1
Static source
Static database providers
Completing business or consumer contact lists
Send your file and choose the fields you want filled. We search live sources for each missing field when you order, and you pay for the records we fill.
Your free test returns 10 filled records within one working day. Nothing owed.
| AName | BCompany | CLinkedIn URL | DWork email | EMobile number | FA field you name |
|---|---|---|---|---|---|
| Farid Ulmbury | Harlow Freight | linkedin.com/in/farid-ulm••• | f.ulmbury@•••.com | +1 614 555 ••61 | Salesforce, HubSpot |
| Carmen Orlholt | Bluefen Analytics | linkedin.com/in/carmen-orl••• | c.orlholt@•••.com | +1 813 555 ••92 | Microsoft 365, Zendesk |
| Aisha Ulmwell | Oakline Components | linkedin.com/in/aisha-ulm••• | a.ulmwell@•••.com | +1 919 555 ••46 | AWS, Snowflake |
| Ethan Hescombe | Northgate Logistics | linkedin.com/in/ethan-hes••• | e.hescombe@•••.com | +1 615 555 ••94 | HubSpot, WordPress |
Swipe sideways to see every column.
Why most data providers match fewer records
They fill your list from one static database. We read 1000+ live sources per missing field when you order, closing more gaps.
Static source
Static database providers
Data sources
Data resellers mix databases into lists.
Data sources
Enrichment tools check database after database.
Live sources
BookYourData
Sources we check for each missing field
| Static database providers | BookYourData Live sources | |
|---|---|---|
| Coverage | Matches stop where their database stops, so plenty of your fields come back blank. | We match untapped contacts, often filling far more mobiles and emails. Depends on your list. |
| Data sources | The usual data provider matches your file against a single static database. | We search 1000+ live sources for each missing field. |
| When data was found | The usual data provider works from records collected months or years before your order. | We research your records at the time of your order. |
| Your work | You get a platform to learn, then run each search yourself. | You send the file. We do the work and it comes back filled. |
Every field we fill
We fill 7 field groups, emails, phone numbers, reverse lookups, LinkedIn profiles and job titles, plus company details, postal addresses, and consumer data. Reverse lookup goes the other way. We find who a phone or email belongs to.
We match each record from a name and company, an email or a phone, and where we match, our business and consumer data fills in the missing details. Each value comes from a source.
Read our data enrichment definition, types and benefits guide.
| What you hold | Fields we add | |
|---|---|---|
| Email address | Name · Job title · Seniority · LinkedIn URL · Mobile number · Direct dial · Personal email · Company data · Postal address · Demographics (consumer) · Household and homeowner (consumer) | |
| LinkedIn URL | Work email · Personal email · Mobile number · Direct dial · Job title · Seniority · Work history · Company data | |
| Phone number | Name · Email · Postal address · Company · Job title | |
| Name + Company name or website | Work email · Personal email · Generic email (info@, sales@) · Mobile number · Direct dial · Company main phone · LinkedIn URL · Job title | |
| Name + Postal address | Personal email · Mobile number · Demographics (consumer) · Household and homeowner (consumer) | |
| Postal address | ZIP+4 and carrier route · Geocode (latitude and longitude) · County and time zone · Home value · Demographics (consumer) | |
| Company name or website | Industry (SIC/NAICS) · Revenue · Employee count · Company address · Company main phone · Generic email (info@, sales@) · Technographics · Funding rounds · Job postings · Key decision makers | |
| Any other field you hold | A field you name |
Send us the file you own. Then see the full list of fields we add to it.
What is email appending?
Email appending, or email append, is part of email enrichment, adding a work or personal email to a contact you have. We match on a name and company, a LinkedIn URL, a phone or an address.
Each appended email passes through our real-time email verification tool before delivery. Ready to use.
Phone appending
Phone appending fills in the missing phone numbers in a contact file you already own, and the same service goes by phone append, mobile append or cell phone append. We add mobile numbers and direct dials to the business and consumer records in your file. A direct dial is a person's own desk line.
Reverse phone and email lookups
Reverse phone lookup and reverse email lookup start from a phone or an email you already hold. The trade also calls them reverse phone append and reverse email append. Reverse appending adds the name, company, job title and postal address behind that phone or email.
LinkedIn URL appending
Also called LinkedIn profile enrichment, this service adds the profile link from a name and company, with job title and seniority. A URL alone works too. We fill in the email, mobile number, job title plus company details behind it.
Company data appending
Company data appending, also known as firmographic append, fills in missing company details on your existing records. You get SIC and NAICS industry codes, revenue, employee count, website and address. We also add technographics, the software a company uses. Recent funding and open job postings too.
What is address appending?
Address appending, also called mailing address appending, adds a postal address to your business and consumer records. Each record we fill comes back with a business address or a home address, and the result is a mailable list, ready for postal and direct mail campaigns.
What is demographic appending?
Demographic appending adds personal details to your contact file. We fill in age, gender and income for each contact we find, so you know who you are talking to before you send anything. Household size comes too. You also get homeowner or renter status, personal emails and mobile numbers for your consumer records.
Free data appending test
The free test shows what we fill where we match. No guesswork.
