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KEYSTONE ADVISORS LLC

UEI C3G1S3D7NH81CAGE 5CAW7Company website ↗

Active
Woman Owned BusinessJoint Venture Women Owned Small BusinessWoman Owned Small Business

Overview

Legal name
KEYSTONE ADVISORS LLC
Registered location
SOUTH HOLLAND, IL, USA
Website
Company website ↗
Primary NAICS
541211 — Offices of Certified Public Accountants
Latest award activity
Jul 30, 2026
Read company summary

KEYSTONE ADVISORS LLC is associated with UEI C3G1S3D7NH81 and CAGE 5CAW7 in public federal records. AcornBids currently links 8 prime awards totaling $8.7M in obligations to this entity. Its largest recorded federal customer by obligations is Department of Justice. Its recorded federal awards include work classified as Other Accounting Services; Temporary Help Services. These categories describe the loaded award records, not a complete list of company capabilities. Its primary SAM.gov NAICS is 541211 (Offices of Certified Public Accountants). Its public SAM.gov registration lists SOUTH HOLLAND, IL, USA.

At a glance

Lifetime prime obligations$8.7M
Prime awards8
Awards with future end dates1
Top-agency concentration77.0%

Prime contract obligations across loaded award records. Obligations are not revenue or contract ceilings. Summary updated Oct 7, 2026. Refresh pending; these totals may be out of date.

Business information

Public SAM.gov registration details.

Legal name
KEYSTONE ADVISORS LLC
UEI
C3G1S3D7NH81
CAGE
5CAW7
Registered address
16000 VAN DRUNEN RD, SOUTH HOLLAND, IL, 60473, USA
Registration status
Active
Primary NAICS
541211 — Offices of Certified Public Accountants
SAM activation
Mar 31, 2026
Initial registration
Mar 28, 2026
Entity start
Jan 1, 2012
SAM updated
Mar 31, 2026
Registration expires
Mar 28, 2027
Fiscal year end
Dec 31
Place of incorporation
IL, USA

View SAM.gov source

Research brief

Source facts

  • Loaded prime-award records link 8 awards and $8,674,779 in reported obligations to this legal entity. Source
  • Recorded awards include Other Accounting Services (NAICS 541219); this classification is not proof of every company capability. Source
  • An example award describes: AUDIT LIAISON SUPPORT FOR ACCOUNTING AND TECHNOLOGY SECTION Source

Federal award analysis

Net transaction obligations by federal fiscal period.

Selected transaction obligations$6.2M
Prime contracts
$689.2KFY2022$2.3MFY2023$1.9MFY2024$787.4KFY2025$449.8KFY2026

Reported transaction obligations by federal fiscal period; includes deobligations. Missing transactions are not estimated. Coverage: 8 of 8 selected awards. Select a period to explore its awards.

Explore funding & geography →View quarterly funding

Funding change

Dated, valued transaction obligations in equal-length adjacent periods; missing records are unknown. Default: last completed federal fiscal year. Percentage is unavailable when the prior period has no positive reported obligations.

MeasureReported value
Current periodOct 1, 2025 – Sep 30, 2026
Current obligations$449.8K
Prior periodOct 1, 2024 – Sep 30, 2025
Prior obligations$787.4K
Change$-337.6K
Growth-42.9%

Where the work is performed

AKMEVTNHWAIDMTNDMNWIMINYMAORNVWYSDIAILINOHPANJCTRICAUTCONEMOKYWVVAMDDEAZNMKSARTNNCSCDCOKLAMSALGAHITXFL

State tile map; darker tiles have larger absolute net obligations. Outlined tiles indicate net deobligations. Unshaded tiles have no reported transactions in this selection. Other locations appear in the table.

