Apollo.io vs BuiltWith: Data Enrichment Tool Comparison

Apollo.io vs BuiltWith: Data Enrichment Tool Comparison

Finding the right data enrichment tool can directly impact your revenue pipeline. Apollo.io and BuiltWith both aim to solve the same core problem (finding accurate contact data for target accounts), yet they approach it differently. Let's break down the specifics.

The Quick Answer

By each vendor's own wording, Apollo.io lists 210m+ contacts database and 30m+ companies, while BuiltWith lists technology lookups for individual sites and lead lists by technology. A capability both offer can appear under different names, so read both feature lists below.

Both start at the same price point ($0/mo), so the decision comes down to features and workflow fit.

If your priority is finding accurate contact data for target accounts, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.

Understanding the Core Difference

Apollo.io is All-in-one sales intelligence platform with 210M+ contacts, AI-powered campaigns, and built-in email sequencing.

BuiltWith is BuiltWith is a web technology profiler and lead generation tool that reports which technologies websites use and builds lead lists of companies by technology, spend and lifecycle signals. Individual site lookups are free; paid plans add technology reports, keyword reports and CRM integration.

The two platforms take different approaches to solving the same core challenge.

Pricing Comparison

Apollo.io Pricing (as of September 2026)

Source: Apollo.io Pricing

BuiltWith Pricing (as of September 2026)

Source: BuiltWith Pricing

Pricing Analysis

Both platforms start at the same $0/mo price point. The decision comes down to which feature set and tier structure works better for your expected usage.

Both platforms offer free tiers, so you can test each one before spending anything.

Features Breakdown

Apollo.io lists

• 210M+ contacts database
• 30M+ companies
• AI-powered multichannel campaigns
• Email deliverability guardrails
• Anonymous visitor identification
• Real-time form enrichment
• and 4 more listed below

BuiltWith lists

• Technology lookups for individual sites
• Lead lists by technology
• Keyword reports
• Retail reports
• Trends and technology history
• Predictive leads
• and 3 more listed below

Apollo.io Key Features

• 210M+ contacts database
• 30M+ companies
• AI-powered multichannel campaigns
• Email deliverability guardrails
• Anonymous visitor identification
• Real-time form enrichment
• Contact and company enrichment
• Advanced filtering
• CRM data cleansing
• Pipeline boards

BuiltWith Key Features

• Technology lookups for individual sites
• Lead lists by technology
• Keyword reports
• Retail reports
• Trends and technology history
• Predictive leads
• Advanced lookup of historical technology use
• Report prioritization by spend, technology use and location
• Unlimited report download

The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.

Listed only by Apollo.io

• 210M+ contacts database
• 30M+ companies
• AI-powered multichannel campaigns
• Email deliverability guardrails
• Anonymous visitor identification
• Real-time form enrichment
• Contact and company enrichment
• Advanced filtering
• CRM data cleansing
• Pipeline boards

Listed only by BuiltWith

• Technology lookups for individual sites
• Lead lists by technology
• Keyword reports
• Retail reports
• Trends and technology history
• Predictive leads
• Advanced lookup of historical technology use
• Report prioritization by spend, technology use and location
• Unlimited report download

Integration Ecosystem

Apollo.io Integrations

Apollo.io connects with: Salesforce, HubSpot, Outreach, SalesLoft, Marketo, SendGrid, LinkedIn.

BuiltWith Integrations

BuiltWith connects with: Pardot, Zoho CRM, Close.io, HubSpot.

Shared Integrations

Both tools integrate with: HubSpot.

Integrations listed only by Apollo.io: Salesforce, Outreach, SalesLoft, Marketo, SendGrid, LinkedIn.

Integrations listed only by BuiltWith: Pardot, Zoho CRM, Close.io.

Use Case Recommendations

Best Fit for Apollo.io

• Budget-conscious teams looking for an affordable data enrichment tool
• Teams that need a wide feature set (10 capabilities listed)
• Organizations with complex tech stacks needing broad integration support (7 integrations)
• Teams that want to start free and scale up as needs grow

Best Fit for BuiltWith

• Budget-conscious teams looking for an affordable data enrichment tool
• Teams that want to start free and scale up as needs grow
• Revenue operations teams building targeted prospect lists
• Marketing teams enriching CRM data for segmentation

Feature Comparison Summary

Getting Started Checklist

1. Define your B2B lead data and contact enrichment requirements and monthly budget
2. Estimate your expected data credits or contact lookups to find the right tier
3. List the integrations your team currently relies on
4. Sign up for free trials or demos of both platforms
5. Run a small test with each tool before making a commitment
6. Evaluate the onboarding experience and support quality

Final Thoughts

Apollo.io and BuiltWith both serve the B2B lead data and contact enrichment market. Apollo.io offers a more accessible entry point, while BuiltWith starts at $0/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.

Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.

Pricing and features verified as of September 2026. Visit Apollo.io and BuiltWith for current information.