Nucleus Software Exports Limited (NSEL) was formally created and deployed as a legal entity on 9th January 1989 as a private limited company. It delivers comprehensive solutions in software solutions to the Banking and Financial Services Industry. For over 20 years, the company has successfully engineered solutions spanning from Retail Banking to Corporate Banking, Cash Management, Trade Finance, Internet Banking and Credit Cards. The Company's services are aligning in the categories of Outsourcing Software Solutions, Software Support and Maintenance and Customized Software Development. FinnOne, the Flagship product of NSEL is a comprehensive suite for Retail Banking applications comprising of modules and others includes Cash@Will, TRAde facto, BankOnet and PowerCARD are in the area of Cash Management, Trade Finance, Internet Banking and Credit Cards respectively. Complementary solutions like Rewards, Credit Card Application Processing System ccAPS & Fraud Management System, FMS also forms a part of product making available from Nucleus Software.

The Company's status was converted from private limited to public limited on 10th October of the year 1994. During the year 1995-96 the Company created and deployed a Products Group, created alliances that helps in deciding Product directions, evolve specifications and finally get the product to the customers. The Company had created and deployed wholly owned subsidiaries namely Nucleus Software Japan Kubushiki Kaiga and Nucleus Software (HK) Ltd in November of the year 2001 and in March of the year 2002 respectively. Nucleus Software ranked amongst the 'Top 5 product companies' by NASSCOM in the year of 2002. During the year 2003, NSEL had assessed at SW-CMM Level 5 based on the Capability Maturity Model (CMM) and also Nucleus Software broadened its footprint operations into into partnership with Langchao group, China. The Company had received the award for 'Outstanding Contribution in Tech Adoption' from Sun Microsystems during the year 2004.

NSEL had signed a joint marketing agreement with Sun Microsystems in the year of 2005 and also signed a contract with Jordan-based Arab Bank, for implementing its loan originating system (LOS) in September of the same year 2005. First Bank of Nigeria (FBN), one of the largest banks in Africa, selected Nucleus' flagship solution - FinnOne TM CAS, Lending & Collections Suite, by way of this, the company made its foray into African region in August of the year 2006. In October 2007, Amlak Finance PJSC, the largest publicity Islamic real estate company and NSEL had signed a contract to utilize the company's vibrant product FinnOne. The Company had opened its new development centre in Chennai in November of the year 2007 as it sees increasing demand from South Asian market.

FinnOne Loan Organisation System of the company goes live at Bank of the Philippines Islands in January of the year 2008. NSEL bagged new client in April of the year 2008 namely Reem Finance, a non banking financial institution operating out of its headquarters in Dubai. NSEL has added six new modules to the upgraded version of its flagship product FinnOne version 3.5 in November of the same year 2008.