Alternatives to KX21
29 alternatives to KX21 in Sales & Lead Generation. Ones the founder approved come first; the rest are listings in the same category.
OpenComment AI
Be known before you reach out
- Same category
- Startup
Recepto
AI-powered B2B sales intelligence platform that detects real-time buyer intent signals from online communities, job boards, and public data
- Same category
- Startup
- India
Ringee
Open calling infrastructure for humans and AI voice agents
- Same category
DOT Lead List
Fresh daily FMCSA DOT leads and CRM for freight dispatchers and brokers
- Same category
Seam AI
Account-based marketing platform that turns intent signals into pipeline through AI
- Same category
- United States
distribute.you
Platform that automates B2B sales outreach by finding buyers, sending cold emails from its own domains, qualifying replies and booking meetings. Charges only
- Same category
- France
autoremind.ai
AI follow-up reminders that escalate tone and stop when they reply
- Same category
- Startup
Thread Otter
Thread Otter is an AI marketing agent for founders that finds buyers across multiple platforms, engages them automatically in your voice, and tracks which
- Same category
VeilStrat
AI adoption signals and buyer intent for go-to-market teams
- Same category
- Startup
FounderPulse
AI co-founder that finds your first customers and gives you one action a day to sign them
- Same category
- France
Lensmor
Event intelligence platform for B2B trade shows
- Same category
- Singapore
Flowkon
LinkedIn automation and email outreach platform for sales teams and agencies
- Same category
- India
MorusAI™
24/7 AI assistant that captures, screens, and books leads for mortgage brokers and real estate agents
- Same category
- Canada
Derrick
B2B data enrichment with emails, phone numbers, LinkedIn data and company information across web app, Google Sheets, Claude and API
- Same category
- France
ListQuay™
Email-checked B2B prospect lists for small agencies and freelancers
- Same category
- Hong Kong
Bavlio
AI-powered sales outreach platform that researches leads and writes personalized cold email and LinkedIn campaigns
- Same category
- MVP
Branimo
AI platform for brand research and hyper-personalized sales outreach
- Same category
- Startup
SnitchFeed
Intent-based social listening platform for GTM teams
- Same category
- Startup
ProudSend
Find your buyers on X and write the first DM
- Same category
ACA (Automated Client Acquisition)
Turn cold prospects into booked sales calls on autopilot with a unified platform for outbound, inbound and content
- Same category
- United Kingdom
-
Smartlead
Cold Email Software for Sales Teams That Run Outbound at Scale
- Same category
- Established
Reply.io
AI-powered sales outreach and cold email platform for automating multichannel campaigns and booking more meetings
- Same category
- Established
- United States
-
Instantly
Sales Engagement and Lead Intelligence
- Same category
- Established
-
Clay
Infrastructure to get any data, run agentic workflows, and launch GTM plays.
- Same category
- Growing
-
lemlist
The only platform you need for outbound
- Same category
- Established
-
Attio
The CRM for agentic revenue
- Same category
- United Kingdom
Pipedrive
The easy and effective CRM for closing deals
- Same category
- Established
- United States
-
Close
The CRM that does the work
- Same category
- Established
- United States
-
folk
The AI CRM for your entire sales motion
- Same category