Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

GSA Federal Acquisition Service
Banner Home GSA Advantage
(Vendors) How to change your company information
Contract #:
Contractor: KEYSTONE ADVISORS LLC
Address: 16000 VAN DRUNEN RD
SOUTH HOLLAND, IL 60473-1242
Phone: (708)769-4131
E-Mail: keith@keystoneadv.com
Web Address: http://www.keystoneadv.com
SAM UEI: C3G1S3D7NH81
NAICS: 541612
Socio-Economic : Small Business
Women-Owned Small Business
SBA-Certified Women-Owned Small Business
SBA Certified Small Disadvantaged Business
SBA Certified HUBZone Firm
Current Option Period End Date : Sep 29, 2029
Govt. POC:
Belinda Bernard
817-978-0811
belinda.bernard@gsa.gov
 
EPLS : Contractor not found on the Excluded Parties List System
Source Title Contract
Number
Terms & Conditions / Price List Current Option Period End Date Ultimate Contract End Date Category    View Catalog
OASIS+WO
OASIS+ WOSB 47QRCA24DW310   Sep 29, 2029
50101
50102
 

Additional Contracts held by this contractor. To view more details of a contract, click the Contract Number below.
Source Title Contract
Number
Terms & Conditions / Price List Current Option Period End Date Ultimate Contract End Date Category    View Catalog
MAS
Multiple Award Schedule GS-23F-0005X Oct 21, 2025 Oct 21, 2030
541211
541214
541219
541611
OLM
OASIS+HZ
OASIS+ HUBZone 47QRCA24DH106   Sep 29, 2029
30101
30102
 
OASIS+SB
OASIS+ SB 47QRCA25DS853   Dec 18, 2029
10101
10102
 

elibrary.gsa.gov

An official website of the General Services Administration

Looking for U.S. government information and services?
Visit USA.gov