Mailwarm vs Zeffy

Side-by-side comparison of AI visibility scores, market position, and capabilities

Zeffy leads in AI visibility (26 vs 20)

Mailwarm

EmergingMarketing

Marketing Automation

Rouen France YC W20 email warmup at $50K MRR within months of launch with 2 employees; $150K seed automated inbox placement and sender reputation for cold outreach competing with Lemwarm and Warmbox.

AI VisibilityBeta
Overall Score
D20
Category Rank
#27 of 34
AI Consensus
68%
Trend
stable
Per Platform
ChatGPT
30
Perplexity
30
Gemini
22

About

Mailwarm is a Rouen, France-based email deliverability and warmup platform — backed by Y Combinator (W20) with $150,000 in seed funding in 2020 — providing businesses and sales teams using cold outreach with automated email warmup services that improve sender reputation and inbox placement by simulating positive email interactions with a network of real email accounts. Founded in 2020 by Amine Benjelloun and Gonzague Hacher, Mailwarm reached $50,000 in monthly recurring revenue within months of launch with a 2-person team, serving businesses that rely on cold email outreach for lead generation and need to avoid the spam filters that flag new sending domains and low-reputation email accounts.

Full profile

Zeffy

EmergingNonprofit Tech

Zero-Fee Fundraising

Montreal zero-fee nonprofit fundraising platform with $1B+ processed; 100% donation pass-through via optional donor tips competing with Donorbox and Classy for nonprofit fundraising technology adoption.

AI VisibilityBeta
Overall Score
D26
Category Rank
#1 of 1
AI Consensus
68%
Trend
stable
Per Platform
ChatGPT
19
Perplexity
26
Gemini
17

About

Zeffy is a Montreal-based fundraising platform for nonprofit organizations that charges zero platform fees on donations — asking donors to optionally contribute a tip to cover Zeffy's operating costs rather than deducting fees from each donation, ensuring 100% of every donated dollar reaches the nonprofit cause. Founded in 2019 by Thibaut Davoult and Nicolas Lafleur, Zeffy has processed $1+ billion in nonprofit donations and provides a comprehensive suite including online donation forms, event ticketing, peer-to-peer fundraising campaigns, recurring donation management, and membership management — giving nonprofits a full fundraising platform at genuinely zero cost.

Full profile

AI Visibility Head-to-Head

20
Overall Score
26
#27
Category Rank
#1
68
AI Consensus
68
stable
Trend
stable
30
ChatGPT
19
30
Perplexity
26
22
Gemini
17
18
Claude
29
26
Grok
18

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