Mantle - AI-native cap table management for modern founders

For 15 years, our tight-knit team of 9 co-founders has lived and breathed the startup life, from those exhilarating ideation days to the heart-pounding moments of exit. We’ve seen it all, and through it all, one constant thorn in our side was the cap table. 

Remember those late nights, hunched over spreadsheets that seemed to have a mind of their own? Or the ‘modern’ platforms that promised simplicity but delivered a maze of confusing interfaces? We’ve been there. We’ve felt the dread of a miscalculated option grant, the frustration of investor updates taking days instead of minutes, and the sheer time drain that stole us from our true passion: building. 

That’s why we built Mantle, an AI-native cap table management platform designed for modern founders. We envisioned a world where founders could focus on their vision, not their spreadsheets. Where legal precision wasn’t a luxury, but a given. 

With the incredible support of Eniac Ventures, Craft Ventures, Sierra Ventures, and other visionary investors, we’ve poured our experience and passion into creating Mantle. We’ve built a platform that founders, investors, and law firms can actually trust - a platform that feels like it was designed by founders, for founders. 

Join us in exploring Mantle, dive into its capabilities, and share your unfiltered feedback.

This is for you, the founders who dare to dream big and build the future. Let’s build it together.

This looks like an incredibly useful tool! I started using Mantle last year and it’s been a game-changer—couldn’t be happier. The support from the team has been fantastic too. Once I get my own project up and running, I’m definitely jumping on this. No more losing track of changes—finally a way to capture the full story. Congrats on the launch!

congrats on the launch!
Thank you for building Mantle on top of the open cap table format (OCF) and being on the board of OpenCapTableCoalition.com

Companies need to be able to fully own their cap table data and frictionlessly use it with multiple services providers: law firms, tax advisors, secondary platforms and more.

This looks awesome! When I finally get my company up and running, I'm totally gonna jump on this. Mantle seems like it'll save so much hassle no more forgetting all these changes to tell the full story. Definitely bookmarking this for the future!

Hey folks, one of the co-founders here 👋 Thanks for checking out our launch!

Let’s be honest… Cap Tables often go from being incredibly simple (a spreadsheet with a few rows in it) to a labyrinth of endless documents scattered across various folders and inboxes that never seem to reconcile properly after a round. Sound familiar...?

Considering the switch to Mantle? We've got you completely covered with our white-glove onboarding. I wrote about this recently on our blog, and the tl;dr is that we use a mix of AI-powered document classification + extraction with an expert review to get you set up quickly.

As founders, we get it -- dealing with your cap can be hassle so we've constructed our process to make it as friction-free as possible.

Our Product & Ops teams are online and fielding questions - if we're slow to respond, please be patient as we're probably working through our inboxes 🙃

@sabena @deveena @domleung @jarrettq

You weren't kidding about the "modern" in description! Kudos!

this is a very useful tool. Started using mantle last year and couldn’t be happier. great support from the team too. Congrats on the launch!

Startup equity management can be so confusing and stressful, especially for first-time founders that don't want to make mistakes! I can't even imagine having to deal with a ton of spreadsheets on top of this. Mantle has made this so much easier. Now I can focus on how to structure equity grants, and not the mechanics of setting them up.

Congrats on the launch!! 🎉 Incredibly useful and founder friendly platform + amazing team to work with that understand the founder journey and constantly giving back to the community!

Your journey is very interesting. Impressive. Congrats on the launch !🎉

🔥 Huge congrats on launching Mantle! 🚀 As a founder, I know the cap table struggle all too well—spreadsheets that never sync, clunky platforms that overcomplicate things, and the never-ending back-and-forth with legal. The fact that Mantle is AI-native and built by founders who’ve lived through the pain makes this a game-changer.

Instant investor updates, legal precision, and a frictionless experience? This is exactly what the startup world needs. Excited to see how Mantle reshapes cap table management—best of luck on the launch! 🔥👏

Love to see this! We recommend Mantle to all our clients

Fantastic product. Recommend it to all founders.

Yes! So much room for improvement in this space. cc @matt_hodgson

Incredible platform, saves so much time and energy when it comes to our cap table management

Ugh, this looks way better than what we're using

I'm a corporate lawyer who is in all of the different cap table platforms all day. Mantle is moving much faster than all of the other players. They are already ahead of the larger companies in UI and ease of use. And they are building new features that other companies don't have like a tool for visually tracing the history of stock certificates or for auditing your cap table vs. the underlying documents. I think they're bringing much needed competition to the space and are going to be big winners here.

@Mantle @amar_varma1 🎉 Huge congrats on the Mantle launch! As a founder who’s battled cap table chaos myself, your AI-driven approach to unlimited stakeholders + flat-fee pricing feels like a breath of fresh air 💨. Love how you’ve baked real founder pain points (like those cursed spreadsheet errors) into the product DNA. The hands-on support and Eniac/Craft backing? Chef’s kiss 👌!

One thought: Could you add scenario modeling for exit outcomes using your AI? Founders obsess over "what-ifs" during fundraising. Either way, massive respect for turning your battle scars into a tool we all needed.

Looking forward to seeing how Mantle evolves! Any exciting features on the roadmap? 👀

Great Job Guys, Love it

Congrats on the launch! This seems like a very useful product.