Insights

Strategic Expansion First Financial Bank has recently expanded its presence into Michigan with a new office in Grand Rapids and appointed experienced leadership, indicating ongoing growth initiatives that could benefit from enhanced banking and financial solutions.

Mergers & Acquisitions The upcoming acquisition of BankFinancial Corporation for $142 million presents opportunities to offer specialized financial services, integration support, and technology solutions to facilitate a seamless merger process.

Cybersecurity Focus With the appointment of a new chief information security officer to oversee data and technology security, there is a clear emphasis on cybersecurity, creating demand for advanced security solutions and compliance services.

Technology Adoption The bank utilizes a variety of tech platforms including Workday Studio, Boomi, and DocuSign, highlighting potential for ongoing tech upgrades, integration projects, and digital transformation services.

Market Growth First Financial Bank's international expansion to Chester, UK, signals an appetite for entering new markets, which could open avenues for cross-border banking technology, global transaction services, and localized financial solutions.

MainSource Bank Tech Stack

MainSource Bank uses 8 technology products and services including Workday Studio, Prometheus, Microsoft Excel, and more. Explore MainSource Bank's tech stack below.

  • Workday Studio
    Data Integration
  • Prometheus
    Data Management
  • Microsoft Excel
    Editors
  • DocuSign
    Miscellaneous
  • Windows 7
    Operating Systems
  • Boomi
    Platform As A Service
  • Adobe Creative Suite
    Visualisation Software
  • CSS
    Web Tools And Plugins

Media & News

MainSource Bank's Email Address Formats

MainSource Bank uses at least 2 format(s):
MainSource Bank Email FormatsExamplePercentage
FLast@mainsourcebank.comJDoe@mainsourcebank.com
94%
F.Last@mainsourcebank.comJ.Doe@mainsourcebank.com
1%
Last@mainsourcebank.comDoe@mainsourcebank.com
1%
First.Last@mainsourcebank.comJohn.Doe@mainsourcebank.com
2%
FMLast@mainsourcebank.comJMDoe@mainsourcebank.com
1%
First@mainsourcebank.comJohn@mainsourcebank.com
1%
First.Last@bankatfirst.comJohn.Doe@bankatfirst.com
94%
Last.First@bankatfirst.comDoe.John@bankatfirst.com
4%
FirstLast@bankatfirst.comJohnDoe@bankatfirst.com
1%
Last@bankatfirst.comDoe@bankatfirst.com
1%

Frequently Asked Questions

What is MainSource Bank's phone number?

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You can contact MainSource Bank's main corporate office by phone at . For more prospecting data, LeadIQ has access to up-to-date and accurate contact information within our platform. Find, capture, and sync contact data to your CRM and sales tools in one click.

What is MainSource Bank's official website and social media links?

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MainSource Bank's official website is bankatfirst.com and has social profiles on LinkedIn.

How much revenue does MainSource Bank generate?

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As of December 2025, MainSource Bank's annual revenue is estimated to be $655M.

What is MainSource Bank's NAICS code?

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MainSource Bank's NAICS code is 52211 - Commercial Banking.

How many employees does MainSource Bank have currently?

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As of December 2025, MainSource Bank has approximately 501 employees across 2 continents, including North AmericaAsia. Key team members include Vice President - Commercial Banker: A. J.Co-Founder: W. C.Vice President: K. P.. Explore MainSource Bank's employee directory with LeadIQ.

What industry does MainSource Bank belong to?

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MainSource Bank operates in the Banking industry.

What technology does MainSource Bank use?

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MainSource Bank's tech stack includes Workday StudioPrometheusMicrosoft ExcelDocuSignWindows 7BoomiAdobe Creative SuiteCSS.

What is MainSource Bank's email format?

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MainSource Bank's email format typically follows the pattern of FLast@mainsourcebank.com. Find more MainSource Bank email formats with LeadIQ.

MainSource Bank

BankingOhio, United States501-1000 Employees

MainSource Bank merged with First Financial Bank in May 2018. This account is no longer active. Follow us at First Financial Bank. 

Member FDIC. Equal Housing Lender

Section iconCompany Overview

Phone number
NAICS Code
52211 - Commercial Banking
Employees
501-1000

Section iconFunding & Financials

  • $100M$250M

    MainSource Bank's revenue is estimated to be in the range of $100M$250M

Section iconFunding & Financials

  • $100M$250M

    MainSource Bank's revenue is estimated to be in the range of $100M$250M

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