Why we built LetterLeaf

Because teams shouldn’t lose opportunities just because someone missed an email. LetterLeaf was created to help you stay focused, act fast, and never let the right message slip through the cracks. It puts human-first AI into the heart of your communication workflow.

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The friction that sparked LetterLeaf


After almost a decade in SaaS, you get used to wearing a lot of hats.

Product. Sales. Support. Customer success. I’ve worked across all of it. I helped scale a product from zero to 20,000+ users, and somewhere along the way, email became my biggest source of friction.

Not because I lived in my inbox all day, but because everything important came through it.
Bug reports meant for support. Feature requests that needed triaging. Sales intros. Renewals. Partner threads. Internal decisions. All in one stream.

Even on a good day, things slipped through the cracks.
Important messages got buried. People waited too long. I’d follow up days later and feel terrible.

And I started seeing it everywhere. Product managers. Sales leads. Support reps. Everyone was trying to keep up, but inboxes weren’t built for how modern teams actually work.

So I started building LetterLeaf.

- Jimmy Kåsby, CEO & Founder
Our story

Let's embark on the journey of how it all started...

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2024 • January

The Idea

Realized how much time is lost in overflowing inboxes and set out to fix it with AI-powered automation.

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2024• march

Initial Research

Interviewed professionals and teams to uncover exactly where email management breaks down.

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2024 • May

Designing the Future

Mapped out the core features: AI replies, smart prioritization, and automated workflows all in one place.

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2025 • TBC

Beta Release

Kick off development of Letterleaf with early adopters and beta testers shaping the product.

Our vision

To give every team the power to communicate clearly, act decisively, and never miss what matters—by putting intelligent AI into the heart of their workflow.

We believe in clarity

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Focus

We help you cut through the noise so you can focus on what matters. No fluff, no distraction, just clear communication.

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Responsiveness

You shouldn’t have to chase after emails or worry about what you missed. We build tools that keep your team responsive without burnout.

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Human-first AI

Automation shouldn’t replace people—it should empower them. LetterLeaf keeps human judgment at the center, making AI a helpful partner, not a replacement.

Meet our Team

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We're hiring!

Our team is growing fast and we’re always looking for smart people.

Let AI take the load off - start automating your inbox today

LetterLeaf helps teams stay focused by automating email sorting, replies, and escalations — all with one powerful AI inbox assistant.