Chicago Department of Aviation: Vendor Payments
as recorded by Chicago: CHICAGO DEPARTMENT OF AVIATION
Chicago Department of Aviation's five largest vendors account for 44.2% of its tracked spending.
Chicago government · state
All recorded dates
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Filter the spending flow and supplier table by payment date. Both dates are included.
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Jan 2, 2025 to Dec 31, 2025 · All recorded fiscal years
Showing 5 of 17 positive suppliers in these records.
Flow widths compare the relationships shown. Percentages use the full recorded agency total for this period: $1,046,880,892.36. Zero and net-negative relationships are excluded from positive flows.
The relationships at a glance
- Total shown
- $462,885,672.20
- Payments represented
- 252
- Suppliers shown
- 5
- Largest share of agency total
- 11.7%
Largest displayed relationship: Turner Paschen Aviation Partners. Select a flow to explore its details.
Jan 2, 2025 to Dec 31, 2025 · All recorded fiscal years. Amount and payment count cover the relationships shown; shares use the full agency total.
Chicago Department of Aviation
$462,885,672to the suppliers shownChicago Department of Aviation
$462,885,672 to the suppliers shown
- $122,314,82411.7% of agency total
- $121,981,27411.7% of agency total
- $105,189,35810.0% of agency total
- $57,097,9745.5% of agency total
- $56,302,2435.4% of agency total
This is a selection, not a full spending breakdown. Other suppliers are not included in the flow. Unpublished suppliers are not included. Coverage may be partial. Review the supplier table.
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Top vendors by total payments
Jan 2, 2025 to Dec 31, 2025 · All recorded dates
| # | Vendor | Payments | Total |
|---|---|---|---|
| 1 | Turner Paschen Aviation Partners | 87 | $122,314,824 |
| 2 | Aecom Hunt / Clayco, a Joint Venture | 61 | $121,981,274 |
| 3 | Clark-W.E. ONeil JV | 52 | $105,189,358 |
| 4 | F.H. Paschen S.N. Nielsen & Associates, LLC | 15 | $57,097,974 |
| 5 | Aor Transit | 37 | $56,302,243 |
| 6 | Skidmore,owings & Merrill LLP | 64 | $48,244,627 |
| 7 | Standard Parking Corporation 01 | 73 | $46,009,366 |
| 8 | Chicago Airlines Terminal Consortium | 112 | $44,442,605 |
| 9 | Connect Chicago Alliance JV | 450 | $38,586,120 |
| 10 | Studio Ord Inc | 173 | $34,706,918 |
| 11 | Midway Airlines' Terminal | 55 | $29,000,596 |
| 12 | Skyline Management Group O'hare | 13 | $26,736,514 |
| 13 | K-Five Construction Corp./Plote Construction Inc JV | 5 | $25,009,305 |
| 14 | HNTB Corporation | 201 | $24,766,901 |
| 15 | Rossi Contractors, Inc. | 62 | $23,297,741 |
| 16 | Delaware Cars/T.r. Harmsen Corp. J.V. | 48 | $20,321,056 |
| 39 | Rausch Infrastructure LLC | 3 | $2,561,646 |
Recent payments
| Date | Vendor | Amount | Category | Method |
|---|---|---|---|---|
| Dec 31, 2025 | H-O-H Water Technology Inc | $2,400.00 | – | – |
| Dec 31, 2025 | Unison Consulting, Inc. | $1,259.69 | – | – |
| Dec 31, 2025 | Skidmore,owings & Merrill LLP | $126,372.13 | – | – |
| Dec 31, 2025 | HNTB Corporation | $106,279.08 | – | – |
| Dec 31, 2025 | Unison Consulting, Inc. | $7,558.15 | – | – |
| Dec 31, 2025 | HNTB Corporation | $10,908.36 | – | – |
| Dec 31, 2025 | Catalyst Consulting Group Inc | $8,373.77 | – | – |
| Dec 31, 2025 | Exp U.S. Services Inc. | $76,058.29 | – | – |
| Dec 31, 2025 | Rausch Infrastructure LLC | $509,219.93 | – | – |
| Dec 31, 2025 | F.H. Paschen S.N. Nielsen & Associates, LLC | $3,014,258.31 | – | – |
| Dec 31, 2025 | HNTB Corporation | $106,279.08 | – | – |
| Dec 31, 2025 | DMJM Aviation Partners | $42,566.94 | – | – |
| Dec 31, 2025 | Russo Hardware, Inc. | $1,700.00 | – | – |
| Dec 31, 2025 | HNTB Corporation | $106,279.08 | – | – |
| Dec 31, 2025 | HNTB Corporation | $7,253.43 | – | – |
| Dec 31, 2025 | Russo Hardware, Inc. | $26,969.50 | – | – |
| Dec 31, 2025 | DMJM Aviation Partners | $1,435.34 | – | – |
| Dec 31, 2025 | Turner Paschen Aviation Partners | $293,268.06 | – | – |
| Dec 31, 2025 | H-O-H Water Technology Inc | $400.00 | – | – |
| Dec 31, 2025 | HNTB Corporation | $10,887.19 | – | – |
| Dec 31, 2025 | Russo Hardware, Inc. | $2,275.00 | – | – |
| Dec 31, 2025 | Turner Paschen Aviation Partners | $260,390.52 | – | – |
| Dec 31, 2025 | Russo Hardware, Inc. | $450.00 | – | – |
| Dec 31, 2025 | Turner Paschen Aviation Partners | $213,046.79 | – | – |
| Dec 31, 2025 | Turner Paschen Aviation Partners | $271,266.04 | – | – |
VerifiedData refreshed Sep 24, 2026 from Chicago Checkbook (data.cityofchicago.org): 266,483 payments on record, Jan 3, 2022 to Dec 31, 2025. How we verify this data