Pricing
$499
1,000 Filled records
$0.50 per record
$699
1,500 Filled records
$0.47 per record
$999
2,500 Filled records
$0.40 per record
$1,299
3,500 Filled records
$0.37 per record
$1,599
5,000 Filled records
$0.32 per record
$1,799
7,500 Filled records
$0.24 per record
$1,999
10,000 Filled records
$0.20 per record
$2,599
15,000 Filled records
$0.17 per record
$3,999
25,000 Filled records
$0.16 per record
$5,399
35,000 Filled records
$0.15 per record
$6,999
50,000 Filled records
$0.14 per record
$9,999
75,000 Filled records
$0.13 per record
$10,999
100,000 Filled records
$0.11 per record
$12,999
150,000 Filled records
$0.09 per record
$17,999
250,000 Filled records
$0.07 per record
A filled record holds the emails, phones and details you asked for. Jobs start at $499. The price per record drops as your count grows, and over 250,000 records, we price your file.
Over 250,000 records, we price your file.
We fill where we match.
A record we do not fill never lands on your invoice. Jobs start at $499.
File delivery
Wherever we match, fresh fields land in the tools you already use. You choose. Your CRM, the system holding your customer records, a CSV or Excel file with new columns, or an API, an automatic connection a developer sets up.
With CRM data enrichment, the new fields go straight into your CRM records, ready for your team to use.
We send your bulk CSV or Excel file back with new columns, keeping every original detail in place.
| AName | BCompany | CWork email New |
|---|---|---|
| Vera Rospike | Mosswood Veterinary | v.rospike@•••.com |
| Tessa Falwood | Arbor Lane Accounting | t.falwood@•••.com |
| Dmitri Undacre | Kestrel Machine Works | d.undacre@•••.com |
Your developer sets up our data enrichment API, an automatic connection that fills each record on its own, no files needed.
{
"name": "Owen Vorstead",
"company": "Tallis Brewing Co.",
"work_email": "o.vorstead@•••.com",
"mobile": "+1 208 555 ••20"
}Who it fits
Sales, marketing, recruiting and direct mail teams, plus owners whose contact list has gaps
Your CRM, the system holding customer records, has names and companies. Lead enrichment: we add mobile numbers, direct dials and emails to your contacts. Call decision makers directly.
Your website signups hold only an email. We add the job title and company details we find for each signup, so you follow up with the best leads first.
You already hold client contact lists. We append verified emails and LinkedIn URLs, so you launch client campaigns faster.
You hold LinkedIn URLs. We add the personal emails and mobile numbers behind them, so you reach talent directly.
Your CRM is full of half-empty records. We add the fields you name to matched records, into the CRM or by API.
You hold names and postal addresses. We add age, income, household data and personal email to your file, so you pick the right households for each offer.
You hold homeowner names and addresses, and we look up each contact and add the mobile numbers and homeowner details we find, so you reach homeowners on their mobiles.
You already hold attendee or subscriber emails, we add job titles and company data, so you follow up by role and company.
Your licence holder lists carry names and postal addresses. We add verified emails and mobile numbers where we match, so you reach licence holders directly.
You hold donor lists with names and postal addresses. We add personal emails where we match, so you reach donors by email and mail them too.
No card for your group. We append any list with gaps, yours included.
Your questions
Data appending basics
Data appending adds missing details to a contact list you already own. We search multiple live sources for each contact's missing fields when you place your order and add what we find. The industry calls this a form of data enrichment.
The difference is scope. Appending fills the blank fields you name, such as emails or phone numbers. Enrichment, also called contact enrichment, is the wider work of improving a whole list, and appending is part of it.
The process is simple. You send us your file, name the fields to fill, and we search live sources for each contact's missing details when you order. You pay only for the records we fill. Every email is verified before delivery.
We append emails, mobile numbers, direct dials, LinkedIn URLs and job titles. Company details and postal addresses are available as well, and for consumer records we also add age, income and household data. You choose the fields.
We add missing emails, mobile numbers, job titles and company data where we match. Choose your file in the form, CSV or Excel, and send it whole or in part. No file at hand? Send the request and we email a link.
Export it from your CRM as a CSV or Excel file, and our reply walks you through each step. Simple.
Price, delivery and compliance
Appending is priced per filled record, and jobs start at $499. Your total depends on the contacts we complete, so the price always tracks the work done on your file. Budgeting stays simple.
Yes. The price per record drops as your count rises. Above 250,000 records, you move to a custom quote shaped around the project.
No. Unfilled contacts are not billed. You pay only for filled records, so a contact that comes back empty costs you nothing. The invoice reflects results, not attempts.
Your completed records land in your CRM, arrive as a CSV or Excel file, or come in through our API. An API is an automatic connection your developer sets up, and once it is running the data flows without manual work. You pick the option that fits your setup.
Yes. Every appended email is verified before delivery. Nothing reaches your file until it clears that review, so every address you receive has already been checked.
Our data sets meet GDPR and CCPA, the privacy laws of the European Union and California. The records behind your appended fields come from those same data sets. Compliance is built into the data itself.
Questions about your results
Your results depend on your list, because match rates differ from file to file. Your free test shows your own count for each field, so you know what to expect before you commit.
A name plus a company gets you started. So does an email, a phone number, or a LinkedIn URL. A name with a postal address works too. If your contacts are kept in your CRM, export them to a file and send it to us.
Each value we add has a source behind it, so you know where a detail came from. Every email is verified in real time before delivery, so a bad address gets caught before it reaches your campaign.
Name it in the form when you send your file. The free test then shows whether we fill it, so you learn the answer on your own data instead of guessing. If we do not fill it, the test says so plainly.
Yes, we clean lists as well as append to them. Data cleansing fixes wrong or old details, data hygiene keeps a list in good shape, and deduplication removes duplicate contacts. Ask for these along with the file you send.
Getting started
Send your file with the form. You get 10 filled records free within one working day, and after that you pay for the records we match and fill.