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SKYH supplier relationships

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SKYH supplier relationship map

Sky Harbour (SKYH): a supplier network built on long-term airport leases and project finance

Sky Harbour builds, leases and manages commercial aircraft hangar campuses and monetizes through long-term ground leases and hangar rental income, supplemented by manufacturing and financing subsidiaries that support construction and working capital. The company’s growth is executed by securing airport ground leases, developing HBO (hangar, box, and office) campuses, and drawing on a mix of debt and equity financing to fund construction and liquidity. For investors, the relevant lens is landlord-like revenue coupled with project financing risk and concentrated counterparty exposure to municipal airport authorities.

Learn more about supplier and counterparty analytics at https://nullexposure.com/.

Why the partner map matters for valuation

Sky Harbour’s model is capital-intensive, with ground-lease obligations recognized as one of the company’s largest expenses and a clear reliance on municipal counterparties to grant long-term site control. Financial disclosures show ground-lease costs rose materially year-over-year, constraining free cash flow until campuses reach stabilized occupancy. The mix of balance-sheet loans, promissory notes and an ATM sales facility indicates active liquidity management: investors should read airport agreements and financing terms as primary drivers of mid-term cash flow and execution risk.

If you want the full supplier risk picture and contract-level detail, visit https://nullexposure.com/ for direct access to the underlying sourcing.

Capital partners and lending relationships that fund expansion

Sky Harbour announced multiple financing arrangements in late 2025 that underpin its development pipeline. An affiliate of Yorkville Advisors Global, LP provided a $15 million corporate holding company loan to Sky Harbour on December 9, 2025, reflecting structured credit support for runway development and campus buildouts (Markets FinancialContent, December 2025). YA II PN, Ltd. received a $15 million unsecured promissory note from a Sky Harbour subsidiary on December 8, 2025, a direct liquidity instrument disclosed in the company press release (The Globe and Mail, December 2025). Vista Bank provided a $9.5 million commercial term loan to Stratus Building Systems, Sky Harbour’s manufacturing subsidiary, to refinance existing debt on December 4, 2025 (Markets FinancialContent, December 2025). In parallel, Yorkville Securities, LLC and Yorkville Securities were added as sales agents to Sky Harbour’s ATM program late in 2025, expanding the company’s equity-distribution capability (TradingView and Markets FinancialContent, December 2025).

Takeaway: Sky Harbour funds campus rollout through a mix of affiliate loans, third-party commercial loans to subsidiaries, and expanded ATM sales agents — an execution profile that ties operating growth directly to creditor relationships.

Construction and municipal partners that deliver sites

The company’s campus strategy depends on municipal approvals and construction partners that deliver build-to-suit capacity. Sky Harbour publicly thanked local contractors including MJJ Builders and engineering partner Passero Associates in connection with an expansion at Stewart International Airport, positioning them as active construction and planning collaborators (AI Journ, March 2026). Municipal bodies play a dual role as landlord and regulator: the Port Authority of New York and New Jersey authorized a lease amendment to expand Sky Harbour’s Stewart International site from 16 to 26 acres, evidencing meaningful site control (AI Journ, March 2026). The City of Fort Worth and Fort Worth Meacham International Airport authorized ground lease agreements for an HBO campus, reflecting municipal approvals for Sky Harbour’s Texas expansion (BizWire / Markets FinancialContent, December 2025).

Constraints and what the disclosures mean for operations

  • A company filing discloses a 30-year initial ground lease at Trenton‑Mercer Airport (TTN) with a 20‑year extension option, indicating a long-term contracting posture for new campuses and multi-decade revenue visibility where assets reach stabilization.
  • Filings also document a ground lease at Bradley International (BDL) with the Connecticut Airport Authority, confirming municipal counterparties are central to site control and project economics.
  • Ground-lease payments are material to operating expense (approximately $8.6 million in 2024), signifying that lease economics are a primary determinant of profitability and cash flow timing.
  • The company uses an ATM sales facility and sales agents as a liquidity management tool, reflecting an active capital-markets posture rather than a pure bank‑loan funding strategy.
  • Overall, these constraints indicate mature contracting horizons (long-term leases), high counterparty concentration in government entities, and material expense criticality that drive valuation sensitivity to occupancy and financing costs.

A comprehensive ledger of Sky Harbour’s referenced relationships

Below is a plain-English summary of every entity cited in the recent press coverage and filings, with source context for verification.

