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Stellar Bank
What Does Stellar Bank Do?
Post Oak Bank, N.A. was a Houston-based community bank founded in 2004, dedicated to serving the financial needs of privately-owned businesses, professionals, and individuals in the Greater Houston area. Known for its personalized service and local decision-making, Post Oak Bank offered a range of banking products including commercial and industrial loans, commercial real estate loans, and treasury management services. In October 2018, Post Oak Bancshares, Inc., the parent company of Post Oak Bank, was acquired by Allegiance Bancshares, Inc. Subsequently, Allegiance Bank merged with CBTX, Inc. to form Stellar Bancorp, Inc., with the combined bank operating under the Stellar Bank name. Former Post Oak Bank branches and services are now part of Stellar Bank.
Where Is Stellar Bank's Headquarters?
HQ Function
Served as the central administrative and operational hub for Post Oak Bank, N.A. before its acquisition, overseeing retail banking, commercial lending, wealth management, and corporate strategy.
Notable Features:
Situated in a Class A office tower within the prestigious Uptown Houston/Galleria district, known for its prime location and accessibility to major business centers.
Work Culture:
Historically fostered a client-centric and community-focused work culture, emphasizing strong relationships with local businesses and personalized banking solutions. Employees were part of a growing community bank environment.
HQ Significance:
The Galleria headquarters was significant as it positioned Post Oak Bank in the heart of Houston's commercial activity, facilitating close engagement with its target market of businesses and professionals.
Values Reflected in HQ: The choice of a prominent Galleria location reflected Post Oak Bank's commitment to professionalism, its focus on serving the business community, and its ambition to be a significant player in Houston's financial sector.
Location:
As a community bank, Post Oak Bank's operations were historically concentrated within the Greater Houston metropolitan area in Texas, USA. It did not have a direct international global presence. Following its acquisitions, its services are now integrated into Stellar Bank, which also primarily serves communities within Texas.
Street Address:
2200 Post Oak Boulevard, Suite 1600
City:
Houston
State/Province:
Texas
Country:
USA
Where Else Does Stellar Bank Operate Around the World?
Houston, Texas/USA
Address: 5000 San Felipe Street, Suite 100, Houston, TX 77056 (Tanglewood Branch - Now Stellar Bank)
Served the affluent residential and commercial community of Tanglewood and surrounding neighborhoods with accessible banking solutions.
Sugar Land, Texas/USA
Address: 1515 Highway 6 South, Sugar Land, TX 77478 (Sugar Land Branch - Now Stellar Bank)
Expanded Post Oak Bank's footprint into Fort Bend County, offering community banking services to a growing residential and commercial base.
Houston, Texas/USA
Address: 800 Town & Country Blvd., Suite 100, Houston, TX 77024 (CityCentre Branch - Now Stellar Bank)
Served the dynamic West Houston corridor, including the Energy Corridor and Memorial areas, providing convenient banking options.
Buying Intent Signals for Stellar Bank
Highperformr Signals uncover buying intent and give you clear insights to target the right accounts at the right time — helping your sales, marketing, and GTM teams close more deals, faster.
Who's Leading Stellar Bank? Meet the Executive Team
As of April 2025, Stellar Bank' leadership includes:
Who's Investing in Stellar Bank?
Stellar Bank has been backed by several prominent investors over the years, including:
What Leadership Changes Has Stellar Bank Seen Recently?
There have been no executive new hires or exits specifically for Post Oak Bank in the last 12 months, as the bank was acquired in 2018 and its leadership integrated into the acquiring entity (Allegiance Bank, now Stellar Bank). Any significant executive changes related to its legacy operations would now be at the Stellar Bank level.
What Technology (Tech Stack) Is Used byStellar Bank?
Discover the tools Stellar Bank uses. Highperformr reveals the technologies powering your target accounts — helping your sales, marketing, and GTM teams prioritize smarter and close faster.
Stellar Bank Email Formats and Examples
Historically, Post Oak Bank likely utilized common corporate email formats such as [first_initial][last]@postoakbank.com or [first].[last]@postoakbank.com. Following its acquisition and subsequent mergers, employees would have transitioned to email addresses associated with Allegiance Bank and now Stellar Bank (e.g., ending in @stellar.bank). The original postoakbank.com domain is no longer active for email communication.
[first_initial][last]@postoakbank.com (historical, e.g., jdoe@postoakbank.com)
Format
rsledge@postoakbank.com (historical example for a former executive)
Example
0%
Success rate
What's the Latest News About Stellar Bank?
GlobeNewswire • October 1, 2018
Allegiance Bancshares, Inc. Completes Acquisition of Post Oak Bancshares, Inc.
Allegiance Bancshares, Inc., the parent company of Allegiance Bank, announced the completion of its acquisition of Post Oak Bancshares, Inc., and its wholly-owned subsidiary, Post Oak Bank, N.A. This strategic move expanded Allegiance's presence in the Houston market....more
Houston Business Journal • May 26, 2018
Allegiance Bank to acquire another Houston-area bank in $115M deal
Allegiance Bancshares Inc. announced plans to acquire Post Oak Bancshares Inc., the parent of Post Oak Bank NA, in a cash-and-stock deal valued at approximately $115.5 million. The deal combined two Houston-focused community banks....more
GlobeNewswire • October 3, 2022
Stellar Bancorp, Inc. Announces Completion of Merger of Equals Between Allegiance Bancshares, Inc. and CBTX, Inc.
Stellar Bancorp, Inc. announced the completion of the merger of equals between Allegiance Bancshares, Inc. and CBTX, Inc. The combined company operates as Stellar Bancorp, Inc., and its bank subsidiary, Allegiance Bank, merged with CBTX's bank subsidiary, CommunityBank of Texas, N.A., and now operates as Stellar Bank. This event marks the final stage of consolidation for entities including the former Post Oak Bank....more
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