Best Lead Generation Software

Overloop is an AI-powered sales prospecting and cold outreach platform built for B2B sales and marketing teams. Formerly known as Prospect.io, it helps users find decision-makers in a database of over 450 million contacts, verify email addresses, and automatically draft personalized cold emails using AI that reads each prospect's website and social profiles. Campaigns can combine email and LinkedIn outreach in a single sequence, with automatic follow-ups and a unified inbox for replies.

The platform also includes a Chrome extension for pulling leads from LinkedIn and Sales Navigator, email warmup tools to protect deliverability, visual workflow automation, and campaign analytics covering opens, clicks, replies, and bounces. Overloop is sold on per-seat monthly pricing across Starter, Growth, and Enterprise plans, each with a monthly credit allowance, and integrates with Salesforce, HubSpot, Pipedrive, Slack, and Zapier.

Lead411 is a B2B sales intelligence platform that gives sales and marketing teams access to a database of over 450 million verified contacts and more than 30 million company profiles. It provides direct dial phone numbers, verified email addresses, and firmographic data, along with growth intent signals such as hiring trends, executive changes, and funding activity to help users find companies that are actively in a buying cycle.

The platform combines machine learning with human verification to keep contact data accurate, and includes a Chrome extension, an AI search assistant, and Bombora powered intent data on select plans. Lead411 integrates with CRM and sales engagement tools including Salesforce, HubSpot, Pipedrive, and Outreach, and offers an API for custom data enrichment.

UpLead is a B2B sales intelligence platform that helps sales, marketing, and recruiting teams find verified contact data. It provides access to more than 200 million business profiles across 200+ countries, searchable with over 50 filters such as job title, industry, company size, and location. Every email and mobile number is verified in real time, and UpLead backs its data with a 95 percent accuracy guarantee.

The platform also includes data enrichment for existing contact lists, a Chrome extension for capturing leads from LinkedIn and company websites, buyer intent data, and technographic details on company tech stacks. UpLead integrates with CRMs including Salesforce, HubSpot, Zoho, and Pipedrive, and connects to over 1,500 apps through Zapier. Plans are credit based and billed monthly or annually, with a 7 day free trial and no permanent free plan.

Hunter is an email finding and outreach platform used to identify, verify, and contact business email addresses. Founded in 2015 in Paris, France by Antoine Finkelstein and Francois Grante, and now run as a fully remote team, Hunter offers Domain Search to list emails at a company, an Email Finder that returns a likely address for a named person, and an Email Verifier that checks deliverability before sending.

Hunter also includes Email Sequences for sending cold outreach campaigns through a user's own Gmail, Google Workspace, or Outlook account, plus a browser extension and a public API. The product runs on a credit-based system with a permanent free plan and paid Starter, Growth, and Scale plans billed monthly or annually, alongside custom Enterprise pricing.

Cognism is a B2B sales intelligence platform that provides verified business emails and phone-verified mobile numbers, branded Diamond Data, for outbound prospecting. Founded in 2015 and headquartered in London, United Kingdom, Cognism screens its phone data against Do Not Call and TPS registries across markets including the US, UK, Canada, and several European countries. The company acquired the LinkedIn-focused prospecting tool Kaspr in 2022.

Cognism is sold through two sales-led packages, Standard and Pro, each including five seats, with Pro adding phone-verified mobile numbers, Bombora-powered intent data, and on-demand verification. There is no self-serve free plan or trial; prospective customers can request a small data sample or book a demo, and all pricing is quoted individually.

Lusha is a B2B data and sales intelligence platform that helps go-to-market teams find verified contact details and company information for prospecting. Founded in 2016 and headquartered in Tel Aviv, Israel, with a major office in Boston, Lusha reports a database of more than 300 million contacts and 30 million company profiles. Users access data through a web workspace, a browser extension for Chrome, Firefox, and Edge, an API, and CRM integrations.

Lusha uses a credit-based system where revealing an email costs one credit and a phone number costs ten credits. It offers a permanent free plan alongside Starter, Professional, and Premium paid plans billed monthly or annually, with a custom Scale plan for larger teams. The company markets its data as GDPR and CCPA compliant.

LinkedIn Sales Navigator is a prospecting and social selling tool built on LinkedIn's professional network of more than one billion members. It gives sales professionals advanced search filters, AI-generated account and lead summaries called Account IQ and Lead IQ, real-time alerts on job changes and account activity, and InMail credits for messaging people outside their network. The product is sold in Core, Advanced, and Advanced Plus editions.

Core is designed for individual sellers, while Advanced and Advanced Plus add team features such as TeamLink warm introductions, centralized billing, CRM integrations with Salesforce and HubSpot, and buyer intent data. Core and Advanced are self-serve with published monthly and annual pricing, and free trials are available to eligible LinkedIn members.

ZoomInfo is a go-to-market platform that gives sales, marketing, and recruiting teams access to business contact data, company profiles, and buying signals. Founded in 2007 and headquartered in Vancouver, Washington, it reports a database of hundreds of millions of contacts and companies built from public records, a contributory network, and ongoing verification. The platform spans product lines including SalesOS, MarketingOS, TalentOS, and OperationsOS, plus an AI layer called Copilot.

Teams use ZoomInfo to build prospect lists, track intent signals such as hiring changes and executive moves, enrich CRM records, and automate outreach through integrations with Salesforce, HubSpot, Outreach, and Salesloft. Pricing is quote based rather than published, with contracts typically billed annually, though a free ZoomInfo Lite tier offers limited monthly credits for smaller-scale use.

Apollo.io is an AI sales platform that combines a B2B contact database with outreach automation and deal execution tools for revenue teams. Its database covers more than 210 million contacts and 35 million companies, searchable through the web app or a Chrome extension. Sales teams use Apollo to build multichannel outbound sequences across email, calls, and LinkedIn, qualify inbound leads, and manage pipeline and deals, with conversation intelligence that records calls and generates AI summaries.

Founded in 2015 and headquartered in San Francisco, Apollo is used by startups through large enterprises, including Ernst and Young, Oracle, and Lyft. It offers a free Starter plan, paid Basic and Professional plans billed per user, and custom Enterprise pricing; paid tiers include a free trial. Apollo integrates with Salesforce, HubSpot, Outreach, SalesLoft, and Marketo, and provides a public REST API on all plans.

CompanyEnrich is a B2B data provider that supplies fresh, instant company and people data through APIs, built to power lead generation, prospecting, sales operations, and AI agents. It gives teams accurate firmographic and contact information so they can enrich records and target the right accounts.

The company enrichment API accepts a domain, name, or LinkedIn URL and returns a structured profile with more than 15 data points, including industry, employee count, revenue range, headquarters, and tech stack. It also offers company search with multi-parameter filters, lookalike discovery, and reverse email lookup, with full REST API access on every plan. Drawing on hundreds of millions of records cleaned to the best companies and profiles, CompanyEnrich helps go-to-market teams work with reliable, up-to-date data.