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SQ Capital LLC

sqcapital.com Direct + LP

SQ Capital is a secondaries firm that focuses on middle-market GP-led and LP secondaries. It uses a conviction-led approach and combines direct private equity training with data science and AI capabilities.

SQ Capital LLC is a private equity firm headquartered in New York, United States, founded in 2025. It invests both directly in companies and in funds as a limited partner, from fund commitments to buyout, in private equity and secondaries.

“SQ Capital is designed to target alpha in middle-market GP-led and LP secondaries—curating a high-quality portfolio with a conviction-led approach.”

— SQ Capital LLC, own website
Layer
Direct + LP
Type
Private equity
Stage
Funds – Buyout
Headquarters
New York, United States
Invests in
US
Sectors
private equity, secondaries
Founded
2025

Team, as SQ Capital LLC publishes it

  • Mustafa M. Siddiqui Founder & CEO
  • Michael Petryczenko CFO & CCO
  • Henry Minello Managing Director
  • Jonathan Hamilton Managing Director
  • Andrew Curry Managing Director
  • Naiel Iqbal Operating Partner
  • Mark Epley Senior Advisor
  • Mark Nevins Senior Advisor
  • Eric Wayman Director
  • Steven Castaño Vice President
  • Ryan Cockburn Vice President
  • Teimur Siddiqui Vice President

Names and roles exactly as listed on sqcapital.com. Nothing else about these people is recorded.

Where this comes from

Every fact above was read from a page SQ Capital LLC publishes itself. Nothing is taken from third-party databases. Investment activity (deals, co-investors) is not yet recorded.

  • https://sqcapital.com/name, is_investor, layer, type, hq_country, hq_city, invests_in_geographies, stage_min, stage_max, sectors, thesis_quote, thesis_quote_page, description, founded, people, status, confidence

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Record 5521 · added 2026-09-03 · link last verified 2026-10-21 · confidence high

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