Warmy
Warmy.io is an AI-powered SaaS platform that automates email warm-up and deliverability testing for B2B marketers, founders, sales teams, and email agencies, using its Adeline AI engine to optimize inbox placement across major email providers.
- Company typePrivate
- Founded2020
- HeadquartersTel Aviv, Israel
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Warmy does
Warmy is an Israel-based, privately held SaaS company (founded 2020, Tel Aviv) that operates an AI-powered email deliverability platform under the Warmy.io brand. Its core product automates email warm-up — simulating natural opens, clicks, and replies across a network of real mailboxes — to build sender reputation and push incoming campaigns into primary inboxes across Gmail, Outlook, Yahoo, Zoho, and Amazon SES. The platform combines automated warm-up, a curated seed list (Gmail and Microsoft 365), real-time inbox placement testing, and continuous domain reputation monitoring, all orchestrated by its proprietary "Adeline AI" engine, which the company states makes approximately 20 million automated decisions per day across hundreds of mailbox parameters. Supporting modules include a Google Postmaster Tools integration, a REST API, an agency workspace, and a Growth Hub with referral/reseller tooling.
The platform is monetized via recurring SaaS subscriptions (no public pricing) plus paid API access, an agency reseller program, and a 25% recurring affiliate commission (90-day cookie, ~$100 average lead value, PayPal payouts monthly). Go-to-market is predominantly product-led: a 7-day free trial with no credit card, 25-second onboarding, and a suite of free top-of-funnel tools (Template Checker, SPF/DMARC generators, Email Deliverability Test, Mailbox Calculator, Sequence Builder, Signature Builder, Inbox Academy). Inside sales handles enterprise and agency deals via demo booking, while a developer-facing API and a partner marketplace (15+ listed integration/reseller partners including GlockApps, ZeroBounce, Bouncer, Emailable, Woodpecker, Ongage, ActiveTrail, SMTP.com, Campaigner, ExpertSender, Inboxroad) extend distribution. Target customers are B2B marketers, founders, sales/SDR teams, email marketing agencies, and lead-gen agencies. The company is SOC 2 Type II certified and has collected multiple G2 Spring 2025 badges (High Performer Mid-Market, Small-Business, Europe; Momentum Leader; Best Software 2025 Top 50 Marketing & Digital Advertising). The company claims 35,000+ businesses and 650,000+ domains on the platform, with 100M+ warm-up emails processed via the API. No institutional funding rounds have been disclosed; ownership appears founder-controlled (CEO/Co-Founder Daniel Shnaider).
Warmy firmographics
Firmographics- Name
- Warmy
- Legal name
- Warmy.io
- Website
- https://warmy.io
- Company type
- Private
- Founded year
- 2020
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Warmy.io is an AI-powered SaaS platform that automates email warm-up and deliverability testing for B2B marketers, founders, sales teams, and email agencies, using its Adeline AI engine to optimize inbox placement across major email providers.
- Ownership category
- akta.pro rank
Warmy industry classification
Industry- Product category
- Email Deliverability Software
- NAICS
- Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (51821)
- SIC
- Services-Prepackaged Software (7372)
- akta.pro primary industry
- Software/Application Support (SaaS, Enterprise Apps) (BPAAACAC)
Keywords
Where Warmy is headquartered
LocationHeadquarters
- HQ city
- Tel Aviv
- HQ country
- Israel
- HQ region
- Middle East
Markets served
Warmy business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Technology or R&D, Marketing or Sales, Personnel, Infrastructure, Operations
Revenue model
- SaaS Subscription: Subscription-based pricing for email warm-up and deliverability services. Customers pay recurring fees for access to the platform, AI features, and monitoring tools. 7-day free trial with no credit card required for initial evaluation.
- API Access Fees: Developers and tech-savvy businesses pay for API access to integrate Warmy's email warm-up capabilities into their own platforms and websites.
- Client Acquisition / Reseller Program: Agency partners can resell Warmy's services to their own clients with special pricing, earning the difference between wholesale and retail pricing.
