Cost-effective Ways to Find Contact Numbers for Businesses on LinkedIn: Exploring Alternatives and Data Enrichment Queries

I have a list of small businesses from Linkedin which include the website, employee count, type, location, url and domain. What I would like to know is if there is a way to find each companies number without spending 25 credits per company? I'm looking at "enrich data" and see that to extract a number it costs 25 credits. Wanting to know if there is an alternative? Also curious if this is just for personal phone numbers or business numbers too.