Outsourcing Services: Many Bangladeshi IT companies offer outsourcing services to clients around the world. This includes software development, web development, mobile app development, and IT support services.

Custom Software Development: Bangladeshi software companies develop custom software solutions for businesses in various industries, including healthcare, finance, e-commerce, and more.

Mobile App Development: Bangladeshi developers create mobile apps for Android and iOS platforms. Some apps are designed for local markets, while others target global audiences.

IT Education and Training: Bangladesh has a growing number of IT training institutes and universities offering bangladeshi software firm programs in computer science and related fields. These institutions produce a skilled workforce for the IT industry.

IT Parks and Incubators: The country has established IT parks and technology incubators to foster innovation and support startups in the tech sector.

Software Products: Some Bangladeshi software companies develop and market their own software products, such as ERP (Enterprise Resource Planning) solutions, HR management software, and more.

E-Government Initiatives: The Bangladeshi government has been investing in various e-government initiatives, including developing software systems for online services, digitalizing administrative processes, and enhancing cybersecurity.

Freelance Software Development: Many individual software developers from Bangladesh also participate in the global freelance market, offering their skills and services on platforms like Upwork and Freelancer.

Open Source Contributions: Some Bangladeshi developers and organizations contribute to open-source projects and collaborate with the global open-source community.

Please note that the state of the software industry in Bangladesh may have evolved since my last knowledge update in September 2021. The country's software industry is likely to continue growing as it benefits from a young and tech-savvy workforce and government initiatives to promote the IT sector.