Since 2010 our mission has been to be the best single-point of integration for address books on the market.
Our products will improve the performance of your E-Commerce site, referral programs, invitation forms, contact importing workflows, and sharing features.
We help companies avoid the engineering nightmare of developing and maintaining in-house integrations with address book providers.
Maximize Your Sharing Per user
Our Contact Picker will make each of your users share with more people because they won’t have to type email addresses one-by-one or copy and paste them from a different window on their device.
World-Class Open & Engagement Rates
Address book data allows each and every one of the referral emails that your users send to be perfectly personalized with sender and recipient names in the From, Subject, and Body of every message sent.
Essential Sharing Analytics
Our analytics are hyper-focused on your sharing workflow so that you can zoom into the important details in a way that’s not possible with generic, one-size-fits-all analytics engines.
The Better Sharing Workbook
Simply download The Better Sharing Workbook, complete the exercises and get your e-commerce store ready to drive more sales – Just like other brands did with us! You will start making incremental improvements to your e-commerce store’s word-of-mouth features immediately.
More Leads. More Referrals. Better Virality.
For over 10 years, we've been helping e-commerce stores make more sales and reduce customer acquisition costs through better sharing.
What They're Saying
At least 2x referrals

“At least two times the people are getting a referral email now…Think about that. Obviously, having CloudSponge is hugely beneficial for us.”
10 minutes to integrate

“It literally took us 10 minutes to integrate with CloudSponge and it doubled the number of invitations sent by our customers.”
72% increase in reach

“We were averaging a count of 10.6 donors per family. After implementing CloudSponge we average about 18.2. So that’s a 72% increase in the number of contacts reached thanks to CloudSponge.”
Companies from every industry
use CloudSponge to get access to their users'
address books.
E-Commerce and Online Retailers
Crowdfunding and Equity Crowdfunding Platforms
Marketplaces
Social Networks
Events and Ticketing
Non-Profits and Charities
Political Campaigns and Causes
The Better Sharing Workbook
Simply download The Better Sharing Workbook, complete the exercises and get your e-commerce store ready to drive more sales – Just like other brands did with us! You will start making incremental improvements to your e-commerce store’s word-of-mouth features immediately.