Audit Reports 2008-2025 are available through the Commission Meetings Portal (Search for Audit Meetings)
2025 Audit Reports
Capital Audits
- 2023 Airfield Projects - Contract 2 ADA Accessible PDF
Information Technology
- Closed Network System - Satellite Transit System (STS) (AVM)1
Limited Contract Compliance
- Concourse Concessions, LLC ADA Accessible PDF
- BF Foods, LLC ADA Accessible PDF
- Gate Gourmet, Inc. ADA Accessible PDF
Operational Audits
- Banking/Fraud Controls ADA Accessible PDF
- Consultants/Contractor Management ADA Accessible PDF
1 This information technology audit is security sensitive and is not discussed in public meetings; all or part of the audit report may be exempt from public records disclosure under RCW 42.56.420.
2024 Audit Reports
Capital Audits
- Concourse A Building Expansion for Lounges-Delta TRA ADA Accessible PDF
- Parking Garage Elevator Modernization Project ADA Accessible PDF
- Terminal 117 Sites 23-25 Restoration Project Close Out ADA Accessible PDF
- TSE Phase 2 Bollard and ADA Ramps ADA Accessible PDF
Information Technology
- Payment Card Industry (PCI) QSA Assessment Results ADA Accessible PDF
- Application Software Security1
Limited Contract Compliance
- 1915 KCHouse Concepts SeaTac, LLC ADA Accessible PDF
- Pallino SeaTac, LLC — Attestation Engagement ADA Accessible PDF
- Seattle Chocolate Company ADA Accessible PDF
- Seattle Food Partners, LLC ADA Accessible PDF
- Stellar Bambuza SEA, LLC ADA Accessible PDF
Operational Audits
- AFFF Transition ADA Accessible PDF
- Delegation of Authority ADA Accessible PDF
- Equity Policy Directive Compliance ADA Accessible PDF
- Partner in Employment ADA Accessible PDF
- Time Approval Controls ADA Accessible PDF
- Utilities Management ADA Accessible PDF
1 This information technology audit is security sensitive and is not discussed in public meetings; all or part of the audit report may be exempt from public records disclosure under RCW 42.56.420.
2023 Audit Reports
Operational
- Airport Parking Garage ADA Accessible PDF
- Fishermen's Terminal ADA Accessible PDF
- Police Department Seizures and Evidence Room ADA Accessible PDF
- Port-Wide Payroll Controls ADA Accessible PDF
- Social and Environmental Reporting ADA Accessible PDF
Capital
- C Course Expansion Project (Pre-Construction) ADA Accessible PDF
- Main Terminal Low Voltage System Upgrade Project (Pre-Construction) ADA Accessible PDF
- Terminal 5 Berth Modernization Project ADA Accessible PDF
- Terminal 117 Sites 23-25 Restoration Project ADA Accessible PDF
- Supply Chain Disruption Management ADA Accessible PDF
Information Technology
- Security Awareness and Skills Training—Confidential Security Sensitive1
- Email and Web Browser Protections (ICT and AVM)1
- Network Infrastructure Management (AVM)1
Limited Contract Compliance
- ATZ, Inc. dba Doug Fox Parking ADA Accessible PDF
- Louis Dreyfus Company Washington LLC ADA Accessible PDF
- Seattle Air Venture ADA Accessible PDF
1 This information technology audit is security sensitive and is not discussed in public meetings; all or part of the audit report may be exempt from public records disclosure under RCW 42.56.420.
