Whether you're targeting a B2C or B2B audience, at the end of the day, you are still communicating with individuals. All humans, regardless of the niche, have wants and needs to fulfill. Social media tactics known for B2C such as giveaway contests that offer an incentive for action, or developing content optimized for commenting (to instill a feeling of belonging), can also be used by B2B businesses to increase their reach.
From our experience, social media strategies used for B2C can be even more lucrative for B2B. Take inspiration from brands with similar values, even if their business model is different.