CloudSponge For Marketplaces

Grow Your User Base & Build Community Faster

Email Contact Importing for Marketplaces

Raise more funds and accelerate donor growth by giving users access to their contacts while on your website. CloudSponge is the simplest way to get users to share Crowdfunding campaigns with people they contact on a regular basis.

It literally took us 10 minutes to integrate with CloudSponge and it doubled the number of invitations sent by our customers

Dafeng Guo


Integrating CloudSponge was a snap. It makes it easy for our users to invite their friends and family to join Kiva.

Paul Ericksen

Senior Software Engineer, Kiva

We picked CloudSponge because of the features they offer coupled with their robust SDKs and support.

Tim Cederman-Haysom

Director of Product, SurveyMonkey

Since implementing CloudSponge … more customers get through the process of sending an eCard.

Mike Bracco

Product Manager, JibJab

CloudSponge has been doing an excellent job for us. The team has been extremely helpful and responsive to our needs.

Andy Hao

Chief Technology Officer,


Gain access to more potential users. Email address books contain an average of 350 email contacts.


Immediately integrate with over 30 popular email providers like Gmail, Outlook, and Yahoo.


Keep users from leaving your site to look up their friends’ email addresses. Our widget keeps them in their browser, on your site, focused on selecting friends from their address book to send invites and reducing site abandonment.


Your users’ data is safe: We purge every email address that passes through our system after it’s delivered to our client. So far we’ve wiped over 4 billion (with a B) email addresses.

How Marketplaces Use CloudSponge

  • Allow users to easily invite friends, family, and colleagues contained in their address books to participate in your marketplace without leaving your site.

  • Make it easier for users to share listings and new opportunities by giving them access to their friends, family, and colleagues in their contact address book.

  • Amplify your reach by letting customers share bookings, listings, and activity from your marketplace with contacts in their address book.

    Allow vendors and service providers to share listings with their network and encourage activity in your marketplace.

  • Build community within your platform by leveraging email address books to foster connections between users or vendors.

  • Grow your user base more rapidly by identifying webmail contacts not currently utilizing your platform and making it easier to send invitations.

  • Create tools that allow users to send discounts, credits, and reward incentives to aid signups for your marketplace and drive viral growth.

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