Immediate Ready-made USA B2B Lead List

I am looking to purchase a ready-made database of U.S. B2B contacts that I can start working with today—no time for custom scraping or week-long builds. The list should cover companies across technology, healthcare, finance and any other sectors you already have on hand; breadth is welcome as long as the data is fresh. For every contact I must have at minimum: • A valid business email address • A direct phone number Job titles should be senior enough to influence buying decisions—C-level executives, managers and sales representatives are all in scope. Please tell me: • The total number of leads available • How recently they were verified • Your average bounce rate or accuracy guarantee • The file format you can deliver (CSV or Excel preferred) If you can share a small sample so I can test deliverability, that will speed up a quick purchase decision. I’m ready to close as soon as the data checks out.