Accel

First partner to exceptional teams everywhere.

[Amit Kumar @amitku]

Jenny and team @hellotohera have built something rare: a service families and doctors trust completely. Remarkable to see them scale to thousands of American families. The founder/market fit here is off the charts. What a special story in the making https://t.co/TXXiTNWUEf

[Jenny Lee @jennydhlee]

While everyone’s displacing jobs, we’re creating them. A Hero for every family. 

@hellotohera’s favorite friend 83 year old Stanley Zareff dropped by our office to learn what being a Hero means and announce our 27M Series A led by @BainCapVC, and continued participation by @Accel and @iaventures 🧵

[Accel @Accel]

Context changes everything in speech recognition. Big congrats to the AssemblyAI team on this one.

[AssemblyAI @AssemblyAI]

Until today, a transcription model never knew what your voice agent just asked.

The one we're launching today does.

Universal-3.5 Pro Realtime from AssemblyAI is the first realtime speech-to-text model that takes your agent's side of the conversation as context.

When your agent asks for an email and the caller rattles it off, the model already knows an email is coming, and captures it perfectly. Same for an order number read fast, an account ID, a medication, or a name spelled out over poor quality phone line.

[Accel @Accel]

Space security has needed this kind of operational proof point. Glad to be backing the team delivering it. Congratulations to the @The_TrueAnomaly team on VICTUS HAZE!

[True Anomaly @The_TrueAnomaly]

Today, True Anomaly's JACKAL-0004 spacecraft officially begins VICTUS HAZE mission operations. Alongside @RocketLab and partners from the @USSpaceForce, True Anomaly will operate its Jackal spacecraft and Mosaic command and control system as part of the USSF’s most advanced demonstration of Tactically Responsive Space (TacRS) to date.

We are proud to work alongside Rocket Lab, Space Safari, and the USSF operations community to execute this mission.

Read more on our blog https://t.co/Cpvj0yaedm

[True Anomaly @The_TrueAnomaly]

Today, True Anomaly's JACKAL-0004 spacecraft officially begins VICTUS HAZE mission operations. Alongside @RocketLab and partners from the @USSpaceForce, True Anomaly will operate its Jackal spacecraft and Mosaic command and control system as part of the USSF’s most advanced demonstration of Tactically Responsive Space (TacRS) to date.

We are proud to work alongside Rocket Lab, Space Safari, and the USSF operations community to execute this mission.

Read more on our blog https://t.co/Cpvj0yaedm

[vas natarajan @vas]

With their prior company Sqreen, we saw what damage the @TolmoHQ team can do when the right team is pointed at a vexing security challenge. Round two will be more magical. We need our best and brightest helping to secure this new AI-driven gush of code.

I love this concept of the "Production Knowledge Graph". Kudos to @caseyaylward @accel on seeing this trend before most, and finding the team to meet the moment.

[Casey Aylward @caseyaylward]

Congrats on coming out of stealth @TolmoHQ!

My favorite thing about this team is that they demo something every time I see them. My second favorite (and arguably the more special) thing is that @pbetouin @JbAviat @arnaud_breton and @poledesfetes have come back together after their time @SqreenIO to rethink one of the most important problems in security.

More below.

[Accel @Accel]

Today’s security tools were built for a world where developers wrote the code. As agents author and ship more software, vulnerabilities are becoming harder to trace, understand, and fix.

@TolmoHQ is changing this.

[Pierre Betouin @pbetouin]

Let's go! We're out of stealth with @TolmoHQ!

AI is completely redefining how software gets built. And how it's being attacked. Helping define what security means for this new world was impossible to resist. We had to go back!

We’re building the AI agent fleet to secure production environments. Our security agents continuously work on a live production knowledge graph that connects data from code, cloud services, containers, databases, and third-party providers.

Imagine high fidelity pictures of what you’re building, with a tracked history of changes at scale!

Our team spent years on the offensive side, breaking into cloud services, kernels, or cryptographic implementations, as well as building observability and security solutions for thousands of customers in production at Datadog.

Over the last few months, we’ve raised $22M, led by Accel and Y Combinator, assembled a stellar team in San Francisco and have been iterating with our first 45 design partners. It’s go time!

Joining me today to announce Tolmo: my cofounders @JbAviat, @poledesfetes, and @arnaud_breton, alongside @msuiche and our early team @wbeuil, @jimmycaputo, @cryptonitemmk, @theraniarnia, and @TylerHaydenSF.

We're psyched to embark on this new journey together!

We're building Tolmo in the open, and we're looking for feedback. Would love to hear your thoughts about what we're building!

https://t.co/1UbONYeIne

[Accel @Accel]

Today, we announced we’re leading Twenty’s Series B. When the stakes have never been higher and speed is critical, Twenty is bringing to life AI-native cybersecurity that is highly scalable while keeping humans in control of every consequential decision.

Co-founders Joe Lin, Leo Olson, Pete Sorrentino, and Skyler Onken bring deep experience in national security, cyber intelligence, and military cyber operations to their leadership at Twenty. We couldn’t think of a better team to tackle this mission-critical challenge.

Read more about the round from Accel’s @jturnersf and Pierce Daly: https://t.co/DmzMICCm92

[Harry Stebbings @HarryStebbings]

"To stay competitive in AI, America needs to take physical infrastructure seriously.

