SIGMA-ALDRICH, INC: public contracts won without a rival in United States: 30 uncontested awards; 67% of its awards; 20 without a competition; 10 single bid.
Assay record ASY-US-0I5QM711MR · Cite as: Assay Systems, “SIGMA-ALDRICH, INC: public contracts won without a rival in United States”, https://assay-systems.com/register/us/uncontested/s/sigma-aldrich-inc/
SIGMA-ALDRICH, INC won 30 of its 45 public contract awards in United States without a rival from 2023-10-23 to 2026-09-18, worth $583K: 20 without a competition and 10 after a competition that drew a single bid. 9 buyers awarded it without a rival, the largest National Institutes of Health with 15.
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.
National Institutes of Health gave SIGMA-ALDRICH, INC 26 awards: 11 without a competition, 4 after a competition with a single bid. First 2023-11-01, latest 2026-09-18.
Defense Logistics Agency gave SIGMA-ALDRICH, INC 3 awards: 3 without a competition, 0 after a competition with a single bid. First 2024-06-07, latest 2026-04-21.
Food and Drug Administration gave SIGMA-ALDRICH, INC 2 awards: 1 without a competition, 1 after a competition with a single bid. First 2025-08-12, latest 2026-09-15.
Centers for Disease Control and Prevention gave SIGMA-ALDRICH, INC 2 awards: 1 without a competition, 1 after a competition with a single bid. First 2024-09-12, latest 2026-06-16.
Office of the Assistant Secretary for Administration gave SIGMA-ALDRICH, INC 2 awards: 0 without a competition, 2 after a competition with a single bid. First 2023-10-24, latest 2023-12-14.
Department of the Navy gave SIGMA-ALDRICH, INC 2 awards: 2 without a competition, 0 after a competition with a single bid. First 2023-10-23, latest 2024-05-21.
Environmental Protection Agency gave SIGMA-ALDRICH, INC 2 awards: 1 without a competition, 1 after a competition with a single bid. First 2025-06-18, latest 2026-06-08.
Office of the Assistant Secretary for Financial Resources gave SIGMA-ALDRICH, INC 1 award: 0 without a competition, 1 after a competition with a single bid. First 2024-09-05, latest 2024-09-05.
Department of Veterans Affairs gave SIGMA-ALDRICH, INC 1 award: 1 without a competition, 0 after a competition with a single bid. First 2024-08-01, latest 2024-08-01.
| Date | Buyer | How | Value | Stated reason |
|---|---|---|---|---|
| 2026-09-18 | National Institutes of Health 75N98026P01704 | Single bid COMPETED UNDER SAP | $28.0K | — |
| 2026-09-15 | Food and Drug Administration 75F40126P00320 | No competition NOT COMPETED | $26.5K | ONLY ONE SOURCE-OTHER (FAR 6.302-1 OTHER) |
| 2026-09-10 | National Institutes of Health 75N98026P01592 | No competition NOT COMPETED UNDER SAP | $59.8K | SAP NON-COMPETITION (FAR 13) |
| 2026-07-22 | National Institutes of Health 75N94021P00690 | No competition NOT COMPETED UNDER SAP | $-556 | SAP NON-COMPETITION (FAR 13) |
| 2026-06-16 | Centers for Disease Control and Prevention 75D30126P21162 | No competition NOT COMPETED UNDER SAP | $758 | LESS THAN OR EQUAL TO THE MICRO-PURCHASE THRESHOLD |
| 2026-06-08 | Environmental Protection Agency 68HERF26P0088 | Single bid COMPETED UNDER SAP | $34.4K | — |
Every uncontested award in United States · All countries · SIGMA-ALDRICH, INC in the register
Source: USAspending.gov prime award transactions (contracts). Awards are matched to their buyer and supplier as published. Updated 17 October 2026.