Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

Mailwarm

Active · Prevents your emails from landing in spam.

WebsiteYC profile

Why it ranks

How the rank works
9signal of 100 · rising 2
  • team of 10Team size · YC's directory+5.4
  • went through YCProgram · this site+4

A sum of public facts, not a judgement and not investment advice.

Competitors

OtherInactivePost.fmShared: email, inboxYC S10LondonStartup →Developer toolsAcquiredMailgunShared: email deliverability, through, apiYC W11San FranciscoStartup →AIAgentMailShared: email, inbox, humanYC S25San FranciscoStartup →
Companies closest to Mailwarm
Company
Post.fmShared: email, inboxYC S10InactiveOther
MailgunShared: email deliverability, through, apiYC W11AcquiredDevtools
AgentMailShared: email, inbox, humanYC S25ActiveAI, Devtools

Adjacent

OtherLoopsShared: emailYC W22WashingtonStartup →AISlashyShared: email, inbox, mcpYC S25San FranciscoStartup →OtherAcquiredRapportiveShared: email, inbox, networkYC S10San FranciscoStartup →OtherInactiveGliderShared: email, inbox, largeYC W12PortlandStartup →Developer toolsSendGridShared: email deliverability, api, insight500 Global 2010United StatesStartup →
Companies next to Mailwarm
Company
LoopsShared: emailYC W22ActiveOther
SlashyShared: email, inbox, mcpYC S25ActiveAI
RapportiveShared: email, inbox, networkYC S10 +1AcquiredOther
GliderShared: email, inbox, largeYC W12InactiveOther
SendGridShared: email deliverability, api, insight500 Global 2010Not statedDevtools

Also from S20 in AI

All of S20
AIadynThe first test designed to prevent birth control side effectsYC S20SeattleStartup →AIInactiveAI.FashionAI.Fashion is the AI creative suite for the fashion industry.YC S20Los AngelesStartup →AIAkiflowAll your tasks and calendars into an AI-powered productivity appYC S20CTStartup →AIAcquiredAquarium LearningWe help ML teams improve their models by improving their datasetsYC S20San FranciscoStartup →AIAtomicAPI that lets companies embed investment accounts into their servicesYC S20San FranciscoStartup →AIAcquiredBandit MLBandit ML builds machine learning tools for e-commerce companies.YC S20San FranciscoStartup →
Company
adynThe first test designed to prevent birth control side effectsteam of 7hiringActiveAI
AI.FashionAI.Fashion is the AI creative suite for the fashion industry.team of 11InactiveAI
AkiflowAll your tasks and calendars into an AI-powered productivity appteam of 18hiringActiveAI
Aquarium LearningWe help ML teams improve their models by improving their datasetsteam of 12acquiredAcquiredAI, Devtools
AtomicAPI that lets companies embed investment accounts into their servicesteam of 25hiringActiveAI
Bandit MLBandit ML builds machine learning tools for e-commerce companies.acquiredteam of 4AcquiredAI

About Mailwarm

Mailwarm is the email deliverability company. We help senders get into the inbox and stay there, through products, tools, and services built for both humans and AI agents. ✦ Mailwarm.com: The original email warmup tool. Build sender reputation automatically through real, positive inbox interactions across a large network of mailboxes, with built-in monitoring and deliverability insights. ✦ ThemailX.com: Instant deliverability diagnostics for AI agents and humans. Check all protocols SPF, DKIM, DMARC, Inbox placement and more via MCP, API, or web. Get specific fixes and actions, not just scores. ✦ Mailadept.com: Email deliverability on autopilot. A subscription-based, AI-native service where agents and deliverability experts collaborate to audit your setup, fix issues, and monitor inbox placement continuously. Build reputation with Mailwarm, diagnose problems with themailX, fix and maintain with mailadept. Doing email marketing or cold outreach? Book a call through mailadept.com, we'll show you which one fits.

YC batch
S20 · Summer 2020
Status, per YC
Active
Category
AI
Team size
10
Location
Dubai, Dubai, United Arab Emirates
Checked
7h ago

YC tags: SaaS, B2B, Marketing, Email

Mailwarm in S20: 209 companies, 28% AI

Mailwarm: questions

Which YC batch was Mailwarm in?

Mailwarm was in Y Combinator's Summer 2020 batch (S20).

Is Mailwarm still active?

Y Combinator lists Mailwarm as active.

Where is Mailwarm based?

Mailwarm lists Dubai, Dubai, United Arab Emirates as its location on YC's directory.