That means building more data centers, expanding power capacity, and making decisions based on facts rather than fear-driven narratives about AI and infrastructure.

The bigger opportunity is not focusing on job destruction, but on enabling a new generation of companies that can create massive economic value with small teams and drive trillions of dollars of new GDP." @AravSrinivas

What one single change would make the biggest difference to American competitiveness in the AI race @shaunmmaguire @mattocko @sethbannon @rabois @Sethwinterroth

[Sysdig @sysdig]

Excited to welcome Hatem Naguib as Sysdig's new CEO. 🎉

35 years scaling platforms through major technology shifts. Joining at exactly the right moment as AI reshapes cloud security.

Welcome Hatem! 👋

https://t.co/NZbGaizvX5 

#Sysdig #Leadership #CloudSecurity

[Jesse Zhang @thejessezhang]

Today, we’re launching Duet Autopilot, the first verified self-improving AI agent for CX!

It automatically analyzes conversations, identifies opportunities for improvement, validates updates, and surfaces them for human review, improving itself with each cycle. 👇

[Decagon @DecagonAI]

Introducing Duet Autopilot, the first verified self-improving AI agent for CX.

It automates agent improvement by turning conversation signals into validated improvements ready for human review, helping agents get better with every conversation. 🧵

[Accel @Accel]

We're still in the very early innings of the AI infrastructure buildout. The companies that define this era are the ones building the foundation what what comes next. @kiwicopple & @AntWilson have seen this opportunity from day one, and we're proud to be building with them.

[Paul Copplestone - e/postgres @kiwicopple]

Supabase has raised $500M at a $10B valuation

In this round we are giving @supabase employees the opportunity to cash out 25% of their vested options. We have done this in every round since inception.

We do it as a “cashless transaction” so that employees don’t need to front any cash to exercise their options. This is the friendliest way we could design it until we can offer RSUs.

On top of that, we give employees a 10 year exercise window: whether they stay or leave the company. The typical/default window is 3 months. IMO, equity is earned and employees shouldn't be penalized because they don't have the cash to exercise within 3 months of leaving a job (often that's the time they need the cash/certainty the most).

[Evan You @evanyou]

I've left most of what I want to say in the VoidZero blog post. But worth repeating:

Thank you @voidzerodev team for trusting me and joining me on this wild ride. I am very proud to have assembled such a talented team and even prouder of what we have built together.

Thank you all our investors for believing in my vision, in particular @caseyaylward from @Accel who led both our Seed and Series A.

Thank you the @vite_js community. Vite and VoidZero wouldn’t have come this far without your trust and support. We will continue building with all of you, together, in the open.

And thank you to everyone that made this happen at @Cloudflare. Looking forward to working with you all!

https://t.co/0ly53VCOSr

[Paul Copplestone - e/postgres @kiwicopple]

Supabase has raised $500M at a $10B valuation

In this round we are giving @supabase employees the opportunity to cash out 25% of their vested options. We have done this in every round since inception.

We do it as a “cashless transaction” so that employees don’t need to front any cash to exercise their options. This is the friendliest way we could design it until we can offer RSUs.

On top of that, we give employees a 10 year exercise window: whether they stay or leave the company. The typical/default window is 3 months. IMO, equity is earned and employees shouldn't be penalized because they don't have the cash to exercise within 3 months of leaving a job (often that's the time they need the cash/certainty the most).

[Accel @Accel]

Today’s news is a testament to @EvanYou’s vision for making JavaScript developers more productive and building tools they actually want to use. Thank you to Evan and the entire @voidzerodev team for letting us be part of this story. We can’t wait to see what comes next.

Accel’s @caseyaylward writes about why we’ve supported VoidZero from the beginning, and what’s ahead for this team and the 28 million JavaScript developers they build for.

https://t.co/QsGlgZkGu3

[Casey Aylward @caseyaylward]

VoidZero is joining Cloudflare today.

I’m really happy for @evanyou and the team. I’ve admired Evan’s work since long before I met him (Vue days!), so getting to be a small part of this journey has been insanely fun.

Excited for what they’l build next! Blog post below.

[Casey Aylward @caseyaylward]

Great technical talk by @tedzadouri on FlashAttention-4: a deep look at how attention kernels are being redesigned for NVIDIA Blackwell, where the bottleneck shifts from tensor cores to softmax + memory movement.

Also featured: voice of god aka @marksaroufim in the background asking questions.

Link below!

[Accel @Accel]

Good people, sharp competition, and even better conversation. Great co-hosting with you, @DecagonAI.

[Decagon @DecagonAI]

We threw a poker tournament for the top minds in AI.

Shoutout @cognition, @cursor_ai, @perplexity_ai, @anthropicAI, @openAI, @thinkymachines, @midjourney, @tryramp, @xAI, and more who came to the table.

Huge thanks to @Accel for co-hosting.

Already excited for the next one. ♠️

[Accel @Accel]

Every layer of the stack is being reimagined and rebuilt. Congratulations to @AnthropicAI, @cyera_io, @CogniteData, @SocureID, @perplexity_ai, @WeAreLegora, @cursor_ai , @DecagonAI, and @Lovable for being named to the @CNBC Disruptor 50.