Here are the leading private (non‑state) commercial banks in Sri Lanka — commonly cited as the largest and most influential private banks by assets, market share and presence (current as of 2024–2025):

Top private banks (brief notes)

• Commercial Bank of Ceylon (ComBank) — generally regarded as the largest private-sector bank in Sri Lanka by assets, market capitalisation and international footprint. (combank.lk)
• Hatton National Bank (HNB) — one of the largest private banks by assets and branch/ATM network. (en.wikipedia.org)
• Sampath Bank — major private Commercial Bank with substantial retail and corporate operations. (oxfordbusinessgroup.com)
• National Development Bank (NDB) — large private-sector bank focused on corporate, trade and project finance as well as retail. (oxfordbusinessgroup.com)
• DFCC Bank — important private development and Commercial Bank (significant corporate/client base). (oxfordbusinessgroup.com)
• Seylan Bank — established private bank with notable retail and SME lending. (oxfordbusinessgroup.com)
• Nations Trust Bank (NTB) — growing private bank active in retail, cards and digital banking. (bankinfolabs.com)
• Pan Asia Banking Corporation — mid‑sized private bank with retail and corporate services. (oxfordbusinessgroup.com)
• Amana Bank — the country’s full‑service Islamic (Sharia‑compliant) bank, smaller by assets but important niche player. (en.wikipedia.org)
• Union Bank of Colombo and several other private banks (e.g., Cargills Bank, Nations Trust, HDFC Bank / Housing Development Finance Corporation Bank) also play meaningful roles in the private sector. (bankinfolabs.com)

Notes and sources

• Commercial Bank of Ceylon is widely reported as the largest private-sector bank by assets and market cap (and is often the private bank with the highest market share among private banks). (en.wikipedia.org)
• Market‑share breakdowns and rankings of private banks (top‑3 / top‑5 private banks) are discussed in industry reports and summaries (e.g., Oxford Business Group and local banking summaries). These show ComBank, HNB and Sampath typically leading the private segment, followed by NDB, DFCC, Seylan and others. (oxfordbusinessgroup.com)

If you’d like, I can:

• Provide a ranked list by total assets (latest audited figures) with exact asset values and dates; or
• Give contact/branch numbers, market‑cap and recent financial highlights for any specific banks above.

Which would you prefer?