2022 Audit Reports
Operational
- ACH Payment Fraud TEXT Accessible PDF
- Emergency Procurement TEXT Accessible PDF
- Federal Grant Administration - Aviation Division TEXT Accessible PDF
- South King County Community Impact Fund TEXT Accessible PDF
Capital
- Interim Westside Fire Station TEXT Accessible PDF
- International Aviation Facility Audit Transmittal Letter Audit Report Management Response
- North Satellite Renovation and Expansion Report TEXT Accessible PDF
- North Satellite Renovation and Expansion—Independent Audit Report TEXT Accessible PDF
- South Satellite Infrastructure Upgrade Project TEXT Accessible PDF
Limited Contract Compliance
- Avis Budget Car Rental LLC TEXT Accessible PDF
- In-Ter-Space Services Inc DBA Clear Channel Airports TEXT Accessible PDF
- The Hertz Corporation TEXT Accessible PDF
Information Technology
- Account Management (ICT)—Confidential Security Sensitive1
- Account Management (Aviation Maintenance)—Confidential Security Sensitive1
- Audit Log Management (ICT)—Confidential Security Sensitive1
- Audit Log Management (Aviation Management)—Confidential Security Sensitive1
- Security Incident Response Management (ICT and Aviation Management) TEXT Accessible PDF
- T2 Airport Garage Parking System Replacement—Confidential Security Sensitive1
1 This information technology audit is security sensitive and is not discussed in public meetings; all or part of the audit report may be exempt from public records disclosure under RCW 42.56.420.
2021 Audit Reports
Operational
- Art Program TEXT Accessible PDF
- Capitalization of Assets TEXT Accessible PDF
- Noise Monitor Data Accuracy TEXT Accessible PDF
- Rent and Concession Deferral Recovery TEXT Accessible PDF
- South King County Fund TEXT Accessible PDF
- TNC (Lyft, Inc. & Rasier, LLC.) TEXT Accessible PDF
Capital
- Baggage Optimization Project Phase 2 TEXT Accessible PDF
- Cost of Delay Memo TEXT Accessible PDF
- Central Terminal Infrastructure Upgrade Project (Construction and Closeout Phases) TEXT Accessible PDF
- North Terminal Utilities Upgrade Project Phase 1 TEXT Accessible PDF
- Restroom Renovations Phase 3 Prototype Project TEXT Accessible PDF
Limited Contract Compliance
- Avis Budget Car Rentals TEXT Accessible PDF
- Dilettante Chocolates, Inc. TEXT Accessible PDF
- Fruit & Flower LLC d/b/a Floret TEXT Accessible PDF
- Lenlyn Limited TEXT Accessible PDF
- Seattle-Tacoma International Limousine Association (STILA) TEXT Accessible PDF
Information Technology
- Biometrics—Confidential Security Sensitive1
- Biometrics 2 TEXT Accessible PDF
- Data Recovery—Confidential Security Sensitive1
- Continuous Vulnerability Management—Confidential Security Sensitive1
- Malware Defenses—Confidential Security Sensitive1
- Payment Card Industry (PCI) Compliance—Confidential Security Sensitive1
1 This information technology audit is security sensitive and is not discussed in public meetings; all or part of the audit report may be exempt from public records disclosure under RCW 42.56.420.
2 This audit report has been redacted for public viewing.
2020 Audit Reports
Operational
- Cash Controls TEXT Accessible PDF
- Delegation of Authority TEXT Accessible PDF
- Equipment Acquisition, Monitoring and Disposal TEXT Accessible PDF
- Ground Transportation - Taxi Cabs TEXT Accessible PDF
- Public Health Emergency Leave Program TEXT Accessible PDF
Capital
- AOA Perimeter Fence Line Standards Project TEXT Accessible PDF
- Central Terminal Infrastructure Upgrade Project (Bid and Design Phases) TEXT Accessible PDF
- Service Tunnel Renewal/Replacement Project TEXT Accessible PDF
Limited Contract Compliance
- Concourse Concessions, LLC TEXT Accessible PDF
- E-Z Rent A Car, Incorporated TEXT Accessible PDF
- Fireworks Galleries, LLC TEXT Accessible PDF
- McDonald's USA, LLC TEXT Accessible PDF
- Qdoba Restaurant Corporation TEXT Accessible PDF
Information Technology
- Criminal Justice Information Systems (CJIS)—Confidential Security Sensitive1
- Inventory & Control of Software Assets—Confidential Security Sensitive1
- Malware Defenses ICT—Confidential Security Sensitive1
- Network Password Management—Confidential Security Sensitive1
- Payment Card Industry (PCI)-Qualified Security Assessor TEXT Accessible PDF
- Secure Configuration for Hardware and Software on Mobile Devices, Laptops, Workstations and Servers-Confidential Security Sensitive1
1 This information technology audit is security sensitive and is not discussed in public meetings; all or part of the audit report may be exempt from public records disclosure under RCW 42.56.420.
