Leonard Osser

No open positions remaining

Net worth: 987 332 $ as of 2026-05-30

78 year

Health Technology

Profile

Leonard A. Osser served as Chief Executive Officer & Principal Owner at US Asian Consulting Group, Inc. from 1980 to 1995.
Occupied the role of Chief Executive Officer & Director at Milestone Medical, Inc. between 2011 and 2017, then as Chief Executive Officer from 2018 to 2021.
Held the position of Vice Chairman at Milestone Scientific, Inc. from 2021 to 2025.
Worked as Managing Director-China Operations at Nexalin Technology, Inc.

Known holdings in public companies

Company	Date	Number of shares	Valuation	Valuation date
NEXALIN TECHNOLOGY, INC. 7.86%	2025-09-28	1,618,577 ( 7.86% )	987 332 $	2026-05-30

Former positions of Leonard Osser

Companies	Position	End
MILESTONE SCIENTIFIC INC.	Chief Executive Officer	2021-05-18
MILESTONE MEDICAL, INC.	Chief Executive Officer	2021-05-18
MILESTONE MEDICAL, INC.	Chief Executive Officer	2017-07-09
US Asian Consulting Group, Inc.	Chief Executive Officer	1995-10-31
NEXALIN TECHNOLOGY, INC.	Corporate Officer/Principal	-

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Linked companies

Private companies	4
Milestone Scientific, Inc. Milestone Scientific, Inc. Medical SpecialtiesHealth Technology Provides subcutaneous injection technology for dental and medical applications	Health Technology
Nexalin Technology, Inc. Nexalin Technology, Inc. Medical SpecialtiesHealth Technology Manufactures medical devices for mental health	Health Technology
US Asian Consulting Group, Inc.
Milestone Medical, Inc. Milestone Medical, Inc. Medical SpecialtiesHealth Technology Operates as a development stage company that focuses on the development, manufacture, commercialization, and marketing of epidural & intra-articular drug delivery systems	Health Technology