# Free B2B Contact & Data Enrichment Tools Directory

> A vetted, categorized list of free-tier tools for finding verified emails, direct dials, firmographic data, and trigger events, with what each free tier actually gives you and where the limits bite.

Free directory for sales teams. Topic: [Prospecting & Outbound Strategy](https://www.peerlab.ai/library/topic/prospecting-outbound-strategy/). Published by PeerLab in the [Sales Enablement Resource Library](https://www.peerlab.ai/library/). Source: https://www.peerlab.ai/library/free-b2b-data-enrichment-tools-directory/

## How to use it

Match your immediate need (email, phone, firmographic, tech-stack, or trigger-event data) to the right category, start with the most generous free tier for that category, and re-verify limits before scaling volume through any single tool.

## What's inside

- Email finding & verification tools with current free-tier limits
- Direct dial / phone data tools with current free-tier limits
- Firmographic & company data tools (free tiers)
- Tech-stack detection tools (free, unlimited)
- Trigger-event / intent monitoring tools (free, unlimited)
- Social/LinkedIn enrichment tools (free trial)
- CRM-adjacent free enrichment options
- Directory maintenance notes, how to avoid building process on a tool that's about to change tiers

Reviewed July 2026. Free-tier limits on paid platforms shift often, treat the numbers below as directional and re-check the vendor's pricing page before you build a process that depends on volume.

## Email finding & verification

| Tool | Free tier | Best for |
|---|---|---|
| **Hunter.io** | 25 searches/month | Fast domain-pattern email lookup |
| **Apollo.io** | ~100 credits/month (email + phone combined) | Best all-around free tier; also gives basic firmographic data |
| **Snov.io** | 50 credits (trial-style, not a permanent free plan) | One-time list-building push |
| **RocketReach** | 5 lookups/month | Occasional single lookups only, tightest limit on this list |

## Direct dial / phone numbers

| Tool | Free tier | Best for |
|---|---|---|
| **Lusha** | ~70 credits/month (varies by promo, verify at signup) | Direct-dial-heavy prospecting on a budget |
| **Apollo.io** | Included in the combined credit pool above | Phone + email in one tool |

## Firmographic & company data

| Tool | Free tier | Best for |
|---|---|---|
| **Crunchbase** | Free basic company profiles, funding history | Trigger-event research (funding rounds, leadership) |
| **HubSpot free CRM** | Unlimited free CRM with basic company insight panel | Central home for enriched records at zero cost |

*Note: Clearbit's free Connect tool was discontinued in 2025 and folded into HubSpot Breeze, it's no longer a standalone free option. Don't build a process around it.*

## Tech-stack detection (free)

| Tool | Free tier | Best for |
|---|---|---|
| **Wappalyzer** | Free browser extension, unlimited manual lookups | Quick "what are they running" check per account |
| **BuiltWith** | Free basic lookup per domain | Cross-check against Wappalyzer for confidence |

## Trigger-event / intent monitoring (free, effectively unlimited)

| Tool | Free tier | Best for |
|---|---|---|
| **Google Alerts** | Free, unlimited alerts | Funding, leadership change, press mentions |
| **LinkedIn "notify me" on job changes** | Free | Champion/EB moved companies: instant re-engagement trigger |
| **SEC EDGAR full-text search** | Free, unlimited | Public-company filings for enterprise trigger events |

## Social / LinkedIn enrichment

| Tool | Free tier | Best for |
|---|---|---|
| **LinkedIn Sales Navigator** | Free trial (check current trial length at signup) | Advanced search + lead lists during the trial window |
| **Native LinkedIn search** | Free, always | Baseline company/title search without any tool |

## Directory maintenance notes
- Free tiers are the first thing vendors cut when they raise prices: re-verify every tool's current limit quarterly, not just at first use.
- Never build a critical daily workflow around a single free-tier tool with a hard monthly cap; rotate 2–3 tools across the team to stay under limits.
- Treat any free enrichment data as a starting hypothesis, not a verified fact, confirm role/title changes with a LinkedIn glance before outreach.