RIEDER Y CIA. SACI: public contracts won without a rival in Paraguay

Updated 17 October 2026 · 2016-01-12 to 2026-06-10 · all of Paraguay · record in the register

RIEDER Y CIA. SACI: public contracts won without a rival in Paraguay: 144 uncontested awards; 46% of its awards; 2 without a competition; 142 single bid.

Assay record ASY-PY-07WY7EI0ZS · Cite as: Assay Systems, “RIEDER Y CIA. SACI: public contracts won without a rival in Paraguay”, https://assay-systems.com/register/py/uncontested/s/rieder-y-cia-saci/

1
144uncontested awards
46%of its awards
2without a competition
142single bid

RIEDER Y CIA. SACI won 144 of its 315 public contract awards in Paraguay without a rival from 2016-01-12 to 2026-06-10: 2 without a competition and 142 after a competition that drew a single bid. 60 buyers awarded it without a rival, the largest Municipalidad de Tomás Romero Pereira with 14.

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.

Buyers that awarded it without a rival

Municipalidad de Tomás Romero Pereira14uncontested16awards88%of these awards

Municipalidad de Tomás Romero Pereira gave RIEDER Y CIA. SACI 16 awards: 0 without a competition, 14 after a competition with a single bid. First 2016-12-07, latest 2022-02-07.

Municipalidad de Itaugua13uncontested14awards93%of these awards

Municipalidad de Itaugua gave RIEDER Y CIA. SACI 14 awards: 0 without a competition, 13 after a competition with a single bid. First 2016-03-28, latest 2025-04-14.

Presidencia de la República9uncontested17awards53%of these awards

Presidencia de la República gave RIEDER Y CIA. SACI 17 awards: 0 without a competition, 9 after a competition with a single bid. First 2016-01-29, latest 2026-04-22.

Industria Nacional del Cemento (INC)8uncontested13awards62%of these awards

Industria Nacional del Cemento (INC) gave RIEDER Y CIA. SACI 13 awards: 0 without a competition, 8 after a competition with a single bid. First 2016-12-07, latest 2025-11-06.

Banco Central del Paraguay (BCP)6uncontested12awards50%of these awards

Banco Central del Paraguay (BCP) gave RIEDER Y CIA. SACI 12 awards: 0 without a competition, 6 after a competition with a single bid. First 2016-01-20, latest 2025-11-07.

Corte Suprema de Justicia (CSJ)6uncontested11awards55%of these awards

Corte Suprema de Justicia (CSJ) gave RIEDER Y CIA. SACI 11 awards: 0 without a competition, 6 after a competition with a single bid. First 2016-05-04, latest 2024-09-19.

Congreso Nacional (C.N.)5uncontested16awards31%of these awards

Congreso Nacional (C.N.) gave RIEDER Y CIA. SACI 16 awards: 0 without a competition, 5 after a competition with a single bid. First 2016-01-12, latest 2025-10-15.

Administración Nacional de Electricidad (ANDE)4uncontested27awards15%of these awards

Administración Nacional de Electricidad (ANDE) gave RIEDER Y CIA. SACI 27 awards: 0 without a competition, 4 after a competition with a single bid. First 2016-08-04, latest 2024-11-25.

Show all 60
Municipalidad de Fram4uncontested5awards80%of these awards

Municipalidad de Fram gave RIEDER Y CIA. SACI 5 awards: 0 without a competition, 4 after a competition with a single bid. First 2016-03-29, latest 2026-03-05.

Universidad Nacional de Asunción (UNA)4uncontested15awards27%of these awards

Universidad Nacional de Asunción (UNA) gave RIEDER Y CIA. SACI 15 awards: 0 without a competition, 4 after a competition with a single bid. First 2016-08-26, latest 2026-04-14.

Defensoría del Pueblo4uncontested6awards67%of these awards

Defensoría del Pueblo gave RIEDER Y CIA. SACI 6 awards: 0 without a competition, 4 after a competition with a single bid. First 2016-05-31, latest 2026-04-13.

Ministerio del Interior (M.I.)3uncontested3awards100%of these awards

Ministerio del Interior (M.I.) gave RIEDER Y CIA. SACI 3 awards: 0 without a competition, 3 after a competition with a single bid. First 2016-09-22, latest 2022-05-24.

