Lead411 vs Lusha (2026)
The decision is which review you have to pass. Lusha carries the broadest certification set in this index: an audited service organisation control report alongside international standards for information security, cloud security, cloud privacy, privacy information management, privacy by design and artificial intelligence management, plus broker registration in California, annual independent privacy audits and a published processing addendum with standard contractual clauses. Almost none of that concerns whether an address works. Lead411 has invested in the opposite half and publishes the most detailed verification account of any data provider here: a protocol level check against the receiving server, human verification and open validation, named individually, with a re verification cadence of every three to six months and direct dial numbers double checked against the employers a person has actually worked for. It publishes no certification, trust centre, audit report or penetration test anywhere. One vendor will clear your security questionnaire. The other will tell you what runs before an address is marked verified.
- You want the enrichment interface as well as the connectors. An interface is offered for embedding the data into your own platform or application, alongside an enhancer that keeps your existing records current automatically rather than only pushing new ones in, which is the harder direction of sync and the more useful one.
- Growth beyond the plan has to be priceable. Per unit overage rates are published and fall as the tier rises, rollover terms for unused exports are stated, commitment terms appear per tier including no commitment on the entry plan, and a seven day trial carries a defined allowance.
- You need trigger alerts rather than a static list. Growth signals cover funding, hiring surges, executive changes and expansion, with buyer intent supplied through a named third party partnership on the upper annual tiers, alongside firmographic, technographic and hiring filters.
- The programmatic surface should not be an enterprise upgrade. A public interface and webhooks are available from the second paid tier rather than reserved for enterprise, alongside named connectors into both major systems of record and a browser extension that is the product's most used entry point.
- You want a vendor that publishes where it trails its rivals. Lusha publishes competitive comparisons positioning itself explicitly against the three largest providers in its category, including where it comes off worse, which is a disclosure against its own interest.
- Governance should be attested rather than asserted. The artificial intelligence management standard and a separate responsible artificial intelligence certification are both independent third party audits rather than a paragraph of marketing, and the vendor's own comparison notes that its three largest rivals hold neither.
Plain facts
| Lead411 | Lusha | |
|---|---|---|
| Primary category | Data & Enrichment | Data & Enrichment |
| Founded | 2011 | Not published |
| Headquarters | Not published | Boston, MA |
| Website | www.lead411.com | www.lusha.com |
Side by Side
| Axis | L Lead411 |
L Lusha |
|---|---|---|
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AI Capability
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| AI Centrality | ||
| Autonomy and Oversight Model | ||
| AI Disclosure and Model Transparency | ||
| Operational and Outcome Evidence | ||
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Compliance and Risk
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| Outreach Compliance Posture | ||
| Data Privacy Posture | ||
| Data Licensing and Provenance | ||
| Platform Terms Exposure | ||
| AI Safety and Data Stewardship | ||
| Recipient Disclosure and Authenticity | ||
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Integration and Deployment
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| Ecosystem and Integration Depth | ||
| Deployment Model and Data Residency | ||
| Security Certifications and Trust Center | ||
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Commercial and Operational
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| Commercial Transparency | ||
| Exit and Data Portability | ||
| Deliverability and Sending Discipline | ||
| Segment and Market Coverage | ||
The short version of each
Lead411
Lead411 is a business contact and company database operating since 2011, holding a stated 450 million contacts and 20 to 30 million company profiles, selling verified work emails and direct dial numbers alongside firmographic, technographic and hiring data, with growth signals and buyer intent through a named third party partnership. The GTM Tech Index grades it B on deliverability discipline for the most detailed verification disclosure of any data provider it holds: three distinct email verification methods are named individually, a re verification cadence of every three to six months is published, and direct dial numbers carry a separate double check matching the number against the employers a person has actually worked for.
Source: GTM Tech Index, 2026
Lusha
Lusha is an established business contact and company data provider sold through a browser extension, a filtered web application and a programmatic interface, consumed on a credit model where an email address, a phone number and a recorded call each draw a different amount from one pool. The GTM Tech Index grades it A on security certifications, the broadest certification set in the index: a public trust centre enumerates an audited service organisation control report alongside international standards for information security, cloud security, cloud privacy, privacy information management, privacy by design and artificial intelligence management, with in product controls named individually and evaluation materials packaged for procurement including penetration test summaries and a sub processor list.
