# Cosavio > UK company secretarial compliance software for accountancy firms and formation agents. > Tracks Companies House identity verification, confirmation statements, filings and > statutory registers across a firm's whole client portfolio. Cosavio is a product, not an advisory firm. Guidance here explains how UK company law and Companies House process work; it is not legal or accountancy advice. Statutory dates, fees and penalties change — check gov.uk for the current position. ## Product - [Cosavio](https://cosavio.com/): what the product does - [Pricing](https://cosavio.com/pricing): plans, what's included, common questions - [Contact](https://cosavio.com/contact): talk to the team ## Guides - [Companies House basics](https://cosavio.com/resources/companies-house-basics): Practical Companies House guidance for accountancy firms: confirmation statements, identity verification and statutory registers. ## Glossary Definitions of UK company secretarial terms: https://cosavio.com/resources/glossary - [ACSP (Authorised Corporate Service Provider)](https://cosavio.com/resources/glossary/acsp): A firm registered with Companies House to carry out identity verification for the people it files for. Accountancy and company-formation firms register as ACSPs so they can verify directors and PSCs themselves. - [Confirmation statement](https://cosavio.com/resources/glossary/confirmation-statement): An annual Companies House filing (form CS01) confirming a company's registered details are up to date. It replaced the annual return in 2016 and does not include financial figures.