Municipalidad de Santa Fé del Paraná3uncontested4awards75%of these awards

Municipalidad de Santa Fé del Paraná gave RIEDER Y CIA. SACI 4 awards: 0 without a competition, 3 after a competition with a single bid. First 2017-08-08, latest 2022-07-26.

Gobierno Departamental de Boquerón2uncontested4awards50%of these awards

Gobierno Departamental de Boquerón gave RIEDER Y CIA. SACI 4 awards: 0 without a competition, 2 after a competition with a single bid. First 2016-05-02, latest 2022-10-12.

Compañía Paraguaya de Comunicaciones (COPACO)2uncontested10awards20%of these awards

Compañía Paraguaya de Comunicaciones (COPACO) gave RIEDER Y CIA. SACI 10 awards: 0 without a competition, 2 after a competition with a single bid. First 2016-06-02, latest 2024-05-07.

Municipalidad de Puerto Pinasco2uncontested2awards100%of these awards

Municipalidad de Puerto Pinasco gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 2 after a competition with a single bid. First 2016-09-29, latest 2021-10-15.

Municipalidad de Boquerón2uncontested2awards100%of these awards

Municipalidad de Boquerón gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 2 after a competition with a single bid. First 2023-10-31, latest 2026-06-10.

Municipalidad de Paso Barreto2uncontested3awards67%of these awards

Municipalidad de Paso Barreto gave RIEDER Y CIA. SACI 3 awards: 0 without a competition, 2 after a competition with a single bid. First 2016-05-11, latest 2020-11-23.

Municipalidad de Itakyry2uncontested3awards67%of these awards

Municipalidad de Itakyry gave RIEDER Y CIA. SACI 3 awards: 0 without a competition, 2 after a competition with a single bid. First 2016-08-04, latest 2024-10-25.

Ministerio de Salud Pública y Bienestar Social (MSPBS)2uncontested2awards100%of these awards

Ministerio de Salud Pública y Bienestar Social (MSPBS) gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 2 after a competition with a single bid. First 2019-09-09, latest 2024-11-20.

Gobierno Departamental de Caazapá (CAAZAPÁ)2uncontested2awards100%of these awards

Gobierno Departamental de Caazapá (CAAZAPÁ) gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 2 after a competition with a single bid. First 2017-10-26, latest 2018-06-05.

Municipalidad de San Cosme y Damián2uncontested2awards100%of these awards

Municipalidad de San Cosme y Damián gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 2 after a competition with a single bid. First 2022-05-27, latest 2023-03-21.

Municipalidad de Capiatá2uncontested4awards50%of these awards

Municipalidad de Capiatá gave RIEDER Y CIA. SACI 4 awards: 0 without a competition, 2 after a competition with a single bid. First 2020-08-31, latest 2021-10-29.

Municipalidad de General Artigas2uncontested2awards100%of these awards

Municipalidad de General Artigas gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 2 after a competition with a single bid. First 2017-06-15, latest 2018-06-05.

Ministerio de Defensa Nacional (MDN)2uncontested7awards29%of these awards

Ministerio de Defensa Nacional (MDN) gave RIEDER Y CIA. SACI 7 awards: 0 without a competition, 2 after a competition with a single bid. First 2017-04-05, latest 2022-11-21.

Fondo Nacional de la Cultura y las Artes (FONDEC)2uncontested3awards67%of these awards

Fondo Nacional de la Cultura y las Artes (FONDEC) gave RIEDER Y CIA. SACI 3 awards: 0 without a competition, 2 after a competition with a single bid. First 2022-10-26, latest 2024-08-06.

Ministerio de Economía y Finanzas2uncontested4awards50%of these awards

Ministerio de Economía y Finanzas gave RIEDER Y CIA. SACI 4 awards: 0 without a competition, 2 after a competition with a single bid. First 2019-12-13, latest 2022-09-19.

Crédito Agrícola de Habilitación (CAH)1uncontested1awards100%of these awards

Crédito Agrícola de Habilitación (CAH) gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2021-10-20, latest 2021-10-20.

Instituto de Previsión Social (IPS)1uncontested3awards33%of these awards

Instituto de Previsión Social (IPS) gave RIEDER Y CIA. SACI 3 awards: 0 without a competition, 1 after a competition with a single bid. First 2017-09-12, latest 2023-04-03.

