Hi, I assume you’re meaning your webpage that markets what you offer? If so, then yes I would list all of your services and products available as you want the best chance of converting any viewer of your page, to a sale. Your website will have meta data behind the content visible to the end-user, so also make sure that the visible content and meta data uses popular search words so that search engines pick up and index your page in search results. There is an intricate science involved with search engine marketing, so if you’d like more information about that I suggest posting in the digital marketing forum.
Hope this helps!