- Affiliate Commission: 25% recurring commission paid to affiliates for every new paid customer referred, with an average of $100 per lead. Cookie window is 90 days.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Monthly | Affiliate Program |
Go-to-market motion4 records
Distribution channels5 records
Marketing channels10 records
Warmy product offering
Product offeringCore offering
Warmy provides an AI-powered email deliverability SaaS platform that automates email warm-up, monitors sender reputation, and tests inbox placement across Gmail, Outlook, Yahoo, and other providers. The platform is centered on the Adeline AI engine and is sold via recurring SaaS subscriptions with a self-serve 7-day free trial, plus an API for developer integration and an agency/reseller program. Supporting the core platform are agency workspace management, a growth/reseller hub, and a suite of free authentication and cold outreach tools.
Product overview
Warmy is an AI-powered email deliverability platform designed to ensure emails reach primary inboxes rather than spam folders. The platform operates as a unified system combining multiple products: the core Email Warm-Up service uses Adeline AI to automate sender reputation building; Email Seed List provides testing infrastructure across Gmail and Microsoft 365; Deliverability Insights and GPM Integration offer monitoring and analytics; the Warmy API enables third-party integrations. Supporting the core platform are agency management tools (For Agencies), growth features (Growth Hub with referral and resell capabilities), and a suite of free tools including Email Deliverability Test, Template Checker, Cold Email Sequencer, Mailbox Calculator, SPF/DMARC Generators, Signature Builder, Cold Outreach Laws guide, and Inbox Academy educational platform.
Differentiator
Problem solved
Functional benefit
Brands
- Adeline AI: AI-powered decision-making engine that optimizes email warm-up schedules and plans for each mailbox, making approximately 20 million decisions per day to maximize email deliverability.
Products and services
- Email Warm-Up Automated email warm-up service that enhances sender reputation by engaging real people on any topic in any language, targeting 95% inbox placement. AI-optimized warm-up processes include auto-generated personalized warm-up messages, specific topic warm-up, auto archive, mailbox temperature scheduling, and support for major providers like Gmail, Outlook, Zoho, and Amazon SES. For marketers, sales teams, and agencies running B2B or B2C email.
- Email Seed List Curated selection of genuine email addresses from Gmail and Microsoft 365 used as test seeds to verify email performance across various platforms and filters before launching campaigns. For marketers, agencies, and sales teams needing inbox placement verification across providers.
- Deliverability Insights Email deliverability testing tool that checks performance across multiple email providers (Gmail, Outlook, Yahoo, etc.), identifies spam folder placement, and provides enhancement tips. Real-time monitoring dashboard with deliverability metrics, domain reputation, and DNS configuration insights. For marketers, agencies, and businesses managing email channel performance.
- Integration with GPM (Google Postmaster) Integration with Google Postmaster Tools that analyzes domain reputation, spam complaints, and authentication metrics to optimize email warm-up strategies and adjust sending volumes dynamically. Combines Google Postmaster data with Warmy's proprietary deliverability data for faster algorithm adjustments. For senders seeking data-driven reputation optimization.
- Warmy API REST API service enabling integration of email warm-up and deliverability capabilities into third-party websites and applications. Supports automatic email processing and warm-up for web services and desktop applications with 2-minute setup, token-based authentication, and comprehensive documentation. 100M+ warm-up emails sent and 30+ dev teams have launched tools with the API. For developers, AI SDR startups, and tech-savvy businesses.
- For Agencies Centralized email deliverability management platform for agencies, enabling access to employee and client information, mailbox functionalities, subscriptions, and customizable access levels across multiple client domains. For email marketing and lead generation agencies managing warm-up and deliverability for multiple clients.
- Growth Hub Growth platform offering referral program, API integration, and client acquisition features enabling users to earn commissions by referring new customers and resell Warmy's services to their own clients with special pricing. Includes SEO-optimized personal links, built-in attribution, and ready-to-send onboarding flows. For affiliates, consultants, and agency partners.
- Adeline AI AI decision-making engine that optimizes email warm-up processes by analyzing hundreds of parameters per mailbox and making approximately 20 million automated decisions daily. Personalizes warm-up plans, predicts optimal sending times, and proactively identifies high spam-risk emails. Marketed as a sub-brand of Warmy powering the platform's autonomous optimization. For marketers, agencies, and any Warmy platform user.
