Bank BranchesEvery insured bank office · FDIC · 1994–2026

Bank Branches › Texas › Harris County › 20 Greenway Plz

Full-service office · FDIC office no. 558509

Investar Bank, National Association
20 Greenway Plz, Houston, TX 77046

Open · June 2026

$40.0M
deposits, 2026
2013
established
617th
of 857 in county
3
names on the sign
This office's passbook2014–2026
DateBank on the signDepositsChange
Jun 30 2026Investar Bank, National Association$40.0M−21%
Jun 30 2025Investar Bank, National Association$50.4M+15%
Jun 30 2024Investar Bank, National Association$44.0M+13%
Jun 30 2023Investar Bank, National Association$39.0M−17%
Jun 30 2022Investar Bank, National Association$47.1M+20%
Jun 30 2021Investar Bank, National Association$39.2M+98%
Jun 30 2020Investar Bank, National AssociationNEW NAME$19.8M+58%
Jun 30 2019Investar BankNEW NAME$12.6M−15%
Jun 30 2018Mainland Bank$14.9M+22%
Jun 30 2017Mainland Bank$12.2M−27%
Jun 30 2016Mainland Bank$16.7M+75%
Jun 30 2015Mainland Bank$9.5M+337%
Jun 30 2014Mainland Bank$2.2M
2013-10-14Office established (FDIC record) — 1 years before this passbook begins

Nearest other open offices in Harris County

  1. 0.1 miRegions Bank · 3773 Richmond Ave, Houston
  2. 0.1 miFirst Horizon Bank · 3810 Richmond Ave, Houston
  3. 0.2 miBank of America, National Association · 3904 Richmond Ave, Houston
  4. 0.2 miPNC Bank, National Association · 4004 Richmond Ave, Houston
  5. 0.2 miCIBC National Trust Company · 11 Greenway Plz, Ste 2625, Houston
  6. 0.3 miStellar Bank · 9 Greenway Plz, Ste 110, Houston
  7. 0.3 miFrost Bank · 3707 Richmond Ave, Houston
  8. 0.5 miWells Fargo Bank, National Association · 5311 Weslayan St, Houston

All banks in Harris County →
Every Investar Bank, National Association office →
Earlier names and banks folded into Investar Bank, National Association →

Names on the sign

2014–2018Mainland Bank2019–2019Investar Bank2020–nowInvestar Bank, National Association

The FDIC office number stays with the building when banks merge or rename, so the same office appears under each owner. Follow an earlier name to see what became of that bank.

Deposits are the balances the bank assigned to this office on June 30 of each year, in nominal dollars. Source: FDIC Summary of Deposits, office (UNINUMBR) 558509.