Katie Riley Appointed as VP, Client Partnerships at AtomicPE

AtomicPE has appointed Katie Riley as VP, Client Partnerships, bringing more than a decade of experience in capital markets, consulting and client partnerships to a company in a period of rapid expansion.

Career Highlights

Riley joins from Catalant, having stepped into the senior role of Client Partner there in March 2025. That move followed a stint at L.E.K. Consulting, which Riley joined as Senior Consultant in 2021 and where they also served as Sustainability Center of Excellence Secondee from 2023.

The foundation was laid at Fidelity Investments, where Riley started in 2014 through the Fidelity Capital Markets Rotational Program. Within Fidelity Prime Services, Riley advanced from Business Analyst to Account Manager, gaining early depth in managing institutional client relationships. According to Crustdata people data, Riley also earned a Master of Business Administration from MIT Sloan School of Management in 2021, pairing hands-on financial services experience with formal business training.

Why It Matters For AtomicPE

AtomicPE, a privately held company, is scaling quickly. Crustdata company data shows headcount at 15, up from 2 a year earlier, a 650% increase over 12 months. Momentum has continued into recent months, with headcount climbing 50% from 10 six months ago.

The team is anchored in Portland, ME, where 7 employees are based, while the New York City Metropolitan Area accounts for 6. As a New York based leader, Riley joins with a ready circle of colleagues close at hand from day one.

What's Next

The appointment takes effect in November 2026, following the announcement on November 4, 2026. With a background in Business Development and a track record that spans banking operations, strategy consulting and client leadership, Riley is well placed to shape how AtomicPE builds and deepens its client partnerships during its next phase of growth.