- Email Deliverability Test Free deliverability testing tool that checks sender reputation, spam score, and inbox placement across email providers without requiring signup. For senders evaluating their current deliverability posture before adopting paid tools.
- Mailbox Calculator Calculator tool that helps businesses determine the optimal number of domains and mailboxes needed based on daily email sending requirements. For senders planning outbound infrastructure.
- Template Checker Tool to test email templates before sending, analyzing subject length, word count, reading time, number of links and questions, spammy words, and personalization to prevent spam flagging. For marketers and sales teams drafting outbound copy.
- Cold Email Sequencer Free tool for building cold email sequences with an AI writing assistant, follow-up steps, and statistics on reply rates by stage. For sales teams and founders running outbound cadences.
- Signature Builder Free email signature generator that creates professional signatures avoiding spam triggers, with multiple templates and customization options. For any business professional setting up outbound email.
- SPF Generator Free tool to generate SPF records for email authentication, specifying authorized mail servers to improve deliverability and prevent spoofing. For senders and IT teams implementing email authentication.
- DMARC Generator Free tool to create DMARC records that safeguard domains against spoofing and phishing threats through email authentication policies. For senders and IT teams implementing email authentication.
- Inbox Academy Free online learning platform with 24 video lessons and 8 modules covering email deliverability, authentication, warm-up processes, and cold email best practices, including a certification program. For marketers, founders, and support teams learning deliverability fundamentals.
- B2B Cold Email Guide Comprehensive guide providing 10 tips for B2B cold email success including warm-up guidance, personalization strategies, and spam avoidance. For B2B marketers and sales teams building outbound programs.
- Cold Outreach Laws Educational resource outlining 10 principles for effective cold outreach including value addition, brevity, and persistence. For sales teams and founders learning outbound best practices.
Quantifiable outcome
- 95% inbox placement rate achieved through email warm-up
- +9 more outcomes
Companies that use Warmy
Customer profileNamed customers13 records
Segments6 records
Ideal customer profiles6 records
Warmy technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration12 records
AI capability6 records
Feature9 records
Warmy partnerships and signals
Strategic signalPartnerships
Eleven partnerships are on record, tiered core and minor.
- MailviocoreStrategic partnership announced June 28, 2026 to solve deliverability problems affecting retention email marketers. Warmy.io and Mailvio combined their AI-powered deliverability platform with Mailvio's primary-inbox deliverability and RFM segmentation capabilities to help revenue-focused businesses achieve better email performance.
- GlockAppsminorEmail deliverability testing and analytics partner providing detailed inbox placement reports, domain and IP analytics, and spam testing integrated with Warmy's ecosystem.
- Email AngelsminorEmail deliverability consulting partner specializing in improving sender reputation, rescuing domain and IP reputation, and providing expert deliverability services.
- MailSoarminorEmail deliverability agency partner with 8+ years of experience optimizing email setups and ensuring message delivery and protection.
- Lead Gen JayminorYouTube's #1 expert in cold outreach and lead generation with Lead Gen Insiders program. Provides training and education that drives referrals to Warmy.
- OngageminorAdvanced email deliverability and marketing platform partner for global brands, reselling or recommending Warmy services.
- Active TrailminorData marketing automation platform partner powering multi-channel campaigns across email, WhatsApp, SMS and mobile push.
- InboxroadminorSMTP service provider partner focused on email deliverability and expert support for inbox placement.
- SMTP.comminorIndustry leader in email deliverability and SMTP relay services powering transactional emails at scale for thousands of brands.
- CampaignerminorFull-featured email and SMS marketing platform for affiliates, performance marketers, agencies, and high volume senders.
- ExpertSenderminorAdvanced email marketing platform partner for creating personalized, data-driven campaigns across email, SMS, web, and mobile.
Scale indicators12 records
Warmy competitors and assessment
Company assessmentDirect peers
- Instantly.ai: Cold email outreach platform that bundles warm-up and deliverability features into its suite. Competes with Warmy's API and agency offerings as a one-stop alternative for AI-driven outbound teams.
