Insights

Legacy to First Financial The company is effectively operating under First Financial Bank after a 2018 merger with MainSource Bank, suggesting sales conversations could target First Financial Bank's broader product suite and integration needs rather than MainSource specifics.

Growth and Expansion Recent activity shows First Financial Bank expanding offices and entering new markets (Michigan Grand Rapids) and pursuing acquisitions (BankFinancial). Opportunities exist to introduce scalable banking solutions and regionalized services to support growth and integration.

Community and CRA Focus Awards and partnerships around the Community Reinvestment Act and a multi-year Community Benefits Agreement indicate strong emphasis on community lending and compliance; tailored CRA-friendly product offerings and monitoring solutions could add value.

Technology Stack Utilizes AWS, Docker, Adobe Experience Manager, CrowdStrike, Workday, and other enterprise tools, signaling readiness for modern cloud, security, HR, and digital experience investments; potential to offer integrated security, cloud, and workforce solutions.

Credibility and Scale Signals Recognition as a top bank by Forbes and Gallup Exceptional Workplace Award, along with a revenue range of hundreds of millions, suggests a4010 alignment for enterprise-grade solutions, partner ecosystems, and scalable services that support large regional banks.

Similar companies to MainSource Bank

MainSource Bank Tech Stack

MainSource Bank uses 8 technology products and services including Amazon Web Services, Docker, Adobe Experience Manager, and more. Explore MainSource Bank's tech stack below.

Media & News

MainSource Bank's Email Address Formats

MainSource Bank uses at least 8 email formats:
MainSource Bank Email FormatsExamplePercentage
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%
FLast@mainsourcebank.comJDoe@mainsourcebank.com
96%
F.Last@mainsourcebank.comJ.Doe@mainsourcebank.com
2%
Last@mainsourcebank.comDoe@mainsourcebank.com
1%
First.Last@mainsourcebank.comJohn.Doe@mainsourcebank.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 August 2026, MainSource Bank's annual revenue is estimated to be $100M - $250M.

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 August 2026, MainSource Bank has approximately 257 employees across 3 continents, including North America, Asia and Europe. Key team members include Co-Founder: W. C., Vice President: K. B. and Director: N. W. 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 Amazon Web Services, Docker, Adobe Experience Manager, CrowdStrike, Workday, Microsoft Active Directory, Box and Webex.

What is MainSource Bank's email format?

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MainSource Bank's email format typically follows the pattern of First.Last@bankatfirst.com. Find more MainSource Bank email formats with LeadIQ.
MainSource Bank logo

MainSource Bank

BankingOhio, United States201-500 Employees

MainSource Bank operates in the banking industry and is based in Cincinnati, Ohio. The institution has merged with First Financial Bank and as a result, it now operates under that brand, with the First Financial Bank entity continuing the relationship with customers; the original account referenced is noted as inactive. The broader organization is part of a regional network that has engaged in community-focused initiatives, including partnerships and programs under the First Financial banner, with activity spanning across multiple states. The company’s presence includes a strong consumer and small-business banking footprint, supported by its status as a member of the FDIC and equal housing lender, and its regional profile is reflected in ongoing developments and recognitions reported through early 2026. A notable recent development is the continued expansion of the First Financial Bank brand and its community engagement efforts, including collaborations and local partnerships within the Cincinnati area and beyond. } }</n> } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } ) } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } } }

Section iconCompany Overview

Phone number
NAICS Code
52211 - Commercial Banking
Employees
201-500

Section iconFunding & Financials

  • $100M - $250M

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

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