ADDENDUM is a software development and IT outsourcing company with more than two decades of experience. The firm serves clients in the Financial Services, Telecom, and Government sectors, with a client roster that includes Western Union, Telia, Luminor Bank, the US Senate, Swedbank, and SEB Bank. Its operations span offices in Los Angeles and the Baltic states of Lithuania, Latvia, and Estonia.
The company delivers enterprise software solutions, data management and business intelligence services, and ongoing IT support and maintenance. A core part of its offering is team augmentation, providing specialists such as DevOps engineers, System Architects, Project Managers, Developers, and QA specialists to work as integrated or self-managed units within client organizations. Quality assurance testing is also a standalone service line.
ADDENDUM positions itself as a technology-agnostic partner, emphasizing scalable, technology-independent solutions tailored to client requirements. The firm holds ISO 9001, ISO 14001, SA8000, and OHSAS 19001 certifications, reflecting rigorous quality and operational standards.
