There is no map pack for most B2B categories, so the local visibility layer that drives a clinic or a contractor does very little here. The equivalent in B2B is the set of third party surfaces your buyers check before they shortlist, and it differs by segment.
Software buyers validate on G2, Capterra, and Software Advice, then read comparison pages before booking a demo. Professional services buyers check Clutch, UpCity, and analyst lists. Industrial and manufacturing buyers work through Thomasnet, GlobalSpec, IndustryNet, and trade association directories, where specification level detail carries more weight than marketing copy.
Those profiles need to be complete, consistent with your site, and current, because they feed both traditional rankings and the answer engines summarizing your category.
Comparison and alternatives content is the other half. Buyers search your competitors by name during evaluation. If nobody on your side has written the honest comparison, a third party site has, and it controls the framing.
Distribution reinforces the rest. Organic search and LinkedIn Ads management reach the same buying committee twice, a compounding effect you do not get in consumer verticals. Ontario suppliers who want regional procurement teams to find them should still keep a Google Business Profile accurate, but it is a supporting signal here rather than the engine.