OSM Logo

B2B Lead List Building Service,
Built On Demand

Publicly available business listings, including Google Maps-listed businesses. Delivered in 24–72 hours as a clean CSV file.

No obligation. We will reply with scope and pricing after reviewing your request.

CUSTOM ON-DEMAND EXCLUSIVE

CUSTOM • ON-DEMAND • EXCLUSIVE

Not a marketplace. Not recycled data.
Built on demand for your exact request.

Built for B2B teams running outbound.

Custom lists built on demand. Exclusive to your request.

Compliance First

Sourced from publicly available business listings. Clients are responsible for outreach compliance.

Built on demand
🔒 Exclusive delivery
📊 CSV-ready
🕒 24–72 hour turnaround

What We Offer

We provide targeted B2B lead lists compiled from publicly available business listings, including Google Maps-listed businesses.

Each list is built on demand for your specific market, category, and geographic requirements. You tell us what you need, and we deliver a clean, ready-to-use CSV file within 24–72 hours.

Data Quality Checks

  • Structured fields for outbound
  • De-duplication within your order
  • Category and location labeling
  • Delivered as a clean CSV

What's Included in Every List

Business name
Phone number
Full address
City
Country
Category/Keyword
Website

Delivery format: Clean CSV file, ready for import into any CRM or outreach tool.

Who This Is For

SMB owners running outbound
Marketing agencies
Lead generation agencies
Outbound sales teams
B2B consultants
Recruiters and brokers
Growth and GTM teams

Why Buy Instead of Building In-House

Feature DIY / Tools Online Selling Machine
Speed Weeks of setup 24-72 hours
Focus Distracted team You focus on selling
Maintenance Ongoing tool management No tool setup to maintain
Exclusivity Shared data sources Built exclusively for you
🛡️

Exclusivity Guarantee

Every list is built on demand and delivered exclusively to one client. We do not reuse, warehouse, or resell lists. Exclusivity applies to the specific build request (market + category/keyword and requested scope).

Service Tracks

🎯
Core

Quick Batch

Fast outbound launches and market tests. Perfect for getting started quickly or testing a new vertical.

🔄
Request-Based

Agency & Team Batch Supply

Repeat batches delivered on request. No subscriptions. No weekly refresh promises. Order when you need.

🗺️
Project

Market Mapping Dataset

Larger structured datasets for expansion and territory coverage. Ideal for comprehensive market entry.

How It Works

1

Request a quote

Email us your market, category/keyword, volume, and deadline.

2

Confirm scope and price

We reply with a short proposal and invoice for your review.

3

Payment and build

Once payment is received, we start building your list.

4

Delivery (CSV)

Most orders are delivered within 24-72 hours.

Frequently Asked Questions

These lists are designed for multi-channel outbound. Phone numbers and addresses are core. Websites are included where available.

Most builds are delivered within 24-72 hours, depending on scope and volume.

Yes. Every list is generated on demand for a specific request.

Yes. Lists are built for one client and are not reused or resold.

No. We guarantee delivery of the requested data fields. Outreach results depend on execution.

We provide business data sourced from publicly available business listings. Clients are responsible for their own outreach compliance.

All lead lists are delivered as clean CSV files, ready for import.

Ready to Get Started?

Request a quote for your specific requirements.

📧

Email us for a quote

Include: market, primary category/keyword, volume, deadline.

Request a quote
📅

Book a quick call to discuss your requirements

Short call to understand your needs and confirm next steps.

Book a quick call
📞

Call the line

+44 333 090 3889

Urgent request? Speak to a strategist.