The verdict
Both identify companies, not people, so either way you still need to reach the right person. For a small B2B team in Europe with a CRM and a process for fast follow-up, I'd pick Leadinfo. The decision-maker data finds you a person as well as a firm, and the CRM integrations are broad. Solid Growth is a certified Leadinfo partner, so weigh that. If you want outreach built into the same tool, and intent scoring that draws on behaviour away from your site, pick Albacross. Run both trials on your own traffic and compare the companies they name.