upcell vs. Nimbler

upcell is a modern sales intelligence company built to eliminate the bloat, cost, and inefficiency of traditional B2B data platforms. At its core is a lightweight Chrome extension that allows sales reps to capture LinkedIn leads in one click, enrich contact data in real time, and sync everything directly to their CRM or engagement platform—without jumping between tools, tabs, or spreadsheets. Legacy data providers are built for complexity. They bundle dozens of features most teams never use, charge per seat, and require constant training and upkeep. As a result, reps avoid the platform, data gets siloed, and RevOps teams are forced to cobble together workarounds using multiple vendors and manual processes. The outcome? Slower teams, higher costs, and disconnected systems. upcell is designed to break that pattern. Instead of forcing reps into another platform, we bring the workflow to them. Our Chrome extension lives directly on top of LinkedIn and routes clean, enriched data to the tools teams already use—Salesforce, HubSpot, Outreach, Salesloft, Gong, and more. RevOps teams stay in control with flexible enrichment settings and field mapping, while reps stay in flow with zero disruption. In addition to the Chrome extension, upcell also offers a powerful data API that gives organizations access to verified contact data, mobile numbers, business emails, and actionable insights like champion tracking and intent signals—all without paying for bloated features they don’t need. The result is a leaner sales motion, faster adoption, and dramatically lower spend—without sacrificing data coverage or accuracy. upcell helps modern GTM teams do more with less and finally take control of their data stack.

Nimbler offers sales professionals and marketers a wealth of verified business contacts, boasting millions of personal and work emails that undergo real-time validation, along with mobile numbers. Users can effortlessly search for potential clients by utilizing various filters, including job title, seniority, department, industry, and geographical location. Thanks to our real-time data verification, your outreach emails are effectively directed to the appropriate audience. Best of all, Nimbler is completely free, providing unrestricted access to a wealth of quality leads and an unlimited number of user accounts. This ensures that your sales efforts are not only efficient but also effective in reaching the right targets.