You can filter in many ways your contacts, companies, target accoutns in HubSpot by choosing many filters and create views. This is very powerful and highly customizable to your needs. To learn more: View and filter records. If you need, poke me I’ll post a video on this.
If you need to view companies by industry on a regular basis I would suggest creating a saved view so you can quickly see the information, and / or create an Active list if you’d like to use the information for emails, workflows and reporting. If ‘banking’ is too broad an industry you could always create a ‘sub-sector’ property and add specfic values.
Both contacts and companies have ‘Industries’ so it might also be worth creating a workflow to copy an inustry to a contact to make sure they’re consistent. I often see differences or gaps in data due to industry info