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SQ Capital LLC

sqcapital.com Direct investor

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 directly in companies, from growth 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 investor
Type
Private equity
Stage
Growth – 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 2026-09-06 · confidence high

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