Top 7 Coresignal Alternatives for Scalable B2B Data

Teams building AI agents, sales automation, or recruiting platforms hit a common problem: the data feeding their systems updates too slowly to catch high-intent moments. Waiting 30 days for a database to refresh when prospects get promoted, or teams start hiring, means competitors have already closed conversations.

Coresignal offers workforce and firmographic data through bulk datasets and APIs, but teams often look for alternatives when they need faster delivery or event-driven architectures. 

This breakdown covers seven Coresignal alternatives for scalable B2B data.

Why Look for Coresignal Alternatives

Coresignal delivers solid workforce intelligence through public web data, but engineering and GTM teams run into friction when their workflows need different architectures or data types. Here are the reasons teams are looking for Coresignal alternatives:

• Monthly updates miss timing windows - Standard datasets refresh every 30 days. When your outreach triggers on funding announcements or executive moves, that lag means prospects already heard from competitors. Calling a newly promoted VP in week one beats reaching out in week five.

• Direct contact data requires workarounds - Public web scraping captures job titles and company hierarchies, but verified phone numbers and work emails aren't in the standard offering. Sales teams end up layering on enrichment tools anyway.

• APIs favor batch over real-time - The system works for scheduled pulls, but automation platforms built on event-driven architectures need webhooks that push updates when changes happen. Polling every hour creates delays, adds extra load and increases cost.

• Raw data needs cleanup - Scraped records often contain duplicates, HTML artifacts, and inconsistent formatting. Engineering teams spend time cleaning before they can build features, slowing down products where data quality impacts user experience.

Top 7 Coresignal Alternatives to Try in 2026 for Scalable B2B Data

When comparing Coresignal alternatives, pricing models and architectural approaches vary significantly. Here's how the seven Coresignal alternatives stack up before we go into details:

1. Crustdata

Crustdata fits teams building AI agents, sales automation, or recruiting platforms where timing determines whether you reach prospects before competitors do. The infrastructure targets engineers and product builders who need event-driven signals rather than periodic database dumps.

Key Features

• Live data crawling and event monitoring: Indexes web data at the moment of request and pushes webhook notifications when specific triggers occur, such as executive movements, capital raises, or technology adoption changes

• Multi-source company and contact intelligence: Aggregates over 250 data points per company and 90 data points per person from 10+ sources, covering technology infrastructure, funding history, growth stage, and workforce metrics

• API-first architecture for automation: Structured data delivery through REST endpoints and webhooks designed for AI agents, sales automation platforms, and programmatic workflows

• On-demand contact enrichment:  Fills missing email addresses in real time by crawling live sources rather than querying pre-compiled databases

• CRM and platform integrations: Direct connections to Salesforce, HubSpot, and other systems for automated list building and prospect scoring

• Web search API: Converts unstructured web content into structured data for AI agents to research founder backgrounds, evaluate candidate experience, or track product launches and company changes

Pros

• Crawls the web in real time when requests come in

• Offers webhook-based event streaming alongside standard API access, eliminating the need to poll for updates

• Aggregates non-traditional signals via SERP API beyond standard B2B data sources

Cons

• Requires filtering setup to reduce signal noise

• Lacks phone verification and salary projection datasets

Pricing

Crustdata offers custom pricing based on usage-based credits. Free trial available for testing.

2. ZoomInfo

ZoomInfo serves enterprise sales and marketing teams with budgets for comprehensive, all-in-one GTM platforms. The system targets organizations prioritizing database scale and native CRM integrations over API flexibility or real-time data delivery.

Key Features

• Contact and company database: Offers 260 million professional contacts across 100 million companies with firmographic details like industry, headcount, and geography plus technology usage data

• Verified contact information: Provides direct dial numbers, mobile phones, and email addresses for decision-makers across organizational hierarchies

• Buying intent signals: Monitors research activity across thousands of B2B websites to identify companies actively evaluating products

• CRM platform integrations: Syncs contact data and triggers workflows in Salesforce, HubSpot, Marketo, and sales engagement tools

• Record enrichment: Fills missing fields and updates outdated information in existing CRM databases

• API endpoints: Provides programmatic access for enriching records across business systems

Pros

• Covers extensive North American enterprise and mid-market accounts

• Integrates deeply with established CRM and MAP ecosystems

• Bundles data with engagement tools in single platform

Cons

• Contains frequently outdated contact information (users report people who left jobs years ago)

• Enforces strict annual contracts with aggressive auto-renewal clauses requiring 60-day notice

• Delivers inconsistent data quality outside US markets and for smaller companies

Pricing

Custom pricing only. ZoomInfo does not publish pricing on their website and requires contacting sales for quotes.

