Lawrence Siff is the CEO of Neptune Advisors and C Level Community. Neptune Advisors is an advisory firm of former operators that applies a holistic approach to elevating middle market companies for optimal growth and success. C Level Community, a membership-based platform, connects middle-market leaders by providing educational resources both online and in person through its Thought Leadership Series, featuring world renowned CEOs. Neptune Advisors is proud to have been inducted into the Corporate LiveWire Hall of Fame after being named the Innovation & Excellence Award winner for the United States in 2024, 2025, and 2026, one of the most highly anticipated and celebrated recognitions within the global corporate community. Mr. Siff has advised hundreds of CEOs and Boards on maximizing corporate value. He is the Founder of the Annual Pathway to Platinum Conference designed for CEOs to share best practices in management and oversight.

Mr. Siff, a National Association of Corporate Directors (NACD) Board Leadership Fellow, serves on the Board of Directors of MyJOVE Corporation, Two Ten International Footwear Foundation (Chair, Investment Committee), Museum of Science (Past Chair, Investment Committee) and Brimmer & May School (past Chair). Mr. Siff previously served as a board member for Mason Companies Inc., Jones & Vining, Imagination Brands (Chair), Airmid Critical Care Products, Resilient Systems (sold to IBM), Kayem Foods, POW Audio, Formerly, Mr. Siff served on the boards of Asia-America Chamber of Commerce (Chair), Boston Aid to the Blind (Chair), Brown Club of Boston (Chair), Winsor School, New England Business Association, Association for Corporate Growth and the MA Senate Business Advisory Council. He is an Industry Advisor for Silverwood Partners, a boutique investment bank.

Prior to Neptune Advisors, Mr. Siff was Principal and Managing Director of Gordon Brothers Group, a $50 billion investment and transaction advisory firm. At Gordon Brothers Group, Mr. Siff founded the consumer products and branding businesses, which grew to become two of the firm’s largest divisions. As its Director of Strategic Acquisitions, he led acquisitions ranging from $5 million to $1.2 billion. Mr. Siff served on the Executive Committee and was an advisor to GBMP, an equity and debt fund. Over his 40-year career as a growth‐oriented corporate executive, Mr. Siff led manufacturing, technology, consumer, wholesale and retail businesses. He was the President and CEO of Babystripes, Inc., an online retailer of luxury baby gifts, and the President and CEO of Cherry Tree Products, Inc., a manufacturer, wholesaler and retailer of high‐end children’s clothing. Mr. Siff was the President and CEO of Ambassador Shoe, B‐W Footwear Inc. and B/W/A International, where he established operations at 38 factories in 9 countries and successfully sold the companies to strategic acquirers. Mr. Siff began his career at Procter and Gamble where he created the $4 Billion Wholesale Club Division.

Mr. Siff is a recognized expert in corporate governance. He has been a speaker at the National Directors Institute (Chicago), The Society of Corporate Secretaries and Governance Professionals (NYC), the Chief Executives Officer’s Club (Boston), the Asia America Chamber of Commerce (Boston), Morgan Stanley Smith Barney (NYC), Armanino McKenna Technology Forum (San Francisco), as well as a lecturer at Brandeis University International Business School, Babson Olin Graduate School of Business and Harvard Business School. He has been a contributor to Forbes. Mr. Siff graduated magna cum laude from Brown University and the Executive Program at Dartmouth’s Amos Tuck Business School.