Heartwood Partners LLC, a middle-market private equity firm, has promoted Demetrios Dounis, James Sidwa and Edwin Tan to managing partners of the firm.

Dounis joined Heartwood in 2020. He has played a pivotal role in establishing Heartwood as a significant investor in the environmental services sector. In addition to his 17 years of private equity experience, Dounis spent five years working in investment banking and public accounting.

Sidwa joined Heartwood in 2009 and has been instrumental to the growth of firm over the past 15 years. He has led multiple investments across the agriculture and building products sectors. In addition to his 17 years of private equity experience, Sidwa spent eight years working in transaction services and public accounting.

Tan joined Heartwood in 2011 and has played a significant role in the firm’s growth over the past 13 years. He has led multiple successful investments across the chemicals and specialty materials sectors. In addition to 19 years of private equity and debt investing experience, Tan spent two years working in investment banking.