3. Clearbit

Clearbit targets marketing and product teams, enriching inbound leads at the point of capture. The platform works best for companies already using HubSpot or needing real-time domain-to-company mapping for form fills and signups.

Key Features

• Instant enrichment: Appends firmographic and contact data to CRM records at the point of capture when leads submit forms or sign up

• Website visitor identification (Reveal): Matches IP addresses to company profiles to surface anonymous web traffic

• Form shortening: Reduces form fields by pre-populating known information in the background to improve conversion rates

• Multi-source data aggregation: Pulls from 250+ sources to build profiles with employee count, revenue, technology stack, and industry classification

• Audience targeting for ads: Syncs enriched segments to Facebook and Google advertising platforms for account-based campaigns

• Native HubSpot integration: Operates as Breeze Intelligence inside the HubSpot ecosystem since the 2023 acquisition

Pros

• Enriches leads instantly at the point of capture without manual lookups

• Delivers fast API response times for embedded workflows

• Integrates natively with major CRMs and marketing automation platforms

Cons

• Provides limited employee-level granularity compared to workforce-focused vendors

• Requires a HubSpot subscription since the acquisition, limiting standalone access

Pricing

Clearbit now operates through HubSpot as Breeze Intelligence. Custom pricing only through HubSpot subscriptions and credit system.

4. Apollo.io

Apollo.io targets SMB sales teams looking for an affordable, all-in-one prospecting and engagement platform. The system combines contact database access with built-in email sequencing and dialer functionality, designed for teams that prioritize ease of use over API depth.

Key Features

• Contact and company database: 210 million+ contacts across 30 million+ companies with search filters for job title, location, revenue, and technology stack

• Sales engagement suite: Email sequences, automated follow-ups, call dialer, and meeting scheduler integrated into a single platform

• Chrome extension: Extracts contact data directly from company websites without tab switching

• Native CRM integrations: Syncs with Salesforce, HubSpot, and major sales engagement platforms

• Data Enrichment: Appends missing contact info (emails, direct dials) to existing lead lists

Pros

• Combines prospecting data with engagement tools in a unified interface

• Provides a Chrome extension for prospecting

• Includes built-in sequencer and dialer without separate tools

Cons

• Delivers inconsistent data quality with frequent accuracy complaints from users

• Restricts API rate limits for automated workflows compared to API-first providers

• Consumes credits for viewing contact information, not just exporting

Pricing

Apollo.io offers a free tier with 50 email credits per month. Paid plans start at $49 per user monthly (annual billing) for Basic with 200 credits, $79 for Professional with enhanced features, and $119 for the Organization tier with AI capabilities and the highest credit volume.

5. Lusha

Lusha serves individual contributors and small sales teams that need quick contact lookups. The platform prioritizes point-and-click simplicity over technical depth, designed for reps who want instant access to emails and phone numbers without complex workflows.

Key Features

• Contact database access: Direct dials, mobile numbers and business emails for decision-makers across industries

• ICP targeting filters: Firmographic and demographic data to identify companies matching specific revenue, size, and industry criteria

• CSV and CRM enrichment: Bulk upload capabilities to append missing contact details to existing lead lists

• Bombora intent signals: Tracks companies actively researching topics related to products or services.

• Browser-based prospecting: Chrome extension reveals contact information while navigating company websites

Pros

• Automates personalized outreach directly from the platform

• Offers low entry cost with a free tier and affordable paid plans

• Delivers a straightforward interface requiring minimal training

Cons

• Limits high-volume prospecting through a restrictive credit consumption model

• Provides shallow company intelligence beyond basic contact data

• Lacks API functionality for automated enrichment workflows

Pricing

Free tier with 70 credits monthly. Pro plan starts at $22.45 per user monthly (annual billing). Premium tier at $52.45 monthly (annual billing). Scale plan with custom pricing for enterprise teams requiring API access and unlimited credits.