  • Port Authority of New York and New Jersey — Authorized a lease amendment expanding Sky Harbour’s Stewart International Airport development site from 16 acres to 26 acres (AI Journ, March 2026).
  • Yorkville Advisors Global, LP — An affiliate provided a $15 million corporate holding company loan to Sky Harbour on December 9, 2025 (Markets FinancialContent, December 2025).
  • Miami Opa-Locka Executive Airport (OPF) — Listed as one of Sky Harbour’s current operating campus locations (AI Journ and Markets FinancialContent, December 2025 / March 2026).
  • Yorkville Securities, LLC — Announced as an added agent in Sky Harbour’s existing ATM program (Markets FinancialContent, December 2025).
  • San José Mineta International Airport (SJC) — Included among Sky Harbour’s operating locations (AI Journ, March 2026).
  • Seattle’s King County International Airport – Boeing Field (BFI) — Identified as an operating campus location (AI Journ and Markets FinancialContent, December 2025 / March 2026).
  • Southern California’s Camarillo Airport (CMA) — Cited as an operational campus in company materials (AI Journ, March 2026).
  • Nashville International Airport (BNA) — Listed among Sky Harbour’s campus footprint (AI Journ and Markets FinancialContent, December 2025).
  • Denver Centennial Airport (APA) — Reported as an operating campus (AI Journ and Dallas Innovates coverage, December 2025 / March 2026).
  • Fort Worth Meacham International Airport (FTW) — The City of Fort Worth authorized a ground lease for a Sky Harbour HBO campus; this will be the company’s third HBO campus in Texas (BizWire / Markets FinancialContent, December 2025).
  • City of Fort Worth — Authorized execution of ground lease agreements supporting Sky Harbour campuses at local airports (BizWire, December 2025).
  • Dallas Addison Airport (ADS) — Appears in company list of operational campuses (Markets FinancialContent, December 2025).
  • Houston’s Sugar Land Regional Airport (SGR) — Included in Sky Harbour’s operational footprint (Markets FinancialContent and AI Journ, December 2025 / March 2026).
  • New York Stewart International Airport (SWF) — Site of the acreage expansion approved by the Port Authority (AI Journ, March 2026).
  • Phoenix Deer Valley Airport (DVT) — Named as an operating campus location (AI Journ and Markets FinancialContent, December 2025).
  • Yorkville Securities — TradingView reported an amendment to the company’s sales agreement to include Yorkville Securities as a sales agent (TradingView, December 31, 2025).
  • Chicago Executive Airport (PWK) — Listed among campuses in development (AI Journ, March 2026).
  • Connecticut Bradley International Airport (BDL) — Sky Harbour disclosed a ground lease with the Connecticut Airport Authority for Bradley, and BDL is on the development pipeline list (company filing and AI Journ, fiscal disclosures / March 2026).
  • Dallas Executive Airport (RBD) — Identified as a campus in development and city approvals reported in Dallas coverage (AI Journ and Dallas Innovates, December 2025 / March 2026).
  • Dallas Love Field (DAL) — Received Dallas City Council approval for ground lease agreements enabling Sky Harbour HBO campus development (Dallas Innovates, December 2025).
  • New Jersey Trenton-Mercer Airport (TTN) — The company entered into a 30‑year TTN ground lease; the term and extension option were disclosed in filings (company filings excerpt; cited as TTN Lease).
  • New York Hudson Valley Regional Airport (POU) — Cited among development sites (AI Journ, March 2026).
  • Orlando Executive Airport (ORL) — Listed on the development pipeline (AI Journ, March 2026).
  • Portland Hillsboro Airport (HIO) — Included among campuses in development (AI Journ, March 2026).
  • Salt Lake City International Airport (SLC) — Named in the development list (AI Journ, March 2026).
  • Southern California’s Long Beach Airport (LGB) — Identified as a future campus site (AI Journ, March 2026).
  • Washington Dulles International Airport (IAD) — Listed among development campus targets (AI Journ, March 2026).
  • Vista Bank — Provided a $9.5 million commercial term loan to Stratus Building Systems (Sky Harbour’s subsidiary) to refinance existing debt (Markets FinancialContent, December 2025).
  • YA II PN, Ltd. — Received a $15 million unsecured promissory note from Sky Harbour LLC, a company subsidiary (The Globe and Mail press release, December 8, 2025).
  • Atlanta’s Peachtree‑DeKalb Airport (PDK) — Included in the company’s development pipeline (AI Journ, March 2026).
  • MJJ Builders — A construction partner thanked by Sky Harbour in the Stewart International expansion announcement (AI Journ, March 2026).
  • Passero Associates — An engineering/consulting partner acknowledged in the Stewart International release (AI Journ, March 2026).
  • Stratus Building Systems, Inc. — Sky Harbour’s wholly owned manufacturing subsidiary that closed the Vista Bank loan to refinance debt (Markets FinancialContent, December 2025).

Final assessment and next steps

Sky Harbour’s supplier and counterparty map is characterized by long-term municipal ground leases, targeted construction partners and a hybrid funding strategy combining loans to subsidiaries, promissory notes and ATM equity execution. For investors, the key risks are lease economics, municipal counterparty concentration and the timing of campus stabilization; the upside is durable, landlord-style cash flows once campuses reach occupancy.

For a deeper contract-level review or to map counterparty exposure across a portfolio, visit https://nullexposure.com/ for proprietary sourcing and supplier signals.