Best Free Sales Intelligence Tools in 2026

Find leads, enrich contacts, automate outreach, and track engagement

4.1/5 across Trustpilot, G2 and Capterra · 11,273 ratings, Sep 2026

Apollo.io is a sales intelligence and engagement platform with a database of 275M+ contacts. Find leads, enrich data, automate outreach sequences, and track engagement-all in one platform with AI-powered insights and CRM integrations.

AI-powered sales software to find leads, book appointments, and close more sales.

4.4/5 across G2 and Capterra · 5,976 ratings, Sep 2026

Seamless.AI is an AI-powered sales platform designed to help sales professionals, marketers, and recruiters find, connect with, and close more deals. It provides a real-time search engine for B2B sales leads, offering access to over 1.8 billion verified business emails and 414 million phone numbers globally. The platform allows users to build targeted lists of contacts and companies, enrich existing data, and track job changes to maintain up-to-date information. The product suite includes features like Prospector for discovering ideal contacts with detailed profiles, Buyer Intent to identify ready-to-buy leads, Data Enrichment to automatically update CRM records, and an AI Assistant for generating sales copy. Seamless.AI integrates with popular CRMs and sales tools like Salesforce, HubSpot, Salesloft, and Outreach, streamlining workflows and improving sales productivity. It aims to eliminate manual prospecting and data decay, enabling users to focus on engaging with prospects and closing sales.

Navigate the B2B data jungle to precisely target and connect with decision-makers.

4.6/5 across SourceForge and G2 · 2,800 ratings, Sep 2026

Adapt.io is a B2B lead intelligence platform designed to redefine prospecting by providing accurate and verified contact and company data. It helps sales and marketing teams identify high-growth companies, discover key decision-makers, and build targeted lists with precision. The platform offers extensive data attributes, including firmographic, demographic, and technographic information, enabling users to personalize outreach and improve conversion rates. Primarily, Adapt.io serves sales representatives, account executives, and sales leadership by streamlining prospecting, enriching CRM data, and providing one-click integrations with outreach tools. For marketers, it empowers demand generation strategies, improves email campaign effectiveness, and facilitates hyper-targeted audience segmentation. The platform's core value lies in its ability to deliver high-quality, real-time verified data, ensuring sales and marketing efforts reach the right people with confidence. Adapt.io aims to help businesses scale their sales and marketing engines by providing a robust data foundation. It enables users to build pipelines that convert, increase email success rates, and boost overall prospecting productivity, ultimately leading to increased revenue.

The #1 B2B leads database with sales intelligence for accelerated lead generation.

4.6/5 across G2 and Capterra · 559 ratings, Sep 2026

Lead411 is an all-in-one B2B lead intelligence platform designed to help sales teams, marketers, and business development professionals identify, connect with, and close more deals faster. It provides access to millions of verified B2B contacts, including direct dials and email addresses, alongside powerful sales intelligence features. The platform offers real-time growth intent data, sales intelligence alerts for key company events like hiring and funding, and advanced search filters to pinpoint hyper-targeted prospects. Lead411 aims to streamline prospecting, enhance CRM data, and automate outreach efforts through seamless integrations, ultimately accelerating revenue growth and shortening sales cycles.

Accelerate revenue growth by identifying, prioritizing, and engaging high-quality sales leads.

4.3/5 on G2 · 859 ratings, Sep 2026

Dealfront is a comprehensive platform designed to help sales and marketing teams identify, prioritize, and activate high-quality leads to drive predictable revenue growth. It provides access to a global database of companies and contacts, combined with advanced AI and intent signals, to ensure teams focus their efforts on accounts most likely to convert. The platform enables users to find ideal customers quickly using over 100 filters, monitor real-time buying signals, and receive alerts when target accounts engage with key content. Dealfront integrates AI to streamline lead qualification, provide instant company insights, and identify key decision-makers, significantly reducing research time. It's built for sales and marketing professionals seeking to optimize their pipeline, improve conversion rates, and achieve their revenue goals through data-driven insights and automated workflows.

Instantly access accurate B2B contact data directly from LinkedIn profiles.

4.2/5 across G2 and Capterra · 840 ratings, Sep 2026

Kaspr provides instant access to verified B2B contact data, including phone numbers and email addresses, for over 500 million profiles. It operates primarily through a LinkedIn Chrome Extension, allowing users to extract contact information directly from prospect profiles with a single click. This tool is designed to help sales teams, recruiters, and founders streamline their prospecting efforts, increase outreach efficiency, and ultimately grow their pipeline and close more deals. Beyond data extraction, Kaspr offers an all-in-one prospecting dashboard to manage leads, set up automations, and maintain organization. The data is real-time verified from over 150 sources, ensuring accuracy and compliance, particularly with GDPR. Kaspr aims to reduce the time spent on manual data gathering, enabling users to focus more on building relationships and engaging with prospects.

Automate sales research and prep directly in Slack

3.9/5 on Trustpilot · 1,325 ratings, Sep 2026

Tadata is an AI employee that lives inside Slack and automates the research, preparation, and follow-up surrounding sales and go-to-market work. It connects to your existing tools, CRM, calendar, email, and more, and proactively delivers morning briefs, meeting prep, personalized outreach drafts, and CRM updates. Tadata learns your preferences and offers to automate repetitive tasks, but nothing is ever sent or changed without your approval. The platform comes with pre-built agents for common workflows like outreach personalization, warm intro finding, call preparation, LinkedIn monitoring, new hire detection, and conference prep. It is model-agnostic and lets you export your processes and memory, so you are never locked into a single AI provider. Tadata enriches prospect and company data from external sources like LinkedIn, company sites, and social platforms, and surfaces actionable insights directly in Slack.

