Nonantum Capital Partners Email Format

Financial ServicesMassachusetts, United States11-50 Employees

Nonantum Capital Partners is a Boston-based private equity firm established in 2018 as a spin-out from Charlesbank Capital Partners. The firm targets investments in family- and founder-owned businesses, corporate carve-outs, and complex situations where strong personal partnerships among founders, families, and management teams can drive meaningful equity value creation. Its approach centers on partnering with leadership to build durable, enduring businesses, drawing on decades of experience in private equity and management to support strategic growth and operational improvement.
Recent activity demonstrates a focus on middle-market transactions and portfolio expansion, including the acquisition of MSI Express in Boston in 2025 and investments in A360 Inc. in collaboration with other investors. The firm operates within the financial services industry and maintains a presence in Boston, Massachusetts, with personnel and offices positioned to engage closely with the firms it backs.

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