- Warmbox.ai: AI-driven email warm-up and deliverability platform. Closely comparable in product scope (warm-up, seed network, deliverability testing) and target customer (cold email senders, agencies).
- Smartlead: AI-powered cold email and deliverability platform with built-in warm-up across multiple mailboxes. Comparable target market (agencies, B2B sales) and overlapping feature set with Warmy's API and agency products.
- Mailreach: Direct email warm-up SaaS aimed at B2B sales teams and agencies. Competes head-to-head with Warmy on automated warm-up, inbox placement testing, and agency account management.
- Lemwarm (by Lemlist): Email warm-up service bundled with Lemlist's cold outreach platform. Direct competitor in the warm-up category, with strong overlap in target buyers (B2B marketers, agencies, SDR teams).
- TrulyInbox: Email warm-up tool focused on improving sender reputation through human-like engagement. Overlaps directly with Warmy on warm-up automation, inbox placement, and SMB/mid-market positioning.
- Mailwarm: Dedicated email warm-up platform with automated engagement and deliverability monitoring. Directly competes with Warmy for the same pool of cold outreach and email marketing customers.
- Woodpecker: Cold outreach and lead generation platform with native email warm-up and deliverability tools. An existing Warmy integration partner that also serves as a competitor for agency and SDR use cases.
Others
- ZeroBounce: Email verification and deliverability platform serving 350,000+ customers. Adjacent ecosystem player that competes on list-cleaning and validation rather than automated warm-up, but overlaps in the deliverability stack.
Emerging players
- GlockApps: Email deliverability testing and analytics platform (spam testing, inbox placement, IP/domain reputation). A Warmy partner that competes in the deliverability-insights layer rather than the warm-up engine itself.
Market position
Strengths5 records
Weaknesses4 records
Key risks6 records
Key highlights7 records
Customer concentration
Warmy social profiles
Digital presenceWarmy compliance and trust
Trust signalCompliance1 record
Warmy financial estimates
Financial estimateRevenue estimate
Valuation estimate
Warmy leadership team
Management profileNumber of profiles
Profiles2 records
Warmy funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Warmy M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Warmy
What does Warmy do?
Warmy provides an AI-powered email deliverability SaaS platform that automates email warm-up, monitors sender reputation, and tests inbox placement across Gmail, Outlook, Yahoo, and other providers. The platform is centered on the Adeline AI engine and is sold via recurring SaaS subscriptions with a self-serve 7-day free trial, plus an API for developer integration and an agency/reseller program. Supporting the core platform are agency workspace management, a growth/reseller hub, and a suite of free authentication and cold outreach tools.
Is Warmy a public or private company?
Warmy is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was Warmy founded?
Warmy was founded in 2020. It employs 11 to 50 people.
Where is Warmy based?
Warmy is headquartered in Tel Aviv, Israel, in the Middle East region.
How does Warmy make money?
Four revenue lines are on record. SaaS Subscription is the primary driver. The others are API Access Fees, client Acquisition / Reseller Program and affiliate Commission.
Who are Warmy's main competitors?
Direct peers on record are Instantly.ai, Warmbox.ai, Smartlead, Mailreach, Lemwarm (by Lemlist), TrulyInbox, Mailwarm and Woodpecker. ZeroBounce is listed as an others. GlockApps is listed as an emerging player.
Does Warmy have an API?
Yes. Warmy's Email Warm-Up API provides full access to integrate top-tier email deliverability tools into websites. The API enables integration of automatic email processing with web services and desktop applications, helping users increase email deliverability and build domain reputation. Benefits include reliability-first programming, seamless integration, enhanced deliverability, and effortless email warm-up. Setup allows connecting accounts in approximately 2 minutes. Over 100 million warm-up emails have been sent through the platform, and 30+ dev teams have launched tools using the API. Developer documentation is at www.warmy.io/api-documentation.
What industry is Warmy in?
Warmy's product category is Email Deliverability Software. Its primary akta.pro industry code is BPAAACAC, Software/Application Support (SaaS, Enterprise Apps). Its NAICS code is 51821 and its SIC code is 7372.