Source: GTM Tech Index, 2026
Common questions
Is Lead411 better than Lusha?
Which review you have to pass. Lusha carries the broadest certification set in this index, an audited service organisation control report plus six international standards, broker registration, annual independent privacy audits and a published processing addendum, and almost none of it concerns whether an address works. Lead411 publishes the most detailed verification account of any data provider here and no certification, trust centre, audit report or penetration test anywhere. One will clear your security questionnaire. The other will tell you what runs before an address is marked verified.
How is the data verified at each?
Lead411, in detail nobody else in this index matches. Three distinct methods are named rather than gestured at, a protocol level check against the receiving server, human verification and open validation, with a re verification cadence published as every three to six months and direct dial numbers carrying a separate double check that matches the number against the employers a person has actually worked for. Lusha publishes no verification methodology, no re verification cadence and no measured accuracy figure, and independent reviews consistently report that its accuracy varies by region and contact type.
Which one will clear a security review?
Lusha, comprehensively, and it holds the broadest set in the index. A public trust centre enumerates an audited service organisation control report alongside international standards for information security, cloud security, cloud privacy, privacy information management, privacy by design and artificial intelligence management, with in product controls named individually and penetration test summaries and a sub processor list packaged for procurement. At Lead411 no certification, attestation, trust centre, audit, penetration test or vulnerability disclosure route was located.
How do Lead411 and Lusha price?
Lead411 publishes the more usable structure. Export allowances per tier from the trial upward, per unit overage rates that fall as the tier rises, rollover and commitment terms per tier, and the intent restriction disclosed twice before purchase. Lusha publishes prices its own materials contradict: independent reviews within months of each other report four different free tier credit figures, an entry tier spanning roughly twenty two to seventy dollars a user a month, and three different phone reveal costs, with one review noting the vendor's own pricing page and its supplied directory listing showing different plan names at different price points.
Do the people in these databases have a route?
Both give one and neither notifies proactively at scale. Lead411 publishes a do not sell link in every page footer, a self service deletion form confirmed by a verification code sent to the address being removed, and an appeal channel by name for anyone refused, with no notification when a record is created. Lusha sends personal information notices to European data subjects under the notification article with an explicit right to opt out and runs a self serve privacy centre for non customers, with no equivalent proactive notice documented outside Europe and the United Kingdom.
How does the GTM Tech Index grade Lead411 and Lusha?
Both are graded on the same seventeen capability and compliance axes from public sources, and both sit at full documented depth. The GTM Tech Index grades Lusha A on data privacy posture and security certifications, and B on data licensing, AI safety and stewardship, recipient disclosure, ecosystem depth, residency and segment coverage. Lead411 takes B on data privacy posture, data licensing and provenance, ecosystem and integration depth, commercial transparency and deliverability discipline, where Lusha holds C on the last two. The index publishes no composite score and declares no winner.
Related comparisons
Other published head to head assessments involving these vendors or their closest peers. The full set for this category is on the Sales Engagement & Outreach page.
Each vendor makes a claim about itself that a buyer should verify rather than accept, and the two are different kinds of claim. Lusha's concerns its own regulatory status: the vendor characterises a French regulator's position as holding that it is not itself subject to the European regulation as a controller and that it complies voluntarily.
That is a vendor describing a favourable reading of its own standing, and it sits underneath an otherwise exceptional privacy record, which makes it easy to read past. A procurement team relying on it should confirm the underlying position rather than the characterisation of it.
Lead411's claim concerns its product: the database is described as the only one with triple verified emails and as holding an unmatched verification schedule, and neither claim is accompanied by a sample, a test method, a measured accuracy rate or a third party audit. A figure in the mid nineties for email accuracy circulates in third party reviews and does not appear with a methodology on the vendor's own pages.
The verification method itself is published in real detail and is the strongest thing on that record; the superlatives attached to it are not evidenced. One commercial mechanic at Lusha belongs in any comparison because it decides the real bill and is easy to miss.
A phone number costs several times an email address from the same credit pool, so a phone first motion drains an allocation many times faster, and the conversation intelligence product draws from that same pool per recorded call, so call recording competes directly with contact reveals. Full two way synchronisation with the major systems of record is separately gated to the custom priced tier, which means the buyers with the most accumulated data have the least native way to move it.