Municipalidad de Yataity del Norte1uncontested1awards100%of these awards

Municipalidad de Yataity del Norte gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2024-04-01, latest 2024-04-01.

Municipalidad de Benjamín Aceval1uncontested1awards100%of these awards

Municipalidad de Benjamín Aceval gave RIEDER Y CIA. SACI 1 award: 1 without a competition, 0 after a competition with a single bid. First 2022-02-23, latest 2022-02-23.

Municipalidad de Katuete1uncontested2awards50%of these awards

Municipalidad de Katuete gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 1 after a competition with a single bid. First 2017-06-30, latest 2023-10-06.

Municipalidad de Ypejhu1uncontested1awards100%of these awards

Municipalidad de Ypejhu gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2023-09-18, latest 2023-09-18.

Municipalidad de Puerto Adela1uncontested1awards100%of these awards

Municipalidad de Puerto Adela gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2023-10-25, latest 2023-10-25.

Municipalidad de Fulgencio Yegros1uncontested1awards100%of these awards

Municipalidad de Fulgencio Yegros gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2023-03-06, latest 2023-03-06.

Municipalidad de Desmochados1uncontested1awards100%of these awards

Municipalidad de Desmochados gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2025-08-08, latest 2025-08-08.

Municipalidad de Iturbe1uncontested1awards100%of these awards

Municipalidad de Iturbe gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2025-09-08, latest 2025-09-08.

Municipalidad de Loma Plata1uncontested2awards50%of these awards

Municipalidad de Loma Plata gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 1 after a competition with a single bid. First 2017-06-29, latest 2020-10-22.

Municipalidad de Nueva Italia1uncontested1awards100%of these awards

Municipalidad de Nueva Italia gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2025-04-21, latest 2025-04-21.

Municipalidad de Asunción1uncontested5awards20%of these awards

Municipalidad de Asunción gave RIEDER Y CIA. SACI 5 awards: 0 without a competition, 1 after a competition with a single bid. First 2017-12-14, latest 2023-12-19.

Municipalidad de Gral. Higinio Morínigo1uncontested1awards100%of these awards

Municipalidad de Gral. Higinio Morínigo gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2016-06-20, latest 2016-06-20.

Municipalidad de Mbaracayú1uncontested2awards50%of these awards

Municipalidad de Mbaracayú gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 1 after a competition with a single bid. First 2017-06-19, latest 2021-08-20.

Municipalidad de Itacurubí de las Cordilleras1uncontested1awards100%of these awards

Municipalidad de Itacurubí de las Cordilleras gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2017-05-10, latest 2017-05-10.

Municipalidad de Villa Ygatimí1uncontested1awards100%of these awards

Municipalidad de Villa Ygatimí gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2016-05-24, latest 2016-05-24.

Instituto Nacional de Tecnología, Normalización y Metrología (INTN)1uncontested2awards50%of these awards

Instituto Nacional de Tecnología, Normalización y Metrología (INTN) gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 1 after a competition with a single bid. First 2017-11-17, latest 2022-06-14.

Municipalidad de Caacupé1uncontested2awards50%of these awards

Municipalidad de Caacupé gave RIEDER Y CIA. SACI 2 awards: 1 without a competition, 0 after a competition with a single bid. First 2017-03-02, latest 2022-05-24.

Tribunal Superior de Justicia Electoral (TSJE)1uncontested1awards100%of these awards

Tribunal Superior de Justicia Electoral (TSJE) gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2016-09-14, latest 2016-09-14.

Honorable Cámara de Senadores1uncontested3awards33%of these awards

Honorable Cámara de Senadores gave RIEDER Y CIA. SACI 3 awards: 0 without a competition, 1 after a competition with a single bid. First 2021-06-30, latest 2024-10-30.

Municipalidad de San Pedro del Paraná1uncontested1awards100%of these awards

Municipalidad de San Pedro del Paraná gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2017-08-31, latest 2017-08-31.

Universidad Nacional de Canindeyu (UNICAN)1uncontested1awards100%of these awards

Universidad Nacional de Canindeyu (UNICAN) gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2016-10-06, latest 2016-10-06.

