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Data sourcing/Verification/Accuracy
Every record starts from compliant, permission-based sources and moves through seven verification checks — from format and SMTP deliverability checks to cross-source corroboration and human review — before it reaches your team. Records are then re-verified on an ongoing basis to limit data decay.
Live verification cycle
Sources → Lake → Delivery
Opt-in partners
Compliant intake
Company records
Firmographics
Role & title
Job-role data
Email & phone
Contact points
Verification log
01Source validation✓
02Syntax & format✓
03Dedup & entity resolution✓
04Cross-source corroboration✓
05Live deliverability✓
06Human review✓
07Compliance & opt-out✓
Verified recordDelivery-ready
Data accuracy95%
01 — Methodology overview
The short answer
CampaignLake’s data methodology is a seven-check process for sourcing and verifying B2B contact data. Data is ingested only from compliant, permission-based channels, then every record passes syntax and format checks, master-database matching, cross-source corroboration, SMTP deliverability testing, human review with tele-verification, and a compliance audit. A record that fails a check is sent back for repair and re-checked before delivery.
Methodology fact sheet
8 answers · CampaignLake standards
| 01Where does CampaignLake data come from? | From compliant, permission-based sources: opt-in channels, public business sources, directories and industry media, trade shows and events, and trusted B2B data partners. |
|---|---|
| 02How is the data verified? | Through seven sequential checks that combine automated validation — format, master-database matching, cross-source corroboration and SMTP deliverability — with human review. |
| 03Is a person involved in verification? | Yes. Analysts review records and flag any that need manual repair, and tele-verification confirms details by phone. |
| 04Which regulations is the data screened against? | GDPR, CCPA, CASL and CAN-SPAM, through a dedicated compliance audit. Opt-out mailers are also sent to final compiled records. |
| 05How accurate is CampaignLake data? | CampaignLake benchmarks 95% data accuracy, backed by an accuracy SLA that is credited if missed. |
| 06How is the data kept current? | Every published record is re-validated at least once every 45 days, with job changes monitored continuously between cycles. |
| 07What coverage is available? | Verified B2B contact and company data across 180+ countries. |
| 08Can I test the data before buying? | Yes. Request a free sample before you buy. Lists are typically delivered within 48 hours. |
Want proof on your own segment?
02 — Data sourcing & intake
CampaignLake builds B2B contact data from five classes of source — opt-in and permission channels, public business sources, directories and industry media, trade shows and events, and trusted B2B data partners. Records are gathered manually across online and offline channels, so each class adds a different layer of coverage.
Source class 01
The foundation of CampaignLake data: individuals who voluntarily agreed to receive communications, reached through permission-based channels.
Opt-in formsOpt-in business networksE-book subscriptionsOnline & offline subscriptions
What it contributesPermission-based contact details from people who chose to share them.
Source class 02
Publicly available business information from official and professional sources.
Company websitesGovernment registriesLicensing databasesProfessional & legal directories
What it contributesBusiness details used to build and confirm company and professional information.
Source class 03
Published listings and industry coverage that widen reach across sectors.
Business directoriesIndustry directoriesNews agenciesWeb journals
What it contributesCompany and industry listings that broaden coverage across sectors.
Source class 04
Offline sources gathered where professionals meet in person.
Trade showsTrade eventsOffline subscriptions
What it contributesOffline business contacts that complement online sources.
Source class 05
Established partners and professional platforms that extend coverage.
Trusted B2B data partnersProfessional platforms
What it contributesAdditional reach across industries and regions.
Next: what happens to a record once it enters CampaignLake. Follow the data journey ↓
03 — The data journey
A record doesn’t stay in the form it arrived in. Raw, fragmented signals are structured into consistent fields, enriched where information is missing, validated and verified, then kept current — so what reaches your team is a clean, ready-to-use B2B record.
B2B record · illustrativeAwaiting signalsStructuringEnrichingValidatingVerifyingRefreshingReady
Contactjane DOEJane Doe✓
Job titleVP slsVP, Sales✓
Companyacme corpAcme Corp✓
Emailj.doe@examplej.doe@example.com✓
Phone555.0100+1 (555) 555-0100✓
IndustrySoftware · SIC 7372✓
Company size51–200 employees✓
FreshnessRe-verified on an ongoing basis
Want the step-by-step intake detail? Read CampaignLake’s opt-in process →
04 — Verification engine
Every record is challenged by seven quality checks before it’s marked ready for delivery. A record that fails a check is sent back for manual repair, and validation, verification and cleansing repeat until accuracy is confirmed.
01Checks: source
Incoming data is checked against CampaignLake’s sourcing standards, so only data from compliant, permission-based channels is ingested.
02Checks: every field
Each field is validated for correct syntax and format, and statistical checks flag anomalies. Malformed and placeholder values are removed.
03Checks: entity
Records are matched against CampaignLake’s master database, so duplicate versions of the same contact or company resolve into one record.
04Checks: company & role
Contact, company and role details are cross-verified across multiple sources, including professional social platforms, with a manual check.
Record under reviewChecks passed 01234567/7
Illustrative
01Sourcecompliant, permission-based channelPendingChecking✓ Passed
02Formatsyntax & anomaly checksPendingChecking✓ Passed
03Entitymaster-database matchPendingChecking✓ Passed
04Cross-sourcecompany & role corroboratedPendingChecking✓ Passed
05DeliverySMTP via RightEmailsPendingChecking✓ Passed
06Human reviewanalyst & tele-verificationPendingChecking✓ Passed
07ComplianceGDPR · CCPA · CASL · CAN-SPAMPendingChecking✓ Passed
✓Verified · ready for delivery
05Checks: mailbox
SMTP and deliverability checks run through RightEmails, CampaignLake’s in-house email verification platform, filtering invalid and risky addresses.
