SI2 LLC — United States · Federal contract register · Supplier record: 27 contracts, all years ($41,601,633 · Mar 2018 – Dec 2025); $16.1M since January 2024 (10 contracts · 1 agency); 12th rank in the line (of 188 suppliers · 1.78%); 14 agencies never served ($79.9M on the line without SI2 LLC).
Assay record ASY-US-0B1VGOO0TY · Cite as: Assay Systems, “SI2 LLC in the USAspending register”, https://assay-systems.com/register/us/si2-llc/
27
contracts, all years
$41,601,633 · Mar 2018 – Dec 2025
$16.1M
since January 2024
10 contracts · 1 agency
12th
rank in the line
of 188 suppliers · 1.78%
14
agencies never served
$79.9M on the line without SI2 LLC
Own record by year
2019 onward
$4.4M
$669K
$11.4M
$1.7M
$5.9M
$6.6M
$9.5M
20192020202120222023202420252026
Who buys from SI2 LLC
since January 2024
1agencies
$16.1Mpaid
100.0%top buyer
Department of Veterans Affairs100.0%
$16,135,743
The line
since January 2024
$113Mline value
352contracts
15agencies
188suppliers
50.5%held by top ten
Behavioral and mental health (Q519)
$51.5M
$40.4M
$20.9M
202420252026Jan–Sep
12thof 188 suppliers
$2,006,966SI2 LLC in the line
1.78%share of the line
6.1%of $32,784,311 spent by Department of Veterans Affairs
Agencies that buy the line and never bought from SI2 LLC
14agencies
262contracts
$79,921,488since January 2024
Department of Defense69 contracts
$54,810,168
Social Security Administration46 contracts
$6,248,221
Department of Health and Human Services20 contracts
Source: USAspending.gov, U.S. Department of the Treasury, Bureau of the Fiscal Service, usaspending.gov, accessed 30 September 2026.The data is available to copy, adapt, redistribute, or otherwise use for non-commercial or for commercial purposes (USAspending.gov, Licensing); no Dun & Bradstreet data is shown.