Services · appending
Data appending
RampedUp provides appending for both Contact and Company data. What is the difference? The output. Contact appending returns the person and the company they work for; company appending returns the company only.
Both are available in the user interface and through the API. You send what you have; you get back what was missing, plus an honest report on what could not be matched.
Two kinds of appending
Company on the left, contact on the right — each with its own inputs and its own field set.
Company Appending
Company Data Appending takes the inputs below and performs a waterfall process to append company-level data. Starting with our unique ID (RUID) and working down to Company Name, the waterfall uses location data to pick the most appropriate record where more than one shares the same attributes.
Matched in this order, strongest identifier first
- Company RUID — the RampedUp identifier, where you already hold one.
- LinkedIn company URL — an unambiguous public handle for the entity.
- Company website, exact match — the full URL as held.
- Company root domain — falling back from the exact URL to the root.
- Email domain — derived from a contact address on the record.
- Other company website — redirected sites, career sites and investor relations. See web identity.
- Company name, filtered by location — the weakest key, used last and constrained by address number, postal code, region, country and parent to avoid false positives.
Contact Appending
Contact Data Appending is available in the user interface or the API to complete or update your contact data. Call the database with an email address or an email list and RampedUp returns the most recent publicly available data about that individual or group.
It also flags outdated records and updates them with the new employer, so you can follow a former customer to their new company — and retire records that are no longer viable, even where email validation gives no indication the person left.
What it does to a record
- Standardization
- Standard industry, title, department and level — so your segments mean the same thing across every record, not just the ones a rep typed carefully.
- Enrichment
- Up to 60 fields of data to fill in the white space around a name and an address.
- Deduplication
- The same person often sits in your database under two or three email addresses, or none. Appending resolves them to one person with one unique ID.
- Digital advertising
- Fields shaped to be accepted by Facebook, LinkedIn and Google, so a CRM segment can become an audience.
Switching supplier
Bill LennonOwner and CEO, Group BDO
As GroupBDO had to make the change from our former database supplier, we were, quite frankly, a little scared of what the marketplace presented to us. We were used to getting contacts from our named accounts quickly and without fuss. We are glad that we did and have been very happy with our data quality and the ease of use.
Fill rates you can check before you send anything
Counted across 895,093,624 profiles in the August 2026 build.
| Field | Global records | Global fill | US records | US fill |
|---|---|---|---|---|
| Phone number (any) | 312,173,626 | 34.9% | 105,317,136 | 50.7% |
| Primary contact record | 290,448,815 | 32.4% | 82,229,823 | 39.6% |
| Professional email | 169,177,208 | 18.9% | 53,946,319 | 26.0% |
| Personal email | 118,889,852 | 13.3% | 56,027,211 | 27.0% |
| Mobile number | 66,560,909 | 7.4% | 53,918,921 | 26.0% |
Match rate on your own file depends on what you send and how aged it is. Send a sample and you get the real number back before committing — typical list turnaround is 24 hours, or roughly one second per contact record.
Take a Deeper Dive into the Knowledge Base
Step-by-step articles and how-tos from the RampedUp Knowledge Base.
There’s an API for that
Everything on this page is also an endpoint. Searching and counting never decrement credits.
Append Contact Details, Company Details and Validate Email Addresses for multiple contacts. Results are queued. Suggest using the call back API to get list results.
Endpoint
Manual_Append/post_manualappend_append
Open Batch Contact Append in the Swagger portal All endpoints
Start with the number.
Tell us the segment you actually sell to and we will send the exact count, the fill rates for that slice, and a sample — before anyone asks you for a budget.