
From Giacomo's horse-drawn cart in 1930 to Jason's fourth-generation operation — the standard hasn't slipped once.
Giacomo arrived from Northern Italy and set out through the Bronx with a horse-drawn cart and a foot-powered grindstone. Block by block he built his territory, calling on butchers, delis, and restaurants. A culture built entirely on handshakes and honesty.

The craft from Italy — unchanged for a century.
Giacomo's son Leo took over the routes, the relationships, and the responsibility. The horse cart became a truck. The foot pedal became a motor. The personal service — showing up every time — never changed.
Robert Ambrosi was the driving force behind the company's growth and innovation, leaving a lasting impact that continues to shape the business today. With over 40 years of experience, Robert grew the client roster from 250 accounts to over 1,500 — six times what his father had built. He established the North Salem workshop with 36-inch water bath grinding wheels and made the Ambrosi name known across all of NY, NJ, and CT.

The North Salem workshop Robert built.
The New York Times profiled the Ambrosi family — noting fewer than 100 professional knife sharpeners remain across all of North America. The article captured what the industry already knew: Ambrosi is one of the last true family operations doing this at this level.
Jason Ambrosi is the fourth generation and the owner you'll actually speak to. He grew up on the shop floor, earning the craft from his father Robert. Today he manages every customer personally across NYC, the Catskills, NJ, and CT — and answers every call himself. Nearly 100 years since Giacomo's cart first rolled through the Bronx.

Jason Ambrosi — fourth generation.
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