Quinn C. Cartheuser

Procurement contact · CONTRACTS SERVICES · Library of Congress

Email	qcart@loc.gov
Phone	2027072339
On SAM.gov notices	64 since Jul 2016 — 15 in the last 24 months
Last listed	May 2026

What they buy

NAICS	Industry	Notices
541519	Other Computer Related Services	13
513210	Software Publishers	8
541511	Custom Computer Programming Services	8
541512	Computer Systems Design Services	6
512191	Teleproduction And Other Postproduction Services	5
511210	Software Publishers	3
518210	Data Processing, Hosting, And Related Services	2
334	—	2

PSC	Product or service	Notices
D	IT AND TELECOM - INFORMATION TECHNOLOGY AND TELECOMMUNICATIONS	11
DA01	IT AND TELECOM - BUSINESS APPLICATION/APPLICATION DEVELOPMENT SUPPORT SERVICES (LABOR)	11
DF01	IT AND TELECOM - IT MANAGEMENT SUPPORT SERVICES (LABOR)	9
7A21	IT AND TELECOM - BUSINESS APPLICATION SOFTWARE (PERPETUAL LICENSE SOFTWARE)	7
DA10	IT AND TELECOM - BUSINESS APPLICATION/APPLICATION DEVELOPMENT SOFTWARE AS A SERVICE	5
DH01	IT AND TELECOM - PLATFORM SUPPORT SERVICES: DATABASE, MAINFRAME, MIDDLEWARE (LABOR)	4
7E20	IT and Telecom - End User: Help Desk;Tier 1-2,Workspace,Print,Output,Productivity Tools (HW/Perp SW)	3
D318	IT AND TELECOM- INTEGRATED HARDWARE/SOFTWARE/SERVICES SOLUTIONS, PREDOMINANTLY SERVICES	2

How they restrict competition

No set-aside stated — 54
NONE — 10

What they post

Combined Synopsis/Solicitation — 21
Solicitation — 13
Justification — 10
Special Notice — 10
Sources Sought — 9
Justification and Approval (J&A) — 1

Who won their award notices

Awardee	Award notices	Latest
Semantic Web Company GmbH Wien 1070 AUT	1	May 2026
SAJ TECHNOLOGIES LLC Mc Lean VA 22102 USA	1	Feb 2026
MAC BUSINESS SOLUTIONS, INC. Gaithersburg MD 20877 USA	1	Feb 2025
Retrieval Systems Corporation VA 22182-2622 USA	1	Sep 2022
DIGIRATI LIMITED SCOTLAND GBR	1	Sep 2022
AUDIO VISUAL PRESERVATION SOLUTIONS INC. Brooklyn NY 11232 USA	1	Sep 2022

Recent notices

Squirro Search Engine Subscription — Justification, May 2026

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Source: SAM.gov contract notices that list this contact, including SAM's fiscal-year archives from FY2015. FedSift republishes public federal procurement data and is not affiliated with the U.S. Government. Is this you? Ask us to remove this page.