Oak Hill-backed Mercer Advisors acquires AI-native tax firm Fifteenth
Fifteenth is an AI-native tax and accounting firm whose platform serves high-complexity equity compensation work, including clients at Silicon Valley technology firms.
Backed by Oak Hill Capital, Genstar Capital, Atlas Partners and GIC. In our coverage since November 5, 2026.
Fifteenth is an AI-native tax and accounting firm whose platform serves high-complexity equity compensation work, including clients at Silicon Valley technology firms.