FullContact is the only service I know of that can provide the information it does. Review collected by and hosted on G2.com.

We've ran into issues hitting their rate limits before, but that's a solvable problem. Review collected by and hosted on G2.com.

Easy to get started and use, and affordably priced. A critical piece of our infrastructure, and they've been reliable the entire way through. Review collected by and hosted on G2.com.

While the match rate is competitive, you'll still need to be careful if the data is customer facing in any way, as the incorrect entries can be jarring (e.g., incorrect pictures, etc.). Review collected by and hosted on G2.com.

FullContact gives you accurate information when you need it. Company data, individual data, etc. It's been a breeze to work with and their documentation is great. Review collected by and hosted on G2.com.

Serves its job "enriching" profiles and information but cannot do boolean searches (e.g. people at a particular company). Review collected by and hosted on G2.com.

The flexibility of the API and their pricing model Review collected by and hosted on G2.com.

For certain data points, data quality can become an issue Review collected by and hosted on G2.com.

When the data provided by the APIs is accurate, it’s great. Having a source where we can pull valuable data from just an email address or phone number has been very helpful for our clients. Review collected by and hosted on G2.com.

The data isn’t accurate as often as we need. We’ve had several cases (the number of which seem to be increasing) where the incorrect contact data would be pulled for an email, making our clients look bad when they reach out to someone with the wrong contact details. For the price FullContact charges, there should be nearly zero incorrect matches. There used to be a confidence percentage returned with results, but that was removed, and was now re-added with a premium price. Not an ideal implementation. Review collected by and hosted on G2.com.

Support team is really well disciplined and relatively fast. They respond to our team's requests and usually nothing is lost in transit. Review collected by and hosted on G2.com.

Nothing, they have been great. Sometimes the support replies are longer than usual, but they are usually right and positive. Review collected by and hosted on G2.com.

Full Contact gives us the ability to add a wide range of attributes to give a single, more complete and accurate view of each company Review collected by and hosted on G2.com.

Works well for our use case. We enrich our visitor data to provide more accurate targeting Review collected by and hosted on G2.com.

Full Contact API provides a path to develop greater insight into individual source development. The availability and scale of the platform work nicely across any demand we’ve had. Review collected by and hosted on G2.com.

Match rates can be as low as 40% depending on list. Review collected by and hosted on G2.com.

Using an email and/or a phone number, I can get some extra information about a Person on our site that helps provide a better experience to the user themselves as well us admins. Review collected by and hosted on G2.com.

The success rate of the Employment History add-on for the Person Enrich API is really low. Review collected by and hosted on G2.com.

It was easy to set up/get started. We only need to have an email address or phone number to get more data, which works well for our call-center based contractors. Review collected by and hosted on G2.com.

Sometimes the data results are mismatched which can be off putting if we contact a lead with the wrong information. Review collected by and hosted on G2.com.