06Checks: analyst
Analysts review records, flag any that need manual repair and repeat validation until accuracy is confirmed. Tele-verification confirms details by phone.
07Checks: compliance
A compliance audit screens records against GDPR, CCPA, CASL and CAN-SPAM, and opt-out mailers sent to final records let contacts withdraw.
✓Result
Only records that clear all seven checks are marked verified and ready for your team.
✕ Fails a check→Sent back for manual repair→Validation, verification & cleansing repeat→✓ Moves forward only when it passes
05 — Freshness
CampaignLake re-validates its entire published database at least once every 45 days. Every record is included — not a sample, and not only records customers have downloaded. Between full cycles, the fields most likely to go stale, such as job title, employer and phone status, are watched continuously.
45-day refresh cycleLive monitoring
Job-change & phone-status signalsContinuous
Full revalidation wave · day 1–45Every record
Cycle progressRestarts every 45 days
Record re-validatedWeekly suppression & DNC re-screenContinuous job-change monitoring
06 — Accuracy
CampaignLake publishes a separate accuracy benchmark for each dataset. Each figure is measured across the full published dataset at the end of the latest audit cycle — not a hand-picked sample — and is updated when the next audit closes.
| Dataset | Benchmark | How it is measured |
|---|---|---|
| Contact dataCore contact records | 95% | Multi-stage automated verification plus analyst review at every refresh. Undeliverable, role-based and catch-all addresses are flagged and left out of the benchmark. |
| Direct dialsNamed-person phone lines | 85% | Phone-intelligence checks separate direct lines from switchboards, and analysts tele-verify a subset of records to confirm the number reaches the named person. |
| Email deliverabilityAccepted-delivery rate | 85% | The accepted-delivery rate across anonymised, aggregated customer campaign results. Hard bounces count as failures; filtering caused by content or sender reputation is excluded. |
iDeliverability also depends on your sender reputation and campaign content, which sit outside CampaignLake’s control. The 85% figure reflects delivery without hard bounces under standard sending practices.
07 — Database size
CampaignLake publishes 500M+ verified contacts, 130M+ phone numbers, 100M+ direct dials and 75M+ company profiles. Every figure counts published, verified records only.
Published & verified
Business contacts that have cleared every verification check and are live in the published database.
Business phone numbers across contact and company records.
Lines that reach the named person rather than a switchboard.
Firmographic records for the companies behind every contact.
How these counts work: records that failed verification, retired records and records held back by suppression screening are excluded. Each count is rounded down and updated when a quarterly audit closes — so any of these numbers can go down as well as up.
08 — Compliance
CampaignLake processes business contact data under the frameworks below, and its controls are reviewed against each of them every year.
International standard for information security management systems.
✓ CertifiedGlobal
Code of practice for information security controls. CampaignLake’s security controls are aligned with its guidance.
✓ AlignedGlobal
The EU General Data Protection Regulation.
✓ CompliantEU & EEA
Guidance for establishing, implementing and maintaining an information security management system.
✓ AlignedGlobal
Guidance for monitoring, measuring and evaluating information security performance.
✓ AlignedGlobal
The California Consumer Privacy Act, as amended by the CPRA.
✓ CompliantCalifornia, US
Need certificates, audit reports or data-processing terms for your security review?
09 — FAQ
Straight answers to the questions buyers ask most about where CampaignLake data comes from, how it is verified and how it stays accurate.
Prefer to talk it through? Call a data specialist at +1 (888) 840-3334.
CampaignLake builds its data from five classes of source: opt-in and permission channels, public business sources, directories and industry media, trade shows and events, and trusted B2B data partners. Records are gathered manually across online and offline channels.
Every record passes seven checks in order: source validation, syntax and format checks, deduplication against a master database, cross-source corroboration, SMTP deliverability testing through RightEmails, human review with tele-verification, and compliance screening. A record that fails a check is sent back for repair and re-checked.
The full published database is re-validated at least once every 45 days, covering every record rather than a sample. Job changes are monitored continuously between cycles, and suppression and Do-Not-Call lists are re-screened weekly.
CampaignLake benchmarks 95% accuracy for contact data and 85% for direct dials, measured across the full published dataset at the close of each audit cycle. The 95% benchmark is backed by an accuracy SLA that is credited if missed.
CampaignLake’s benchmark is 85% delivery without hard bounces under standard sending practices, based on anonymised, aggregated customer campaign results. Actual results also depend on your sender reputation and campaign content.
CampaignLake publishes 500M+ verified contacts, 130M+ phone numbers, 100M+ direct dials and 75M+ company profiles across 180+ countries. Only published, verified records are counted, and figures are restated after each quarterly audit.
Yes. CampaignLake processes business contact data in line with GDPR and CCPA, holds ISO 27001:2022 certification, and aligns its security controls with ISO 27002, 27003 and 27004 guidance. Its controls are reviewed against these frameworks every year.
Data comes from compliant, permission-based channels. Opt-in email campaigns run under CAN-SPAM and GDPR policies, opt-out mailers are sent to final compiled records, and tele-verification confirms details before a record is finalised.
They are not published. Records that fail a check are sent back for repair, and records that can’t be confirmed are retired — roughly 3.1% of records per 45-day cycle. Failed and retired records are excluded from published counts.
Yes. You can request a free sample before you buy, and lists are typically delivered within 48 hours.
Try it on your own segment
Request a free sample built to your ICP and check every field yourself before you buy. Samples are typically delivered within 48 hours.