Agencies
CategoryPeriod obligationsAwards
Department of Justice$6.2M6
General Services Administration$25.2K2
Offices
CategoryPeriod obligationsAwards
FBI-JEH$6.1M2
HEADQUATERS$119.1K3
PBS R5 ACQUISITION MANAGEMENT DIVISION$47.0K1
U.S. ATTORNEYS OFFICE-MS(S) (USA43)$-21.8K1
PBS R10 SERVICES ACQUISITIONS BRANCH$-21.8K1
Naics
CategoryPeriod obligationsAwards
541219 — Other Accounting Services$6.1M7
561320 — Temporary Help Services$47.0K1
Psc
CategoryPeriod obligationsAwards
R699 — Other Administrative Support Services$3.4M3
R499 — Other Professional Services$2.7M1
R703 — Accounting Services (NOTE: New code created for Financial Services See R710 below)$97.3K4
Vehicles
CategoryPeriod obligationsAwards
15F06722A0000177$6.1M2
15DDHQ23A00000026$119.1K3
Unclassified$47.0K1
GS23F0005X$-21.8K1
47PL0222A0002$-21.8K1
States
CategoryPeriod obligationsAwards
IL$6.2M7
WA$-21.8K1
Set Asides
CategoryPeriod obligationsAwards
SMALL BUSINESS SET ASIDE - TOTAL$6.0M3
Unclassified$97.3K4
HUBZONE SOLE SOURCE$47.0K1

Recent federal awards

Prime contract awards. Select an award to review its history and source evidence.

Award / descriptionAwarding agencyObligationsStart dateEnd date
15F06722F0001707AUDIT LIAISON SUPPORT FOR ACCOUNTING AND TECHNOLOGY SECTIONDepartment of Justice$2.7MSep 9, 2022Sep 29, 2027
15F06722F0001735SERVICESDepartment of Justice$3.4MSep 30, 2022Dec 29, 2025
47PL0222F0020THIS BPA CALL IS TO FUND THE BASE YEAR FOR THE NEW FINANCIAL ANALYST OCFO SUPPORT SERVICE CONTRACT OFF OF BPA # 47PL0222A0002General Services Administration$626.8KJan 1, 2022Dec 30, 2024
15DDHQ25F00000129TITLE: AGEO ACCOUNTING SERVICES REQUESTOR: JOSEPH E PEGUES REF AWARD/BPA: 15DDHQ23A00000026 POP DATES: 02/01/2025 TO 04/30/2025Department of Justice$135.6KFeb 1, 2025Aug 20, 2025
15DDHQ24F00000767SENIOR PRINCIPAL ACCOUNTANT POP 9/1/2024 - 1/31/2025 BPA 15DDHQ23A00000026Department of Justice$99.7KSep 1, 2024Jan 31, 2025
47PF0019C0099CONTRACT 47PF0019C0099: REGION 5 ADMINISTRATIVE SUPPORT SERVICES AT THE KLUCZYNSKI FEDERAL BUILDING, 230 S DEARBORN ST., CHICAGO, IL, IN THE TOTAL AMOUNT OF $1,223,286.48.General Services Administration$1.4MSep 24, 2019Feb 28, 2025
15DDHQ23F00001077SENIOR PRINCIPAL ACCOUNT CPA SERVICES FOR AGEO'S 15DDHQ23A00000026Department of Justice$234.6KSep 1, 2023Aug 30, 2024
15JA4320F00000012INFORMATION RECEPTIONIST SERVICES FOR USAO-MSS, GULFPORT OFFICEDepartment of Justice$143.0KJul 15, 2020Jul 14, 2024
Explore, filter and export all awards →SubcontractsGrants & subgrants

Upcoming positioning windows

Modeled recompete windows are estimates, not announced solicitations or guarantees.

Registration, certifications & contacts

Registration evidenceDate
SAM updatedMar 31, 2026
Source loadedSep 27, 2026
Initial registrationMar 28, 2026
Entity startJan 1, 2012
SBA Certified Hub Zone FirmExpiration not reported

Expires Not available

SAM public SBA certification fields

Registration classifications: Woman Owned Business, Joint Venture Women Owned Small Business, Woman Owned Small Business, SBA Certified Hub Zone Firm. These are separate from the reported certificates above.

