Insights

Expansion momentum Old Second National Bank is actively expanding its Chicagoland footprint, suggesting opportunities to offer scalable banking technology platforms, branch optimization services, or regional marketing tools to support growth and customer acquisition.

Acquisition activity The planned acquisition of BancorpFinancial for 197 million indicates a phase of integration and systems consolidation, presenting a sales opening for integration software, data migration services, core banking modernization, and risk/compliance solutions.

Diverse investments Recent asset investments across technology and healthcare–adjacent sectors imply appetite for diversified portfolios; this could translate into opportunities for advisory services, asset management platforms, and fintech partnerships aligned with their investment approach.

Midmarket scale With 501-1000 employees and revenue in the hundreds of millions, Old Second sits between regional and larger banks, signaling a need for midmarket-friendly solutions in cybersecurity, ERP integrations, and customer experience optimization tailored to banks of similar scale.

Digital footprint A tech stack that includes Zipkin, WordPress, IBM SPSS, and payment networks indicates openness to data analytics, observability, and digital experience enhancements; there is potential to pitch analytics, performance monitoring, and modernized web/mobile banking capabilities.

Old Second National Bank Tech Stack

Old Second National Bank uses 8 technology products and services including Zipkin, WordPress, Blackline, and more. Explore Old Second National Bank's tech stack below.

  • Zipkin
    Analytics
  • WordPress
    Content Management System
  • Blackline
    Corporate Performance Management
  • IBM SPSS
    Enterprise
  • core-js
    Javascript Libraries
  • VISA
    Miscellaneous
  • Mastercard
    Payment Processing
  • Elavon
    Payment Processing

Media & News

Old Second National Bank's Email Address Formats

Old Second National Bank uses at least 1 format(s):
Old Second National Bank Email FormatsExamplePercentage
FLast@oldsecond.comJDoe@oldsecond.com
94%
First.Last@oldsecond.comJohn.Doe@oldsecond.com
5%
FirstLast@oldsecond.comJohnDoe@oldsecond.com
1%

Frequently Asked Questions

Where is Old Second National Bank's headquarters located?

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Old Second National Bank's main headquarters is located at 37 South River Street Aurora, Illinois 60506 United States. The company has employees across 2 continents, including North AmericaEurope.

What is Old Second National Bank's phone number?

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You can contact Old Second National 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 Old Second National Bank's official website and social media links?

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Old Second National Bank's official website is oldsecond.com and has social profiles on LinkedInCrunchbase.

What is Old Second National Bank's NAICS code?

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Old Second National Bank's NAICS code is 52211 - Commercial Banking.

How many employees does Old Second National Bank have currently?

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As of June 2026, Old Second National Bank has approximately 959 employees across 2 continents, including North AmericaEurope. Key team members include Ceo: J. E.Chief Financial Officer: D. C.Chief Finance Officer: R. C.. Explore Old Second National Bank's employee directory with LeadIQ.

What industry does Old Second National Bank belong to?

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Old Second National Bank operates in the Banking industry.

What technology does Old Second National Bank use?

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Old Second National Bank's tech stack includes ZipkinWordPressBlacklineIBM SPSScore-jsVISAMastercardElavon.

What is Old Second National Bank's email format?

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Old Second National Bank's email format typically follows the pattern of FLast@oldsecond.com. Find more Old Second National Bank email formats with LeadIQ.

How much funding has Old Second National Bank raised to date?

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As of June 2026, Old Second National Bank has raised $60M in funding. The last funding round occurred on Apr 20, 2021 for $60M.

When was Old Second National Bank founded?

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Old Second National Bank was founded in 1871.

Old Second National Bank

BankingIllinois, United States501-1000 Employees

Old Second National Bank is a regional bank based in Aurora, Illinois. With a history spanning more than 150 years, it traces the evolution of the Chicago financial landscape and the growth of the metropolitan area. The institution emphasizes financial responsibility and a humane approach as it serves individuals and businesses across Chicagoland.

It positions itself as a community-focused financial partner in the Chicago area, aiming to deliver a better banking experience through stable, dependable service. The bank is an Equal Opportunity Employer and is a member of the FDIC, indicating compliance with applicable protections for deposits and fair employment practices.

Section iconCompany Overview

Headquarters
37 South River Street Aurora, Illinois 60506 United States
Phone number
NAICS Code
52211 - Commercial Banking
Founded
1871
Employees
501-1000

Section iconFunding & Financials

  • $60M

    Old Second National Bank has raised a total of $60M of funding over 1 rounds. Their latest funding round was raised on Apr 20, 2021 in the amount of $60M.

  • $250M$500M

    Old Second National Bank's revenue is estimated to be in the range of $250M$500M

Section iconFunding & Financials

  • $60M

    Old Second National Bank has raised a total of $60M of funding over 1 rounds. Their latest funding round was raised on Apr 20, 2021 in the amount of $60M.

  • $250M$500M

    Old Second National Bank's revenue is estimated to be in the range of $250M$500M

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