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MK

Mark Kost

Chief Financial Officer and director at HCI Cleaning Products.

ExecutiveDirector
Updated Oct 27, 2026·Latest SEC filing Feb 13, 2026·Suggest an edit

About Mark Kost

Mark Kost is a chief financial officer and director at HCI Cleaning Products.

Mark Kost first appears on SEC filings in 2015.

Experience

This experience comes from SEC filings. The years are when the filings name Mark Kost in the role, so the role may have started earlier or lasted longer.

HCI Cleaning Products, LLC
Chief Financial Officer and director
2015 – 2026 · Hollis, NH

Key Colleagues at Startups

The people Mark Kost works with at each company, as listed on that company's latest Form D.

HCI Cleaning Products, LLC · Form D, Feb 13, 2026
FC
SB
Steven Bock
Director
SP
Serafino Posa
Executive officer and director
JN

Sources

  1. SECHCI Cleaning Products, LLC Form D, filed Feb 13, 2026