Enrich Your Lead Lists in Seconds

Append missing contact info to incomplete lead lists. Get email, phone, job title, company data for cold outreach that actually converts.

Your Lead Lists Are Missing 40% of Contact Data

Incomplete Data

You have names and company names, but missing email addresses, phone numbers, and job titles. Cold outreach stops before it starts.

Manual Lookup Wastes Time

Your team spends 20 minutes per contact hunting LinkedIn, company websites, and email finders. 100 leads? 30+ hours wasted.

Stale Data Gets Bounces

Old contact info in your CRM sits idle. People change jobs, emails deprecate, phone numbers rotate. Your pipeline leaks.

Three Steps to a Complete Lead List

1

Upload Your List

Drop a CSV with names and company data. Works with first name, last name, company, or partial email. We handle messy data.

2

We Enrich In Real Time

Our database queries 500M+ contacts across 100+ sources. Returns email, phone, job title, LinkedIn URL, company size, funding stage.

3

Download and Launch

Get a complete CSV back with match confidence scores. Integrate with Outreach, Apollo, or your CRM. Or use our built-in cold outreach sequences.

Built for Sales Teams That Move Fast

98% Accuracy Rate

We verify every contact against multiple data sources. If we can't confirm it with high confidence, we don't guess. Your reputation stays clean.

Bulk Upload or API

Upload 10 leads or 10,000. Process them via web dashboard, CSV, or our REST API. Connect it to your workflow engine and go.

Native CRM Sync

Enrich data flows directly into Salesforce, HubSpot, Pipedrive, or Clay. No manual copy-paste. Updates sync weekly so your data stays fresh.

Compliance Built In

GDPR and CCPA compliant. We don't scrape, we don't resell, we don't broker data. Pure B2B contact enrichment.

Intent Data Layer

See which contacts recently visited your website, engaged with your content, or signaled buying intent. Prioritize hot leads.

Flat Rate Pricing

Pay per successful contact appended, not per API call or monthly seat. 100 enrichments cost the same to you whether they take 1 minute or 1 week.

2.3M+

Contacts Enriched Monthly

98%

Accuracy on B2B Data

3.2x

Average Reply Rate Lift

30 min

Response Time

Works Across Every Vertical

SaaS Sales Teams

  • Enrich marketing-qualified leads before outreach.
  • Append job titles and department roles to build truly targeted sequences.
  • Verify email domains to avoid spam complaints.

Staffing and Recruiting

  • Bulk enrich candidate names to find their job titles and industries.
  • Append phone numbers for cold calling candidates directly.
  • Keep recruiter contact data fresh across job transitions.

Account-Based Marketing

  • Enrich target account lists with key decision maker contact info.
  • Layer in funding and revenue data to identify high-intent accounts.
  • Map entire buying committees before campaign launch.

Inside Sales and Cold Outreach

  • Build dial lists from prospect names and companies alone.
  • Get direct phone numbers and email for first-touch outreach.
  • Reduce list-building time from hours to minutes.

Simple, Transparent Pricing

Starter

$0.15/contact

Perfect for testing the waters

  • Pay as you go, no minimums
  • Email and phone append
  • Job title and company data
  • CSV upload or API

Growth

$0.10/contact

Most popular for scaling teams

  • Everything in Starter, plus:
  • CRM integrations (Salesforce, HubSpot)
  • Bulk workflow automation
  • Weekly data refresh
  • Priority support
  • 10,000+ contacts/month

Enterprise

Custom/month

For large-scale enrichment

  • Everything in Growth, plus:
  • Custom data fields
  • Dedicated account manager
  • SLA on accuracy and uptime
  • White-label options
  • Unlimited contacts

Frequently Asked Questions

How accurate is the enrichment data? +
We maintain a 98% accuracy rate on primary fields (email, phone) and 94% on secondary fields (job title, company size). We source from verified databases and cross-check against multiple data providers. If we can't verify a contact with high confidence, we mark it as uncertain rather than guess.
How fast is the enrichment? +
Most enrichments complete within 30 minutes. Bulk uploads of 1,000+ contacts typically process within 2 hours. API calls return results within seconds where data is already cached.
What if the contact isn't found? +
We return a no-match result and don't charge you. You only pay for successful enrichments. Our average match rate is 67% on B2B lists, higher on US-based contacts.
Can I use this for cold email campaigns? +
Yes, and we actively help. Our data is fresh, verified, and GDPR compliant. We provide bounce rate guarantees below 2% on our enriched email addresses. You're compliant with CAN-SPAM and equivalent regulations out of the box.
How do you keep data fresh? +
We refresh synced contacts weekly. Email domains are verified daily. Phone numbers are validated against telecom records. Job title and company updates flow in real time as we detect changes across LinkedIn and our partner sources.
Do you have an API? +
Yes. RESTful API with webhooks, rate limiting at 100 req/sec, and SDKs for Node, Python, and Go. Documentation at api.contactappend.com/docs. Sandbox environment available for testing.

Ready to Stop Wasting Time on List Building?

Start enriching lead lists today. No credit card required.