ERNESTO: public contracts won without a rival in Guatemala”, https://assay-systems.com/register/gt/uncontested/s/castillo-sierra-ariel-ernesto/
CASTILLO,SIERRA,,ARIEL,ERNESTO won 7 of its 9 public contract awards in Guatemala without a rival from 2024-05-09 to 2026-01-28: 0 without a competition and 7 after a competition that drew a single bid. 4 buyers awarded it without a rival, the largest MUNICIPALIDAD DE SAYAXCHE, PETÉN with 3.
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.
MUNICIPALIDAD DE SAYAXCHE, PETÉN gave CASTILLO,SIERRA,,ARIEL,ERNESTO 4 awards: 0 without a competition, 3 after a competition with a single bid. First 2024-05-09, latest 2024-12-19.
MUNICIPALIDAD DE SAN JUAN CHAMELCO, ALTA VERAPAZ gave CASTILLO,SIERRA,,ARIEL,ERNESTO 3 awards: 0 without a competition, 2 after a competition with a single bid. First 2024-08-14, latest 2025-11-27.
MUNICIPALIDAD DE CAHABON, ALTA VERAPAZ gave CASTILLO,SIERRA,,ARIEL,ERNESTO 1 award: 0 without a competition, 1 after a competition with a single bid. First 2025-12-18, latest 2025-12-18.
MUNICIPALIDAD DE SAN CRISTÓBAL VERAPAZ, ALTA VERAPAZ gave CASTILLO,SIERRA,,ARIEL,ERNESTO 1 award: 0 without a competition, 1 after a competition with a single bid. First 2026-01-28, latest 2026-01-28.
| Date | Buyer | How | Stated reason |
|---|---|---|---|
| 2026-01-28 | MUNICIPALIDAD DE SAN CRISTÓBAL VERAPAZ, ALTA VERAPAZ ocds-xqjsxa-29142474 | Single bid open | Compra Directa con Oferta Electrónica (Art. 43 LCE Inciso b) |
| 2025-12-18 | MUNICIPALIDAD DE CAHABON, ALTA VERAPAZ ocds-xqjsxa-28803949 | Single bid open | Compra Directa con Oferta Electrónica (Art. 43 LCE Inciso b) |
| 2025-11-27 | MUNICIPALIDAD DE SAN JUAN CHAMELCO, ALTA VERAPAZ ocds-xqjsxa-28594738 | Single bid open | Compra Directa con Oferta Electrónica (Art. 43 LCE Inciso b) |
| 2025-10-22 | MUNICIPALIDAD DE SAN JUAN CHAMELCO, ALTA VERAPAZ ocds-xqjsxa-28137299 | Single bid open | Compra Directa con Oferta Electrónica (Art. 43 LCE Inciso b) |
| 2024-12-19 | MUNICIPALIDAD DE SAYAXCHE, PETÉN ocds-xqjsxa-25007483 | Single bid open | Compra Directa con Oferta Electrónica (Art. 43 LCE Inciso b) |
| 2024-05-13 | MUNICIPALIDAD DE SAYAXCHE, PETÉN ocds-xqjsxa-22913629 | Single bid open | Compra Directa con Oferta Electrónica (Art. 43 LCE Inciso b) |
Every uncontested award in Guatemala · All countries
Source: contract awards published by the Ministry of Public Finance of Guatemala in the Open Contracting Data Standard (data.open-contracting.org), licensed under CC BY 4.0; awards from January 2016 to 30 September 2026, accessed 15 October 2026. 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.