Melissa Data Quality might be a bit more popular than RampedUp. We know about 1 link to it since March 2021 and only 1 link to RampedUp. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
We've been using a combination of RampedUp and SalesNexus. RampedUp for lead generation, and SalesNexus as a CRM for lead management, nurturing and email marketing automation. Seems similar enough, if you want to explore they've got a free trial for a month. Source: over 2 years ago
USPS isn't the only address validation. In fact, many businesses use Melissa. Check your address on USPS.com and also on melissa.com. If melissa doesn't have your address, you can submit a "suggestion" and hopefully they'll get that fixed for you. If it's USPS that doesn't recognize your address, then (I believe) your carrier has to correct it in his route book and then (eventually) it'll work it's way to usps.com. Source: over 2 years ago
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Loqate - The Standard in Global Address Verification
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