2019 Audit Reports
Operational
- Airport Employee Access—Confidential Security Sensitive1
- Architectural & Engineering Consultant Rates TEXT Accessible PDF
- Diversity In Contracting TEXT Accessible PDF
- Marine Maintenance Shop TEXT Accessible PDF
Capital
- Checked Baggage Optimization Project (Phase 1) TEXT Accessible PDF
- Concourse D Hardstand Holdroom TEXT Accessible PDF
- Noise Insulation Program TEXT Accessible PDF
- Shilshole Bay Marina Customer Facilities Project TEXT Accessible PDF
Limited Contract Compliance
- Airport Tenant Marketing Program TEXT Accessible PDF
- Anton Airfood of Seattle, Inc. TEXT Accessible PDF
- EAN Holdings, LLC TEXT Accessible PDF
- Mad Anthony's, Inc. TEXT Accessible PDF
- Sixt Rent A Car TEXT Accessible PDF
Information Technology
- Closed Network System Security—Confidential Security Sensitive1
- HIPAA Privacy and Breach Compliance TEXT Accessible PDF
- HIPAA Security Compliance—Confidential Security Sensitive1
- Inventory and Control of Hardware Assets—Confidential Security Sensitive1
- Payment Card Industry (PCI)—Confidential Security Sensitive1
- Security of Personal Identifiable Information—Confidential Security Sensitive1
1 This information technology audit is security sensitive and is not discussed in public meetings; all or part of the audit report may be exempt from public records disclosure under RCW 42.56.420.
2018 Audit Reports
Operational
- Cash Controls—Sea-Tac Parking Garage TEXT Accessible PDF
- Cruise-Related Investments TEXT Accessible PDF
- Delta Lounge—Tenant Reimbursement Agreement TEXT Accessible PDF
- Disbursements/Accounts Payable TEXT Accessible PDF
- Employee Parking—Airport Garage TEXT Accessible PDF
- Fishing and Commercial Operations—Maritime TEXT Accessible PDF
- Pier 66—Norwegian Tenant Improvement Partnership TEXT Accessible PDF
- Sea-Tac Utilities TEXT Accessible PDF
- Transportation Network Companies TEXT Accessible PDF
- TNC Re-match TEXT Accessible PDF
- Westside Fire Station TEXT Accessible PDF
Capital
- IAF (International Arrivals Facility) TEXT Accessible PDF
- North Satellite (NSAT) Renovation and Expansion Project TEXT Accessible PDF
Limited Contract Compliance
- Beecher's Handmade Cheese TEXT Accessible PDF
- CMC Investments, Inc. dba Dollar Rent-A-Car TEXT Accessible PDF
- Fox Rent-A-Car, Inc. TEXT Accessible PDF
- Host International, Inc. TEXT Accessible PDF
- Sky Chefs, Inc. TEXT Accessible PDF
- DTG Operations, Inc. dba Thrifty Rent-A-Car TEXT Accessible PDF
Information Technology
- Aviation Maintenance and Facilities And Infrastructure Data Centers TEXT Accessible PDF
- Aviation Maintenance—IT Change Management and Patch Management – Confidential Security Sensitive1
- T2 ParkingSoft System—Confidential Security Sensitive1
1 This information technology audit is security sensitive and is not discussed in public meetings; all or part of the audit report may be exempt from public records disclosure under RCW 42.56.420.
