West Caldwell, NJ — September 2, 2026 — Keystone Capital Management, L.P. (“Keystone”) and Penta Fine Ingredients, Inc. (“Penta” or the “Company”) are pleased to announce that Greg Robertson has been appointed Chief Executive Officer of Penta. Mike Size, who has served as Chief Executive Officer since Keystone’s 2025 partnership with the Company, will remain on Penta’s Board of Directors.
Penta is a longstanding solutions provider of specialty chemicals and intermediate ingredients serving the flavors, fragrance, and pharmaceutical markets. Founded over four decades ago and headquartered in West Caldwell, New Jersey, Penta operates out of a 113,000-square-foot facility and offers an exceptionally diverse product portfolio spanning thousands of items that serve a loyal, global customer base of ingredient manufacturers and distributors across a variety of industries.
Greg previously served as President of Penta Fine Ingredients, a role he assumed in June 2026. As CEO, Greg will lead Penta’s next phase of growth, including customer engagement, business development, portfolio expansion, and strategic acquisitions.
“It is an honor to be chosen to lead Penta,” said Greg Robertson. “I look forward to working with our customers, suppliers, and employees, to drive the next phase of Penta’s growth.”
“It has been a privilege to serve as CEO of Penta,” said Mike Size. “Greg is the right leader to take the Company forward. I look forward to supporting him and the team from the Board as we continue to scale the business and serve our customers.”
“We are pleased to appoint Greg as CEO and to have Mike remain on the Board,” said Matt DeLong, Managing Director at Keystone Capital. “Greg’s commercial track record in flavors and fragrances, together with Mike’s continued counsel, will be invaluable as we scale the business and pursue long-term value creation.”
Penta will continue to seek acquisition opportunities in the specialty chemical distribution and manufacturing space. Parties with knowledge of relevant potential investment opportunities are encouraged to contact Keystone.
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About Keystone Capital Management, L.P. Keystone was founded in 1994 with the objective of investing the personal capital of its partners in high-quality businesses; patiently building long-term value alongside management through organic growth and strategic acquisitions. Keystone currently manages over $1 billion in capital across two funds. To maintain consistency with its historical investment strategy and align interest across all stakeholders, the principals of Keystone collectively represent the largest single investor in both of these funds, which has been structured with an extended life to support Keystone’s belief in investment period flexibility. Over the course of its history, Keystone has completed over 50 platform investments and more than 200 total acquisitions with a focus on commercial & industrial services, food & beverage, industrial technology, professional services, and technical services. For more information, please visit www.keystonecapital.com or follow Keystone on LinkedIn.
About Penta Fine Ingredients, Inc.
For over 40 years Penta has created strategic partnerships within the fine ingredient community that are vital in helping customers achieve their goals in today's ever-changing business environment. In addition to a large ingredient portfolio, Penta maintains an extensive inventory of natural, FEMA GRAS, and cutting-edge materials critical to the flavor and fragrance markets. Companies worldwide have partnered with Penta to achieve their ongoing and future commercial business goals.
Connect with Penta on LinkedIn.
By James Gavin