Hi David,

Unbounce works with a number of third party tools. When you say “lead provider,” are you referring to a lead management system / CRM? If so, Unbounce works with HubSpot, Salesforce, Zoho, and others.

If you’re talking about email service providers, Unbounce works with all of the big ones such as ActiveCampaign, GetResponse, AWeber, Mailchimp, Infusionsoft and many more.

You can read a full list of the intregrations here: http://documentation.unbounce.com/hc/en-us/categories/200231284-Integrations

Also, important to point out is that Unbounce also ties into Zapier, which allows you to connect to a vast number of tools that aren’t directly integrated with Unbounce yet.

And lastly, Unbounce has a Webhooks feature that lets you create more advanced integrations. That’s usually the best method for connecting to a custom solution that isn’t accessible through one of the native integrations or the Zapier integrations. You can read more about that here.

I hope this helps!