6. Cognism

Cognism targets EMEA-focused sales teams running phone-heavy outbound where mobile accuracy directly impacts conversion rates. The platform centers on Diamond Data, its phone-verified mobile number database, which claims 87% connection rates compared to industry averages of around 30%.

Key Features

• Diamond Data phone verification: Phone-verified mobile numbers for EMEA markets with documented high connect rates

• GDPR and CCPA compliance: Data checked against 13 global Do Not Call lists with built-in compliance tooling

• Chrome extension: Pulls verified contact details from company websites

• Real-time CRM enrichment: Instant, scheduled, and on-demand CSV enrichment to update outdated contact records

• AI and Automation: AI Search for quick data retrieval and automation for outreach.

Pros

• Supports TAM/ICP development and campaign planning

• Provides strong EMEA coverage with GDPR-compliant data collection

• Operates on license-based pricing without credit consumption limits

Cons

• Lacks built-in outreach automation, requiring separate tools for campaigns

• Requires annual contracts without monthly options

• Covers limited markets outside EMEA regions

Pricing

No published pricing. Cognism operates on annual license contracts with two tiers: Platinum (core features) and Diamond (adds phone-verified mobile data and intent signals), with costs determined by team size and negotiated directly through sales.

7. People Data Labs

People Data Labs serves engineers and data teams building custom data pipelines for large-scale enrichment projects. The platform targets technical users who are comfortable working directly with REST APIs rather than browser extensions or pre-built UIs.

Key Features

• Person and company APIs: Access to 3 billion person profiles and company records through REST endpoints, including work history, education, skills, and contact details across 140+ data fields

• Search and enrichment endpoints: Query capabilities for finding specific profiles or companies, plus enrichment tools that append missing data to existing records

• Identity verification APIs: Match records across systems and verify user identities to reduce fraud risks

• Bulk processing capabilities: Handle up to 100 records per API call through bulk enrichment endpoints for high-volume operations

• Granular field control: Request specific data fields per call to control cost and optimize response payloads

Pros

• Provides transparent per-call pricing 

• Offers comprehensive historical work data with specific role start and end dates

• Maintains high API uptime with documented rate limits and clear error handling

Cons

• Lacks email/phone data in some areas and is limited by social media presence

• Requires technical integration with no UI for non-developer users

• Limits webhooks to the enterprise tier with monthly batch delivery, not real-time event streaming

Pricing

People Data Labs has a free tier with 100 person/company lookups monthly. Pro plan starts at $98 monthly for 350 person enrichment credits and 1,000 company lookups. Enterprise pricing is custom-quoted.

How to Choose the Right Coresignal Alternative

Your choice depends on whether you're running batch enrichment for historical analysis or building systems that react to signals as they happen.

• Evaluate workflow architecture: Batch enrichment for CRM cleanup operates differently from event-driven systems that trigger on job changes within hours. Monthly refresh cycles break automation models regardless of database size.

• Match pricing to usage pattern: Seat-based models work when humans click through prospects, while usage-based pricing scales better for AI agents making thousands of API calls without consuming expensive per-user licenses.

• Assess data freshness requirements: Reaching a newly promoted VP within 48 hours produces different results than contacting them 60 days later. Ask providers to define refresh cycles in days, not vague terms like "regularly updated."

• Consider the use case: Sales reps need browser extensions and simple interfaces, while engineers building products require robust APIs with webhook support and clear documentation for programmatic access.

• Test integration capabilities: Native CRM sync matters for manual workflows, but webhook architecture and rate limits determine whether automation runs smoothly at the scale your systems require.

Why Crustdata Stands Out as the Best Coresignal Alternative

Coresignal alternatives solve different problems. Apollo.io gives small businesses an affordable starting point. People Data Labs serves engineers who need REST endpoints for batch processing.

But when your system needs to react to executive departures or funding announcements within hours, batch processing creates a structural mismatch. Your AI SDRs reach newly promoted VPs while they're setting up teams rather than contacting them 60 days later when competitors have already closed conversations.

Signal diversity matters when you need to understand what's actually happening inside companies beyond contact details. Crustdata aggregates from 10+ sources, including app store reviews and web traffic patterns that traditional providers skip. This depth supports account-based intelligence strategies that rely on multiple trigger points rather than single data fields.

Ready to give it a try?

Book a demo to see how live data delivery impacts your specific workflows.