IndustryReported size status
541211 — Offices of Certified Public AccountantsNot reported
541214 — Payroll ServicesNot reported
541219 — Other Accounting ServicesNot reported
541330 — Engineering ServicesNot reported
541512 — Computer Systems Design ServicesNot reported
541611 — Administrative Management and General Management Consulting ServicesNot reported
541612 — Human Resources Consulting ServicesNot reported
541618 — Other Management Consulting ServicesNot reported
561110 — Office Administrative ServicesNot reported
561210 — Facilities Support ServicesNot reported
561320 — Temporary Help ServicesNot reported
ContactRolePublished contact methodsEvidenceSource date
KEITH HASTYGovernment businessContact method not publishedSAM registrationNot available
JAZMINE HASTYAlternate government businessContact method not publishedSAM registrationNot available
DIANE HASTYElectronic businessContact method not publishedSAM registrationNot available
DIANE HASTYAlternate electronic businessContact method not publishedSAM registrationNot available
Diane HastyContractor contract managerDiane@keystoneadv.comSourceOct 1, 2026
Keith HastyContractor program managerkeith@keystoneadv.comSourceOct 1, 2026
Diane HastyContractor contract managerDiane@keystoneadv.comSourceOct 1, 2026
Keith HastyContractor program managerkeith@keystoneadv.comSourceOct 1, 2026
Diane HastyContractor contract managerDiane@keystoneadv.comSourceOct 1, 2026
Keith HastyContractor program managerkeith@keystoneadv.comSourceOct 1, 2026
Registered industries
  • 541211 — Offices of Certified Public Accountants
  • 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
  • 561210 — Facilities Support Services
  • 561320 — Temporary Help Services
Registered products and services
  • B547 — Accounting/Financial Management Studies
  • R406 — Policy Review/Development Services
  • R408 — Program Management/Support Services
  • R410 — SUPPORT- PROFESSIONAL: PROGRAM EVALUATION/REVIEW/DEVELOPMENT
  • R499 — Other Professional Services
  • R699 — Other Administrative Support Services
  • R703 — Accounting Services (NOTE: New code created for Financial Services See R710 below)
  • R704 — Auditing Services
  • R705 — Debt Collection Services
  • R707 — Contract, Procurement, and Acquisition Support Services
  • R710 — Financial Services (includes credit card services and any other financial services. See revision to description for code R703 above)
  • R799 — Other Management Support Services

Registration classifications and published certificates do not by themselves establish eligibility for a particular solicitation. View SAM source

Teaming relationships

Disclosed relationships only. Missing records do not establish that a contractor has no partners. Ambiguous parent award identifiers are excluded.

RelationshipReported partiesDatesEvidence
mentor protegeC3G1S3D7NH81 (mentor) / B & H Engineering Concepts, Inc.Mar 4, 2025 – Not availableSBA active mentor-protégé list

Contract vehicle holdings

Reported holders; a parent award identifier alone is not proof of a current vehicle seat.

VehicleReported statusOrdering endsEvidence
OASIS+HZ — 47QRCA24DH106activeNot availableSource
OASIS+SB — 47QRCA25DS853activeNot availableSource
OASIS+WO — 47QRCA24DW310activeNot availableSource

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Data coverage and methodology

Sources: SAM.gov registration, USAspending awards and transactions, and linked supporting records. Prime contract obligations, IDV ceilings and assistance amounts are kept separate. Missing records are not zero activity. Company claims are labeled separately. Recompete signals are rule-based scores out of 100. Positioning windows are AcornBids estimates.

Disclosed relationships only. Missing records do not establish that a contractor has no partners. Ambiguous parent award identifiers are excluded.

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