Keystone Advisors LLC
South Holland, IL
- UEI
- C3G1S3D7NH81
- CAGE
- 5CAW7
- Primary NAICS
- 541211 Offices of Certified Public Accountants
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- SBA certifications
-
HUBZone Firm· CurrentWomen-Owned Small Business· Current
- Self-certified in SAM.gov
- Entity structure
- Partnership or Limited Liability Partnership
- Other NAICS codes in SAM.gov
-
- 541214 Payroll Services
- 541219 Other Accounting Services
- 541330 Engineering Services
- 541512 Computer Systems Design Services
- 541611 Administrative Management and General Management Consulting Services
- 541612 Human Resources Consulting Services
- 541618 Other Management Consulting Services
- 561110 Office Administrative Services
- SAM.gov registration date
- Physical address
- 16000 Van Drunen Rd, South Holland, IL 60473, USA
- Website
- keystoneadv.com
- Founded
- 2008
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Financials
- Diversified Financial Services
- Accounting
- SIC code
- 87 Engineering & Management Services
- Profiles
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $449,785 |
| FY2025 | $787,352 |
| FY2024 | $2,630,667 |
| FY2023 | $3,005,159 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Justice | $471,621 |
Contract vehicles
- Administrative and Professional Support Services
- Multiple Award Schedule
- OASIS+ HUBZone Small Business IDIQ
- OASIS+ WOSB IDIQ
- One Acquisition Solution for Integrated Services Plus - Total Small Business
- Seaport Next Generation
- The Professional Services Schedule
Expired vehicles (1)
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Booz Allen Hamilton Inc. | FA701422F0399 | $195,595 | |
| Booz Allen Hamilton Inc. | FA701422F0399 | $69,040 | |
| Ernst & Young LLP | GS00F290CA-15F06721A0003386 | $73,332 | |
| Kpmg LLP | SP470424F0007 | $258,500 |
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About the company
Keystone Advisors LLC is a South Holland, Illinois-based small business certified as an Economically Disadvantaged Women-Owned Small Business (EDWOSB), HUBZone firm, and Women-Owned Small Business. The company specializes in providing professional services to federal government agencies, with a primary focus on accounting, financial analysis, auditing, and administrative support. Keystone Advisors leverages its multiple small business certifications to compete for federal contracts across various agencies, demonstrating a versatile capability to support government financial and operational needs.
The company has provided a wide range of services through federal contract awards, including senior principal accountant services, financial reporting, budget execution, appropriations stewardship, audit liaison support, and information receptionist services. Notable contract awards have come from agencies such as the Drug Enforcement Administration (DEA), Federal Bureau of Investigation (FBI), U.S. Attorney's Offices, and the Department of the Army's Joint Munitions Command. Keystone Advisors has also performed specialized manufacturing tasks like foam packaging assembly and collar tube production. The firm has secured both prime and subcontractor roles, working with major consulting firms like Deloitte, KPMG, and Booz Allen Hamilton, and has received contracts with various set-aside designations, including total small business, HUBZone, and women-owned small business categories.
Keystone Advisors holds multiple significant Indefinite Delivery Contract (IDV) vehicles, most notably three OASIS+ contracts with the General Services Administration: a Total Small Business set-aside, a Women-Owned Small Business set-aside, and a HUBZone set-aside, each with a massive potential ceiling value of $999,999,999,999. Additionally, the company has a $963,355 Blanket Purchase Agreement with the DEA for independent public accountant services and a $500 million BPA with the DOJ Headquarters Division for administrative and professional support services. These IDVs allow Keystone Advisors to deliver specialized audit, accounting, budgetary, and analytical services across multiple federal agencies, with contract periods typically ranging from 5-7 years and covering domains including management advisory, technical services, research and development, and financial analysis.
SBA capabilities narrative
Keystone Advisors, LLC. (Keystone) is a Certified Public Accounting (CPA) Firm that provides a wide range Audit, Accounting and Advisory Services in the areas of Management, Organizational and Business Improvement, Financial Analysis, Audit, Audit Readiness, Budget Execution and Reporting Support, Program Management, incurred cost audit and analysis and OMB A-123 internal control reviews to both government (federal and local), manufacturing and commercial clients. We also offer staff augmentation services for both long term and short term contract and temporary staff requirements. Established in 2008, our principals have over 30 years' experience.
Quick answers
Is Keystone Advisors LLC registered in SAM.gov?
Yes. Keystone Advisors LLC's SAM.gov registration is active through March 28, 2027.
Which SBA certifications does Keystone Advisors LLC hold?
Keystone Advisors LLC holds HUBZone Firm and Women-Owned Small Business certifications from the SBA.
Which contract vehicles does Keystone Advisors LLC hold?
Keystone Advisors LLC holds a place on 8 federal contract vehicles, including Administrative and Professional Support Services, MAS and OASIS+ HUBZone Small Business IDIQ.
How much has Keystone Advisors LLC received in federal contracts?
Federal contracts obligated $787,352 to Keystone Advisors LLC in fiscal year 2025 and $6,872,964 in fiscal years 2023 through 2027.
How does Keystone Advisors LLC rank among federal contractors?
Keystone Advisors LLC ranked #62 in NAICS 541219, #79 in PSC R703 and #93 in NAICS 5412 in FY2025.
What is Keystone Advisors LLC's most recent federal award?
Keystone Advisors LLC's most recent federal contract award is Title: ageo accounting services requestor: joseph e pegues REF award/BPA: 15DDHQ23A00000026 POP dates: 02/01/2025 to… (15DDHQ25F00000129), from Drug Enforcement Administration, on February 1, 2025.
On GovTribe
See Keystone Advisors LLC's full federal record
- Federal contract awards
- IDV awards
- Contract vehicles
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
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