Energy Capital Partners has agreed to acquire EnergySolutions from TriArtisan Capital Advisors, as private equity capital continues to target nuclear infrastructure amid rising energy demand.

The transaction marks a return investment for ECP, which previously owned the business, and reflects renewed conviction in the nuclear sector’s long-term growth prospects.

EnergySolutions provides integrated services across the nuclear lifecycle, including transportation, processing, recycling, and disposal of radiological materials, serving government and commercial customers globally.

The acquisition comes as nuclear energy gains strategic importance in the US and beyond, driven by energy security priorities, regulatory support, and increasing demand for reliable baseload power.

ECP highlighted its long-standing relationship with the company and its management team, positioning the deal as a continuation of a proven partnership.

“We see tremendous potential for its platform as the role of nuclear energy in meeting the rising need for reliable, baseload power continues to grow. EnergySolutions has built deep expertise in supporting nuclear facilities safely and responsibly throughout their lifecycle,” said Drew Brown, Partner at ECP.

Under TriArtisan’s ownership, EnergySolutions expanded its capabilities and strengthened its position in the nuclear services market, supporting a diverse customer base including utilities, governments, and research institutions.

“We believe ECP is an excellent next owner for EnergySolutions, and we are pleased to support this transaction as the company enters its next chapter,” said Gerald Cromack, Co-Founding Partner of TriArtisan.

The transaction is expected to close in 2026, subject to customary regulatory approvals.

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