The Companies Act 2006 requires all companies to file accounts with Companies House every year. The service is free for small companies. However, for larger companies there is a charge. The service is open to any company registered in England and Wales.
There is no one definitive answer to this question, as it can vary depending on the company and the specific services being offered. However, in general, most companies that offer company accounts services will allow any registered business to submit their accounts for processing. This typically includes businesses of all sizes, from sole proprietorships to large corporations. Some companies may have specific requirements or preferences in terms of the types of businesses they work with, but in general, most will be open to working with any registered business.
If you are a company owner, you are responsible for submitting your company's accounts to the relevant authorities. This is a legal requirement, and failure to do so can result in serious consequences. There are a number of different service providers who can help you with this process, so it is important to choose one that is reputable and has experience in dealing with the relevant authorities.