Top 29 Double Alternatives in 2026
50% positive · 1 user review FreemiumDouble delivers AI-powered lead research, gathering up to 10,000 prospect details per query—including company size, policy, and contact channels—while verifying emails from private feeds. Its API supports filtering by industry, tech stack, and company size for targeted outreach.
We've ranked 29 Double alternatives, including 19 with a free plan. Rankings are based on feature coverage and user feedbacks.
Top-rated alternatives include Smartlead, Instantly, and ExactBuyer Search.
29 Double Alternatives & Competitors, Ranked by User Reviews
Click Compare on any tool to compare it side-by-side with Double.
#1
Smartlead
Smartlead is an AI‑driven cold‑outreach platform that unifies email, call, and SMS campaigns into one inbox. It automates warm‑ups, IP rotation, lead research, personalized messaging, CRM updates, and deliverability analytics to keep messages in primary inboxes.
#2
Instantly
Instantly.ai is a cold email software that uses AI technology and personalization to increase response rates and drive new business.
#3
ExactBuyer Search
ExactBuyer enriches CRM contacts with 115+ attributes, offering AI‑generated next‑best actions, real‑time audience segmentation, talent discovery, and analytics dashboards. It supports API, Chrome extension, CSV upload, and weekly data quality checks for targeted B2B SaaS sales, marketing, and recruiting.
#4
Overloop AI
Overloop AI streamlines outbound outreach by sourcing verified B2B contacts, generating hyper‑personalized email and LinkedIn messages, and tracking engagement. It supports coordinated multi‑channel workflows, enhances deliverability, and offers campaign analytics for sales teams.
#5
Amplemarket
Amplemarket uses AI to generate high‑quality leads, analyze intent signals and competitive data, and create personalized multichannel outreach. It offers deliverability monitoring, real‑time analytics, workflow automation, data enrichment, and a unified conversation hub for sales teams.
#6
Warmer.ai
Warmer AI platform enriches B2B prospects via CSV import, social scraping, company data aggregation, AI‑generated emails. Validates emails, exports to CSV/JSON/CRM, API. Improves response rates and saves research time for teams.
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#7
Success.ai
Success.ai delivers 700M+ verified B2B contacts, email and phone lookup, data enrichment, and a kanban CRM with unified inbox. It supports unlimited multichannel outreach, AI‑generated email copy, and API integrations.
#8
SalesTarget.ai
SalesTarget.ai is a sales platform offering lead generation, automated email outreach, and CRM management with access to 50 million verified leads. It enables A/B testing, analytics, and unlimited integrations to optimize targeting and streamline sales workflows.
#9
IGLeads
IGLeads gathers email, phone, and business info from public platforms (Instagram, LinkedIn, TikTok, etc.) into clean CSVs. It offers AI‑powered keyword targeting, GDPR‑compliant extraction, and automated daily scraping for scalable lead generation.
#10
Leadgenerator.io
Leadgenerator.io automates outbound sales with AI‑driven lead discovery, contact extraction, and hyper‑personalized email outreach. It uses dedicated IPs, inbox warm‑up, continuous delivery, and a built‑in CRM for pipeline tracking and revenue forecasting.
#11
B2B Rocket
B2B Rocket automates B2B sales outreach with AI‑powered lead generation, a searchable 4B‑data contact database, and multi‑channel communication (email, LinkedIn, WhatsApp, SMS). It validates contacts, manages campaigns via AI agents, and offers analytics dashboards for performance optimization.
#12
Clay.com
Clay is an AI-powered data enrichment and workflow automation platform that enhances CRM hygiene, lead scoring, and prospecting. It integrates 100+ data sources and AI research agents to automate inbound and outbound engagement, optimizing GTM strategies for sales and marketing teams.
#13
finalscout.com
FinalScout delivers verified business email addresses from a 500 million profile database, supports AI‑generated outreach, lets users manage contacts, ensures GDPR/CCPA compliance, and offers an API for automated, compliant campaigns across sales and marketing.
