Software Companies in Bangladesh With 20+ Years of Experience (2026)
Published by Kaz Software. Last reviewed November 11, 2026.
A software company that has operated for 20 years or more has seen several technology cycles, kept clients through them and built a support history you can check. That is not the same as being the best choice, but it is a useful filter when you cannot afford a vendor that disappears. This guide lists nine companies from our Top 25 Software Companies in Bangladesh (2026 Guide) that report founding years in 2004 or earlier.
Editor's note: Kaz Software publishes this guide and lists itself where its work fits. The order follows our Top 25 Software Companies in Bangladesh (2026 Guide) and is editorial judgment, not a scored or audited ranking. Figures marked “self-reported” come from each company's own website and have not been independently verified.
Software companies in Bangladesh with 20+ years of experience
Company | Founded | Years in operation in 2026 | Known for |
Southtech Group | 1996 | 30 | Microfinance software and ERP |
DataSoft Systems Bangladesh | 1998 | 28 | Government and corporate systems |
LeadSoft Bangladesh | 1999 | 27 | Core banking (BankUltimus) |
BJIT Group | 2001 | 25 | Large dedicated teams; Japan-market work |
Dynamic Solution Innovators (DSi) | 2001 (self-reported) | 25 | Team augmentation; OpenCRVS |
REVE Systems | 2003 | 23 | VoIP and contact-centre software |
ReliSource | 2003 | 23 | Medical-device and IoT software |
Kaz Software | 2004 | 22 | Custom software and AI |
Therap (BD) | 2004 | 22 | SaaS for disability services |
Founding years come from each company's own site or a press profile. Public profiles sometimes disagree by a year or two, so treat the years as approximate. The “Years in operation” column is simply 2026 minus the founding year.
How we chose these nine
We took the companies in our main guide with a reported founding year of 2004 or earlier. Companies are listed from oldest to youngest. We did not audit any founding date, and age alone says nothing about quality.
The nine companies
Southtech Group (1996)
Southtech sells Ascend Financials for microfinance institutions plus HR, retail and POS, ERP, VAT and insurance systems. It reports offices in Bhutan and Myanmar and CMMI Level 5 certification (self-reported). It suits microfinance institutions, banks and retailers in South Asia.
DataSoft Systems Bangladesh (1998)
DataSoft builds systems for government and corporate clients. In 2014 it became the first Bangladeshi company appraised at CMMI Maturity Level 5, as reported by the company and by CBI, the Dutch government's import-promotion agency. The Daily Star reported in May 2020 that it developed the IoT backbone application behind an air-conditioner device that Johnson Controls-Hitachi launched in Japan.
LeadSoft Bangladesh (1999)
LeadSoft, a subsidiary of LEADS Corporation, developed BankUltimus, a core banking system. Western Group bought LEADS in July 2024, and The Financial Express reported in August 2026 that 13 Bangladeshi banks run LEADS' core banking software. See our Top Banking and Fintech Software Companies in Bangladesh (2026).
BJIT Group (2001)
BJIT started as a Japanese-Bangladeshi joint venture and reports more than 750 engineers and offices in Japan, the US, Sweden, Finland, the Netherlands, Singapore and Thailand. It was on both the FY2024-25 and the 2022 five-year BASIS top-ten exporter lists.
DSi, REVE Systems and ReliSource (2001 to 2003)
DSi embeds AI, enterprise, mobile, DevOps and QA engineers in client teams and reports OpenCRVS, an open-source civil registration platform. REVE Systems, founded in 2003, sells telecom and contact-centre software to customers in 82+ countries. ReliSource, founded in 2003, engineers medical-device and healthcare software from device to cloud. See Foreign-Owned Software Companies in Bangladesh (2026 Guide) for how each is structured.
Kaz Software (2004)
Kaz has built custom software from Dhaka for 22 years and has an office in Bern, Switzerland. It staffs full project teams and works across tax and trade, NGO and development programmes, e-commerce, ed-tech and fintech (self-reported). It was on The Business Standard's 2022 five-year list of BASIS members' ten largest exporters.
Therap (BD) (2004)
Therap (BD) is the development and operations hub of US-based Therap Services. It builds SaaS for services supporting people with disabilities and reports 7,000+ customers (self-reported). It builds its own product rather than client projects.
What 20 years gives you, and what it does not
A long track record gives you | It does not guarantee |
References across several technology cycles | That the current team uses modern tools |
A support history you can ask clients about | That the people on your project have stayed |
Processes that have survived growth | That those processes suit your project |
Less risk that the company disappears | That it moves fast enough for a startup |
What to ask an established software company
What did you ship in the last 12 months? Ask for recent work, not only famous old clients.
What technology does the team use today, and how do you retrain people when it changes?
How long do engineers stay on an account like mine?
Can I speak to a client who has worked with you for five years or more?
Can you show your trade licence and company registration? Check the founding date with the Registrar of Joint Stock Companies and Firms if it matters to you.
How will you hand over? An established company should be able to explain its handover process in detail.
Where this list fits
This is one of our shortlists by need. For the full field, read the Top 25 Software Companies in Bangladesh (2026 Guide), and for companies that are newer and faster-moving, see Best Software Companies in Bangladesh for Startups and MVPs (2026). For size and exports, read Biggest Software Companies in Bangladesh by Size and Exports (2026).
Frequently asked questions
What is the oldest software company in Bangladesh?
Among the companies in our Top 25, Southtech Group reports the earliest founding year, 1996. We have not checked every software company in the country, so this is not a claim about the whole industry.
Are older software companies better?
Not automatically. Age gives you a track record you can check, but you still need to confirm that the current team has the skills your project needs.
How long has Kaz Software been operating?
Kaz Software reports building custom software from Dhaka since 2004, which is 22 years in 2026.
How can I check when a company was founded?
Ask for the trade licence and company registration, and compare them with the company's own site and public profiles. Dates sometimes differ by a year or two between sources.
Sources and company sites checked
Talk to Kaz Software
Want a team with a 22-year track record that still ships new work? Tell us what you are building. Contact Kaz Software.
Related reading: Top 25 Software Companies in Bangladesh (2026 Guide), Biggest Software Companies in Bangladesh by Size and Exports (2026), CMMI and ISO Certified Software Companies in Bangladesh (2026), Top 10 Software Companies in Bangladesh (2026 Guide), Top IT Companies in Bangladesh (2026 Guide) and Best Software Outsourcing Companies in Bangladesh (2026 Guide).
