Custom List Building Services
A B2B program lives or dies on the quality of the list it runs against. Generic database exports — full of stale titles, role changes and dead emails — drag down deliverability, burn SDR hours and slow every pipeline metric you care about. Our Custom List Building Services replace that with a list designed specifically for your ICP, sales motion and channel mix.
Live · verified dataWhat’s inside the Custom List Building Services?
Our custom list building services is a done-for-you program run by operators who have carried a quota — from setup through weekly revenue review, we own the delivery. Programs integrate with Salesforce, HubSpot, Marketo, Outreach and Salesloft for end-to-end attribution.
Senior B2B operators handle strategy, execution and reporting under one accountable team. Weekly performance reviews tie every touchpoint to qualified pipeline and closed-won revenue — not just opens and clicks.
Engagements are scoped on day one with a written brief that locks success metrics, target volumes and exclusion rules. You'll know exactly what you're getting and what the program will cost before any work starts.
Every campaign runs against the same 180M+ verified B2B universe and the same compliance posture (GDPR, CCPA, CAN-SPAM, TCPA, CASL, DNC). No black-box vendor lists, no surprise compliance gaps.
We work across every major B2B platform — Google Ads, LinkedIn, Meta and Bing — plus dedicated email infrastructure and direct-dial calling. One vendor, one source of truth, one accountable team.
Every record is permission-based, re-verified at the moment of delivery, and filtered through regional compliance rules — so your campaigns land clean and deliverable.
What you can expect
The outcomes our clients consistently see from this program.
- Dedicated operator leading your program
- Weekly revenue review + reporting
- CRM native (Salesforce / HubSpot)
- Scale up or pause any time
A closer look at our Custom List Building Services.
Every engagement starts with a 30-minute working session to define titles, industries, geographies, company size and suppression rules. From there, our team compiles candidate contacts from public business directories, professional networks, permissioned partner feeds and proprietary research, then runs every record through tele-verification, email validation and NCOA processing before delivery. The result is a list you can hand to your reps and trust on day one.
Most lists ship in 48 business hours, delivered as CSV, XLSX or pushed straight into Salesforce, HubSpot, Outreach or Salesloft. Records arrive with verified work emails, direct dials, postal addresses and the firmographic fields your team actually uses — built for outbound, ABM, paid social and event marketing in equal measure. If our quality targets are missed, we re-deliver or credit, no fine print.
Ready to scope a Custom List Building engagement? Talk to a real operator — you'll get a written scope, a sample of 25–50 verified records, and a confirmed delivery date within one business day.
Built to deliver — or it ships back free.
95%+ deliverability
Every record re-verified at the moment of request.
Multi-source verified
Cross-referenced across 40+ public and proprietary sources.
Compliance baked in
GDPR, CCPA and CAN-SPAM applied automatically.
Delivered in 48 hours
Most lists ship same day. Full ICP builds in 48 business hours.
Built for modern revenue teams
Own a number? This is built for you.
SDR, AE and RevOps teams we work with daily.
10-person teams to Fortune 500 revenue orgs.
White-label delivery available.
How Our Custom List Building Works?
A repeatable, transparent workflow that gets your data production-ready — fast.
- 01
ICP discovery call
A 30-minute working session to define titles, industries, geographies, company size and suppression rules.
- 02
Multi-source compile
We pull from public, permissioned and proprietary sources to build a candidate universe matching your brief.
- 03
Verify & enrich
Every record is tele-verified, email-validated and enriched with the firmographic fields your team needs.
- 04
Deliver in 48 hours
Final list delivered as CSV, XLSX or pushed straight into your CRM or sales engagement tool.
How Can It Benefit Your Business?
Cleaner data isn't the goal — measurable revenue impact is. Here's what changes when this layer is fixed.
Pinpoint ICP targeting
Reach only the accounts and roles you actually sell to — no wasted outreach.
Faster pipeline launch
Skip months of in-house list building. Run campaigns within a week of kickoff.
Higher deliverability
Every record verified at the point of delivery means better inbox placement and answer rates.
Built-in compliance
GDPR, CCPA and CAN-SPAM suppression applied before delivery.
Types of Custom List Building We Provide
Choose a single service or combine them into an end-to-end data program — we tailor scope to your stack and ICP.
Industry-Specific Lists
Healthcare, FinTech, manufacturing, SaaS — any vertical, any niche.
Title & Role-Based Lists
C-suite, VPs, directors, practitioners — by job function and seniority.
Technographic Lists
Filter by installed software, CRMs, ERPs and cloud platforms.
Geo-Targeted Lists
Country, state, city, metro, ZIP — down to street level if needed.
Event Attendee Lists
Reach attendees and exhibitors of specific industry conferences.
Lookalike Lists
Build lists modeled on your best customers' firmographic and tech profile.
What Makes Our Custom List Building Unique?
How Data Is Sourced and Verified?
Every record on this list passes through a four-stage compile-and-verify process before delivery.
- 01
Multi-source compile
Records are aggregated from public business directories, professional networks, permissioned partner feeds and proprietary research signals.
- 02
Email & phone verification
Every email is SMTP-verified and every phone is HLR-validated at the moment of delivery — not at last refresh.
- 03
Tele- & manual verification
A sample of records on every list is human-verified by trained agents to confirm role, employer and contact accuracy.
- 04
Suppression & dedupe
Opt-out, DNC and bounce suppression are applied before delivery, with multi-key dedupe to ensure clean ingestion into your CRM.
Data Privacy Compliance Framework
Every record on this list is filtered through global and region-specific privacy regulations before it ever reaches you.
GDPR & UK GDPR
Lawful-basis framework with documented legitimate-interest balancing tests for EEA and UK business contacts.