#14
Email outreach
Email Outreach Company offers a full outbound automation platform for B2B growth teams, combining authenticated email delivery, multi‑channel LinkedIn‑email workflows, AI‑driven personalization, appointment scheduling, and real‑time analytics to scale campaigns.
#15
Persana AI
Persana AI aggregates data from over 100 sources to define ideal customer profiles and track real‑time intent signals. AI agents craft personalized outreach and sequence content across email, Slack, and advertising, integrating with CRMs for high‑deliverability, scalable prospecting.
#16
ProntoHQ
Pronto builds targeted B2B prospect lists from 100+ data sources, enriches contacts with emails, phones, firmographics and intent signals, detects job changes in real time, cleans and verifies data, and syncs to CRMs for automated outreach.
#17
Mails.ai
Mails.ai automates cold‑email campaigns—creating, sending, and scheduling follow‑ups—while supporting unlimited Gmail, Outlook, Zoho, or custom SMTP accounts. It verifies addresses, warms mailboxes, generates personalized AI copy, rotates inboxes for deliverability, tracks contacts, reports, and offers team collaboration.
#18
Conversion Blitz
Conversion Blitz uses AI to extract and filter contact data from websites and social networks by job title, location, industry, and company size. It verifies emails, runs scalable email campaigns, and routes visitor data to email, SMS or Slack.
#19
useArtemis
useArtemis delivers verified email and phone data from 15+ premium sources, enriches leads with 10+ data points (company, social, SEO, tech stack), and offers AI‑driven natural‑language filtering, Zapier/API/spreadsheet integrations, and GDPR compliance.
#20
Lead Foxy
Leadfoxy streamlines lead generation with a vast database of companies and contacts, enabling easy access to key decision makers' information. Enhance lead accuracy, automate campaigns, and drive deal closure seamlessly with AI-powered features.
#21
Outboundly.ai
Outboundly automates B2B cold outreach by discovering, verifying, and enriching leads from a 300 million‑contact database. AI rep Eva crafts personalized email sequences, while automated warm‑up, sender rotation, and multilingual support optimize deliverability. One dashboard manages campaigns and CRM integration.
#22
Airscale
Airscale offers an API for lead generation and market research, enabling users to create targeted prospect lists, scrape real-time data, and enrich contact information. It supports CRM integration, ensuring accurate and compliant outreach efforts.
#23
AiSDR
AiSDR automates outbound prospecting, lead research, and personalized outreach across email, phone, and LinkedIn using intent‑first targeting and live AI search. It creates full campaign strategies, manages sequences, qualifies responses, and syncs with HubSpot/Salesforce for seamless sales workflow.
#24
GetLeads
GetLeads is an AI‑driven platform that delivers real‑time, verified decision‑maker contacts using advanced filters and social media searches. It matches look‑alike customers, auto‑generates multilingual outreach, tracks engagement, and integrates without API setup.
#25
Aomni
Aomni trains AI agents on company data to produce reports and outreach messages. It aggregates contacts from 20+ sources for decision‑maker profiles and emails or LinkedIn messages, integrating with CRMs to cut research time and improve reply and close rates.
#26
Bitscale
Bitscale consolidates data from 100+ sources, offering verified numbers, intent signals, and a 300M‑record database to build and automate personalized outbound campaigns. It syncs live with HubSpot, supplies AI‑driven enrichment, playbooks, and web‑scraping for efficient prospecting.
#27
Sendbridge
Email Verification uses AI to validate and clean email lists, flagging invalid, disposable, spam‑trap, role‑based, and catch‑all addresses. Real‑time API results and downloadable reports improve inbox placement and sender reputation.
#28
Email Outreach Platform
SendEngage is an AI-powered email outreach tool for B2B lead generation. It automates email categorization and response routing, streamlining campaigns with sentiment tracking, automated follow-ups, and efficient lead transfer to sales teams.
#29
GodmodeHQ
GodmodeHQ automates sales by identifying, sourcing, and verifying leads across Gmail, Outlook, Salesforce, LinkedIn, and web searches. Commands trigger AI agents to build prospect lists, summarize news, draft outreach, extract data, schedule campaigns, and send follow‑ups, streamlining lead research and conversion.