Bullets describe items that are usually not separable (so ranking and order are not important) and will not be referenced later. For example:
All applicants must provide the following documents:
- Application form
- Proof of address
If you need to reference them, then it is better to use:
All applicants must provide the following documents:
a) Application form
b) Proof of address
Item b) can be any utility bills, bank statements or letters from
government agencies.
And if ranking or order (e.g. steps to bake a cake) is important, then it makes sense to use numbering.
For writings that are less formal, bullets are fine. In formal writing, bullets make your writing seem compact and packed. If it is about an idea or description, it is recommended to unpack the ideas into separate paragraphs.
For your use case, I recommend writing it as separate paragraphs with headings, e.g.
Services of the company
(Insert details here)
Benefits of the service
(Insert details here)
Industries we serve in
(Insert details here)
Why choose us
(Insert details here)