CCPA / CPRA
California Consumer Privacy Act compliance with opt-out routing and verifiable consumer request handling.
CAN-SPAM Act
Sender identification, opt-out support and physical address compliance applied to every record.
TCPA & DNC
Phone records scrubbed against the National DNC Registry and applicable state-level DNC lists.
CASL (Canada)
Canadian Anti-Spam Legislation applied to all Canadian contacts before delivery.
Internal controls
Encryption in transit (TLS 1.2+) and at rest (AES-256), least-privilege access, signed DPAs and SOC 2-aligned controls.
Data Sources
We never rely on a single source. This list is compiled and cross-validated from the channels actually trusted in this category.
Who Can Use Our Custom List Building?
What every Custom List Building delivers
Every order ships with the same operating standard — built to drop into your stack, run a quarter cleanly and stand up to scrutiny from procurement, legal and finance.
Multi-source verification
Each record is cross-validated against partner directories, public filings, professional networks and our proprietary B2B graph. Email validity, phone reachability and role accuracy are checked at the moment of delivery, not at last refresh.
CRM-ready format
Lists ship as a clean CSV plus optional direct sync into Salesforce, HubSpot, Outreach, Salesloft, Pipedrive and Apollo. Field mapping is preserved so your sequences trigger without manual cleanup or re-mapping.
Compliance posture, documented
GDPR, UK GDPR, CCPA/CPRA, CAN-SPAM, CASL, TCPA and DNC checks are applied before delivery. We sign DPAs on request and provide written compliance documentation suitable for procurement and legal review.
Replacement guarantee
Any record that hard-bounces, is unreachable or has a verified role mismatch is replaced free of charge for 90 days. The guarantee is unconditional — no support tickets, no proof required beyond the bounce log.
Continuous refresh
B2B contacts decay roughly 30% per year. We re-verify every record continuously against role-change signals, employer changes and tech-stack movement, so a list licensed in Q1 still routes pipeline cleanly in Q4.
Named operator support
Every engagement is owned by one named operator from brief to closed-won. No SDR routing, no ticket queue, no handoff — just a real person who has carried a quota and replies within one business day.
What ships with every Custom List Building record
Every record we deliver includes the same 12 verified fields below — re-validated at the moment of delivery, not at last refresh. Custom field append is available on request.
From ICP brief to live campaign in 7 business days.
Every engagement runs on the same four-step cadence — scoped on day one, delivered by day seven, measured to closed-won every week after that.
- 01
Day 1 · Brief & scope
30-minute ICP call with a real operator (not an SDR). We lock titles, geographies, tech-stack filters, exclusion rules and suppression lists. You leave the call with a written scope and a confirmed delivery date.
- 02
Day 2–4 · Build & verify
Multi-source compile against our 180M+ B2B graph, then tele-verification on a statistically valid sample, SMTP validation on every email and phone-line testing on every direct dial. Suppression and dedupe run last.
- 03
Day 5–7 · Load & launch
Delivered as a clean CSV plus optional direct push into Salesforce, HubSpot, Outreach or Salesloft. Field mapping preserved. Sequences kick off the same day we deliver — no manual cleanup needed.
- 04
Ongoing · Measure to revenue
Weekly revenue review with one named operator. Bounces and role mismatches are replaced free of charge for 90 days. Performance is reported against pipeline and closed-won, not opens or clicks.
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Learn moreCommon questions about Custom List Building Services.
Can’t find yours? Email the team — we usually reply within the hour.
How accurate is your Custom List Building Services data and how often is it verified?
Every record in the Custom List Building Services dataset is re-verified at the moment of delivery — not at last refresh. We achieve 92%+ deliverability through multi-source compile, SMTP validation on every email, phone-line testing on direct dials and continuous refresh against role-change signals. If any record bounces or is unreachable within 90 days, it's replaced free of charge.
What fields are included in the Custom List Building Services campaign?
Each record ships with 12 verified fields by default: first name, last name, job title, company, verified business email, direct dial phone, business mailing address, LinkedIn profile, seniority band, function, NAICS / SIC industry code and employee count. Custom field append (intent signals, technographic install data, financials) is available on request — tell us what you need and we'll scope it.
Is your Custom List Building Services data GDPR, CCPA and CAN-SPAM compliant?
Yes. The Custom List Building Services campaign is filtered through region-specific consent rules and suppression lists before delivery — GDPR / UK GDPR, CCPA / CPRA, CAN-SPAM, CASL, TCPA and DNC. We sign DPAs on request and provide written compliance documentation suitable for procurement and legal review.
How quickly can I receive the Custom List Building Services campaign?
Standard delivery for the Custom List Building Services campaign is 10 business days from signed scope. Pre-built segments can ship same-day. Full custom ICP builds typically deliver inside 48 business hours once the brief is locked. Every engagement starts with a 30-minute scoping call so timelines and filters are agreed in writing before we build.
Which CRM and marketing platforms does the Custom List Building Services campaign integrate with?
The Custom List Building Services campaign ships as a clean CSV plus optional direct sync into Salesforce, HubSpot, Outreach, Salesloft, Pipedrive, Apollo, Marketo and Pardot. Field mapping is preserved so your sequences and routing rules trigger automatically — no manual cleanup or re-mapping. SFTP and API delivery are available for enterprise procurement.
What's your replacement guarantee on the Custom List Building Services campaign?
If more than 10% of the Custom List Building Services campaign hard-bounces, is unreachable or has a verified role mismatch within 90 days, the entire affected portion is replaced free of charge — no support tickets, no proof required beyond the bounce log. Quality issues escalate directly to the named operator who owns your engagement.
Let's build a pipeline you can actually close.
Tell us your ICP, your goals, and one painful bottleneck. We'll come back with a concrete 30-day plan — no pitch deck, no pressure.