A flexible CRM that adapts to your business

4.3/5 on G2 · 592 ratings, Sep 2026

Attio is a flexible CRM that adapts to how your business actually works. Customizable data model goes beyond standard CRM fields. Real-time collaboration with multiplayer editing. Automatic enrichment and activity sync. Beautiful interface that teams enjoy using. The CRM for companies who've outgrown simple tools but don't want enterprise complexity.

Find, verify, and export B2B emails and leads from professional networks and websites.

4.5/5 across G2 and Capterra · 412 ratings, Sep 2026

Skrapp is a comprehensive lead generation and enrichment tool designed to help businesses, sales teams, recruiters, and founders build targeted B2B lead lists. It provides capabilities to find professional email addresses, verify their deliverability, and enrich lead data with additional intelligence. The platform integrates seamlessly with LinkedIn and Sales Navigator through a Chrome extension, allowing users to extract verified business emails directly from profiles and search results. Skrapp also offers an Email Finder to locate contacts by name, domain, or company, and a Lead Search feature that provides access to a database of over 200 million professionals and 20 million companies. Its AI-powered Email Verifier ensures high accuracy, reducing bounce rates and providing insights into email status and role. Skrapp is ideal for anyone looking to scale their outreach, improve lead quality, and personalize communication with verified contact information.

Identify companies visiting your website and convert them into high-value B2B leads.

3.9/5 across Trustpilot, G2 and Capterra · 1,011 ratings, Sep 2026

Leadfeeder is a B2B lead generation software that identifies the companies visiting your website, turning anonymous traffic into real company names. It helps sales and marketing teams uncover hidden leads by revealing the exact behavior of website visitors, even if employees work remotely. Users can qualify high-potential leads using custom segmentation and over 50 behavioral and firmographic filters, automatically scoring visitors based on their web activity. The platform also assists in connecting with decision-makers by providing a robust global database to search for contacts based on job role, seniority, or location, and allows exporting of email addresses, phone numbers, and LinkedIn profiles. Leadfeeder integrates with major CRM and marketing automation tools like Pipedrive, HubSpot, Salesforce, Slack, Google Ads, and Microsoft Dynamics, enabling automatic syncing of visit data and creation of powerful reports. It aims to help businesses find ready-to-buy sales leads, beat competitors to sales, build better sales pitches, measure campaign effectiveness, and optimize marketing content.

Identify website visitors and turn anonymous traffic into qualified leads for your sales pipeline.

4.5/5 on G2 · 284 ratings, Oct 2026

RB2B is a website visitor identification tool that helps businesses uncover the identities of people and companies visiting their websites. By installing a simple pixel, users can identify 70-80% of their web traffic, receiving names, LinkedIn profiles, and email addresses of real people. This information is then pushed to various integrations like Slack, Teams, and CRMs, enabling sales and marketing teams to act on high-intent signals. The platform allows users to filter and route "Hot Leads" based on criteria such as company revenue, size, seniority, department, category, and geography. This enables targeted outreach and personalized engagement. RB2B is designed for sales, marketing, and growth teams looking to optimize their website traffic, build reliable pipeline, and improve conversion rates by connecting with prospects at the right time.

B2B sales intelligence platform with verified contact data and AI insights

3.2/5 across Trustpilot, G2 and Capterra · 2,809 ratings, Sep 2026

Lusha is a B2B sales intelligence platform trusted by millions of users, providing accurate contact and company data to accelerate revenue generation. The platform offers hundreds of millions of verified business contacts with emails, direct phone numbers, and company context. Key features include a Chrome extension for capturing leads from LinkedIn, real-time buying signals (job changes, funding, hiring), CRM auto-enrichment, AI-powered lead recommendations, and automated prospecting workflows. Lusha also provides email automation, call recording with AI analysis, and API access. The platform ensures compliance with data privacy standards. Users report significant increases in outbound leads and deals.

Intelligent CRM for growing businesses

4.4/5 across Trustpilot, G2 and Capterra · 316 ratings, Sep 2026

Teamgate is a sales-focused CRM designed for SaaS and SMB companies that prioritizes ease of use and fast implementation. It offers pipeline management, lead scoring, SmartDialer for in-CRM calling, email integration, and sales forecasting. Winner of Capterra's 2024 #1 Value-for-Money CRM, Teamgate helps teams achieve up to 132% conversion rate improvements with a free starter plan for up to 2 users.

Identify anonymous website visitors, uncover decision-makers, and generate B2B leads.

4.5/5 across G2 and Capterra · 260 ratings, Sep 2026

Leadinfo is a B2B lead generation software that identifies the companies visiting your website, even if they don't fill out a form. It transforms anonymous website traffic into actionable sales leads by revealing company names, contact details of key decision-makers, and insights into their browsing behavior. This allows sales teams to proactively reach out to interested prospects at the right time. The platform is designed for sales and marketing professionals in B2B companies looking to grow their sales funnel, improve lead quality, and optimize their outreach efforts. By integrating with over 70 popular CRM, communication, and marketing tools, Leadinfo streamlines workflows and enables multi-channel outreach campaigns. It leverages AI to filter out irrelevant traffic and provides data from an extensive international database of companies across 195 countries.

Supercharge sales & marketing with enriched lead data

4.6/5 on G2 · 228 ratings, Aug 2026

Clay is a data enrichment platform that supercharges outbound sales and marketing. Pull data from 75+ sources to build comprehensive lead profiles. Automate research that would take hours manually. AI scoring helps prioritize the best prospects. Build personalized outreach campaigns at scale. Integrates with CRM and sales tools. The creative canvas for growth teams who want to go beyond basic prospecting.