Municipalidad de Iruña1uncontested2awards50%of these awards

Municipalidad de Iruña gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 1 after a competition with a single bid. First 2018-02-20, latest 2023-05-08.

Ministerio de Tecnologías de la Información y Comunicación (MITIC)1uncontested5awards20%of these awards

Ministerio de Tecnologías de la Información y Comunicación (MITIC) gave RIEDER Y CIA. SACI 5 awards: 0 without a competition, 1 after a competition with a single bid. First 2017-09-15, latest 2025-11-20.

Municipalidad de Caazapá1uncontested3awards33%of these awards

Municipalidad de Caazapá gave RIEDER Y CIA. SACI 3 awards: 0 without a competition, 1 after a competition with a single bid. First 2022-11-16, latest 2026-04-17.

Ag. Nac. de Eval. y Acreditación de la Educación Superior (ANEAES)1uncontested4awards25%of these awards

Ag. Nac. de Eval. y Acreditación de la Educación Superior (ANEAES) gave RIEDER Y CIA. SACI 4 awards: 0 without a competition, 1 after a competition with a single bid. First 2020-11-17, latest 2025-09-22.

Universidad Politécnica Taiwán – Paraguay (UPTP)1uncontested1awards100%of these awards

Universidad Politécnica Taiwán – Paraguay (UPTP) gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2024-05-17, latest 2024-05-17.

Gobierno Departamental de Cordillera (CORDILLERA)1uncontested3awards33%of these awards

Gobierno Departamental de Cordillera (CORDILLERA) gave RIEDER Y CIA. SACI 3 awards: 0 without a competition, 1 after a competition with a single bid. First 2017-10-17, latest 2021-11-23.

Consejo de la Magistratura (C.M.)1uncontested1awards100%of these awards

Consejo de la Magistratura (C.M.) gave RIEDER Y CIA. SACI 1 award: 0 without a competition, 1 after a competition with a single bid. First 2024-02-12, latest 2024-02-12.

Jurado de Enjuiciamiento de Magistrados (JEM)1uncontested3awards33%of these awards

Jurado de Enjuiciamiento de Magistrados (JEM) gave RIEDER Y CIA. SACI 3 awards: 0 without a competition, 1 after a competition with a single bid. First 2021-06-28, latest 2024-11-04.

Ministerio de Trabajo, Empleo y Seguridad Social (MTESS)1uncontested2awards50%of these awards

Ministerio de Trabajo, Empleo y Seguridad Social (MTESS) gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 1 after a competition with a single bid. First 2024-07-30, latest 2025-10-16.

Instituto Forestal Nacional (INFONA)1uncontested2awards50%of these awards

Instituto Forestal Nacional (INFONA) gave RIEDER Y CIA. SACI 2 awards: 0 without a competition, 1 after a competition with a single bid. First 2019-04-12, latest 2021-11-24.

Lock-ins: every award in a category to this firm

Defensoría del Pueblo6awards4uncontested831category

From 2016-05-31 to 2026-04-13 every award of Defensoría del Pueblo in category 831 went to RIEDER Y CIA. SACI.

All uncontested awards of Defensoría del Pueblo

Latest awards without a rival

DateBuyerHowStated reason
2026-06-10Municipalidad de Boquerón
ocds-03ad3f-482618-1
Single bid
open
Menor cuantía nacional
2026-04-22Presidencia de la República
ocds-03ad3f-479640-1
Single bid
open
Menor cuantía nacional
2026-04-17Municipalidad de Caazapá
ocds-03ad3f-483890-1
Single bid
open
Menor cuantía nacional
2026-04-14Universidad Nacional de Asunción (UNA)
ocds-03ad3f-481006-1
Single bid
open
Menor cuantía nacional
2026-04-13Defensoría del Pueblo
ocds-03ad3f-482456-1
Single bid
open
Menor cuantía nacional
2026-03-05Municipalidad de Fram
ocds-03ad3f-480320-1
Single bid
open
Menor cuantía nacional

Every uncontested award in Paraguay · All countries · RIEDER Y CIA. SACI in the register

Source: contract awards published by the National Directorate of Public Procurement of Paraguay (DNCP) 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. It is for non-commercial use and is not part of any paid service. 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.