B2B Lead List Building Services — ICP-Based Prospect Lists | LeadFindy
Lead List Building

B2B Lead Lists That Are Actually Targeted

ICP-based prospect research, multi-source enrichment, and triple-layer email verification. We'd rather ship 800 right contacts than 8,000 generic ones — and every email is verified before it ever reaches a sender.

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99%+
Deliverable
5 Days
Standard Delivery
12+
Data Points / Contact
What's Included

The Full Research Stack

Every list comes with the complete workflow — ICP definition through CRM-ready delivery.

ICP Workshop

60-minute working session to nail the persona — title, seniority, company size, geography, tech stack, and disqualifiers.

Multi-Source Prospecting

Pull from Apollo, LinkedIn Sales Navigator, Crunchbase, Clearbit, and proprietary scrapers — never one source alone.

Data Enrichment

12+ data points per contact — name, title, email, LinkedIn, phone, company size, revenue, tech stack, hiring signals.

Triple-Layer Verification

ZeroBounce + NeverBounce + MX-record check on every email. If it fails any layer, it's rejected.

Decision-Maker Mapping

For ABM lists, we identify all relevant buyers per account — economic, technical, user, and influencer.

CRM-Ready Delivery

Clean CSV with consistent columns + direct sync to HubSpot, Salesforce, Pipedrive, or your sending platform.

Data Points & Targeting

Filter As Narrow As You Want

Combine 12+ data attributes to surface the buyers most likely to convert — and exclude everyone else.

Every contact comes with 12+ data points

The list isn't just "name and email." It's a full enrichment file with everything you need to personalize at scale and segment intelligently in your CRM.

  • First name & last name
  • Verified work email
  • Job title & seniority
  • Department
  • LinkedIn URL
  • Direct dial (where available)
  • Company name & domain
  • Headcount band
  • Revenue band
  • Industry & sub-industry
  • Country & city
  • Tech stack signals
  • Funding stage & date
  • Recent triggers (hiring, raises)
Build Process

From Brief to Verified List in 5 Days

Five tight steps. No back-and-forth, no surprises. You see the file before you pay for it.

01
Day 1

ICP Workshop

60-min call to lock target persona, geography, and disqualifiers.

02
Day 2

Multi-Source Pull

Apollo, Sales Nav, Crunchbase, scraper layer — raw list compiled.

03
Day 3

Enrichment

Tech stack, funding, hiring signals, direct dials added per row.

04
Day 4

Triple Verification

ZeroBounce + NeverBounce + MX check. Anything dubious gets cut.

05
Day 5

Review & Deliver

You preview a sample, approve, and we ship the full file + CRM sync.

Verification Funnel

How a Raw List Becomes a 99% Deliverable One

Every list goes through a five-stage verification funnel. Anywhere from 25–35% of raw contacts get rejected — that's the point.

01

Raw pull from sources

Apollo, Sales Nav, Crunchbase, and proprietary scrapers — combined and deduplicated.

3,420
Raw contacts
02

ICP filter pass

Drop anything outside title, geography, or company-size criteria from the brief.

2,964
After ICP cut
03

Email syntax + MX check

Validate domain MX records and email format. Catch-all and role-based emails flagged.

2,712
After MX check
04

ZeroBounce + NeverBounce

Two independent verification APIs. Anything risky on either is dropped.

2,496
After dual verify
05

Manual spot-check

Random 5% sample reviewed by a human for plausibility, role match, and recent LinkedIn activity.

2,400
Final list
Data Sources

Eight Sources. Cross-Verified.

One source is a single point of failure. We pull, dedupe, and cross-reference across eight platforms for every list.

Apollo.io

275M+ contacts, intent signals.

LinkedIn Sales Nav

Real-time title & role validation.

Crunchbase

Funding rounds & company data.

Clearbit

Firmographic enrichment.

ZeroBounce

Primary email verification.

NeverBounce

Secondary cross-validation.

BuiltWith

Tech stack detection.

Custom Scrapers

Job boards & trigger signals.

Frequently Asked

Lead List FAQ

The most common questions about our list-building service.

Standard list delivery is 5 business days. Rush delivery in 48 hours is available for active Growth and Scale clients at no extra cost.
99%+ deliverable. Every contact passes three verification layers — ZeroBounce, NeverBounce, and an MX-record check. Anything that fails any one layer is rejected. We also do a manual 5% spot-check before delivery.
First name, last name, work email, job title, seniority, department, LinkedIn URL, direct dial (where available), company name, company domain, headcount, revenue, industry, country, tech stack, funding stage, and recent triggers like new role posts or product launches.
Very. Filter by job title, seniority, department, company size, revenue band, country, industry, tech stack (which CRM, which marketing tools, which hosting), funding stage, hiring activity, and recent triggers. Combine any number of filters — we'll show match counts before pulling.
All EU-region lists are sourced from publicly available business data and used under legitimate interest. We honour unsubscribes immediately, never include consumer or non-business contacts, and provide a clear opt-out path in every email sequence.
Both. Standalone list orders start at 1,000 verified contacts. Lists are also bundled in our Growth and Scale plans at no additional cost — the same list-building team that supports outreach clients builds standalone orders.

Need a Hyper-Targeted List This Week?

Tell us your ICP. We'll come back within 24 hours with a sample preview, exact match count, and delivery date.

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