Codex Absolute has kept our books since 2009. From starting, their staff have become part of the WSI team and fit in well with the rest of the office staff. They run the bookkeeping including invoicing and any chasing of payments. Their work is accurate and they have the right balance between working autonomously and seeking the advice of one of the directors when required. They pro-actively recommends ways to improve our systems. I have no hesitation in recommending Sarah and her team to any other business.