Matrix is an early-stage venture capital firm, investing from idea through Series A.

San Francisco & Boston
Matrix retweeted
Thrilled to announce Light's $46M Series A, led by @matrixvc ⚡️ Light is a fully regulated electricity provider that lets any company launch embeddable, programmable, and customizable energy products for their customers. 100% of new electricity brands entering the Texas market in 2026 launched on Light and revenue is up >10x. The rest of the country is next. I’m excited to join the board and work with Baker, Adam, and team!
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Healthcare’s data problem is now fundamentally an engineering problem, and @metriport is the best technical team I’ve seen tackle it. The result is a meaningfully better customer experience everywhere they’re deployed (incl amzn + gm). Proud to have led their latest $26M round.
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We’re thrilled to announce Suno’s next chapter: a $400M Series D at a $5.4B valuation! 🚀 Our mission has always been simple: more people should get to experience the joy of making music. Huge thanks to our incredible community and investors for building alongside us. Read more from Mikey here: suno.com/blog/series-d-annou…
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We’re excited to be hosting an event with @suno during #BOSTechWeek. Join us for an evening with founders and builders across the Boston tech community. More details below — We look forward to seeing you there! lnkd.in/edrxzAuh
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Congratulations @charlieholtz and the @conductor_build team!
Big news for @conductor_build! We've raised a $22m Series A from Spark and Matrix. We raised this round from @ilyasu at Matrix, who also led our seed round and is joining our board, @nabeel at Spark, @ycombinator, and founders of Notion and Linear. We're grateful to be working with investors we trust and admire. Here’s how we got here and where we’re going:
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Matrix is proud to be a founding host of Boston’s first-ever @Techweek_ , alongside partners like a16z. As a firm built by former founders and operators, we’re excited to support a week dedicated to the builders, technologists, and ideas shaping what’s next. We’ll be hosting an event during the inaugural week and look forward to welcoming founders from across the ecosystem. Submissions to host events are now open: tech-week.com/boston #BOSTechWeek
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Thrilled to work with the @boldvoiceapp team. Congrats @AnadaLakra @Ilyausorov
Excited to announce our series A fundraise at @boldvoiceapp. The work continues!
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Matrix retweeted
Another consumer experience being reimagined in the age of AI. Very excited about this deeply creative team, this product and this investment! @thecosmos @9th
Today marks a new era for @thecosmos. We're excited to announce our $15M Series A, co-led by @ShineCapital and @matrix, with participation from @GVteam, @Accel, PNP, and @acasalena. We're also releasing a few big updates that point to the future we're building toward: — New profiles that reflect your taste — A more social following feed — And so much more to come Cosmos is where inspiration lives. Come dream with us.
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We built the thing everyone knows should exist but doesn’t.
Tens of millions of people are turning to AI for health questions. Not because they think AI is smarter than a doctor—because it's a place they finally feel heard. It’s available 24/7, never rushed, and speaks plain language. But those conversations lack context and often go nowhere. They’re not connected to health history or to actual care. General Medicine is changing that. Today we’re sharing a new way to connect feeling heard to getting care. We automatically gather your health history in one place where you can discuss with an AI chat that’s designed by our doctors to help summarize your health and figure out what should come next. You can schedule exactly the care you need directly from your chat and your General Medicine doctor will review everything in advance. At your visit, they know exactly where to start. You’ve almost certainly never seen your health story like this before. Try it, ask questions, get care you might be putting off, and share your feedback: Generalmedicine.co/ai
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Tristan and his team at dbt Labs have built a remarkable company and community. And they fit together with Fivetran like peanut butter and jelly. Onwards and upwards, together!
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Every digital artifact can be expressed as code and code gen is coming to every digital product. Preston and Eitan are building lightning fast models and infra for devs implementing coding agents. Privileged to work with this supremely talented team alongside friends at a16z!
.@relace_ai has raised $23M to build the rails for AI code generation. This round is led by @a16z, with participation from @matrixvc and @ycombinator. LLMs have proven they can write code—but scaling that code into production still needs better infrastructure. Relace is building exactly that: the infra layer where models and systems are co-optimized for code generation. We’ve already shipped: - The fastest apply model on OpenRouter (10k tok/s) - State-of-the-art code reranking and embeddings models These models have already processed tens of millions of requests from customers like Lovable, Magic Patterns, and Orchids. Now, we’re taking it a step further: with Relace Repos, we’re working on a new source control system that’s built for the age of AI-generated code, with native retrieval and deep integration into our models. If you're looking to build code generation into your product, please reach out!
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Ciena just announced it is acquiring our portfolio company Nubis Communications. Great news for both! Ciena gains an exceptional team, phenomenal products, and a breakthrough technology portfolio—and the Nubis team will turbocharge their journey with Ciena’s resources. Congratulations! businesswire.com/news/home/2…
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Agentic interfaces really need domain specific primitives and integrations to reliably nail outcomes for non-technical users and go beyond demoware. We're going to see AI-first startups slogging to backfill those as aggressive pre-AI mid stage companies layer AI interfaces on top of years of deep engagement with customers. Parabola is a perfect example of the latter and their new AI phase is here!
Most software has evolved. You describe what you want, and it just works. But despite the promise of AI, operations teams have been totally left behind. Still exporting csv files, cleaning data by hand, and getting stuck running the same agonizingly manual workflows over and over. We built the new @tryparabola for them. Now, turning operational expertise into automated workflows is as simple as describing what you want.
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Big congrats and well earned @saileshtalks and @bayasystems team!
Baya Systems accelerates innovation with $36M in Series B funding led by @MaverickSilicon, with support from @matrixvc , @IntelCapital, and @Synopsys. Expanding our team and advancing chiplet/SoC design to meet growing AI-driven demand. READ: bit.ly/3C9CsoJ #Chiplets
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Matrix retweeted
We’re going to hire a jr member on our investing team in the new year. See below and email scott@ / cc me if interested.
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Big news today: @GentraceAI raised our $8M Series A led by @MatrixVC. We’re celebrating by launching Experiments, the first collaborative testing environment for LLM product development.
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Matrix retweeted
JJ and I met at FB. When he sold his first startup, we had a conversation about money that I’ve had with dozens of acquired founders. It goes something like: “No, the wealth managers don’t have any big secrets. Just buy indices and chill.” JJ’s second startup turns that notion into a product for everyone: customizable index investing, tax loss harvesting, and – importantly – no fees! Excited to be involved as both investor and customer.
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Congrats to Mevo on their $19M Series B, led by @tjparker. Mevo is tackling a huge opportunity in Brazil: digitizing prescriptions where paper was the norm. With 10M+ patients using Mevo this year alone, they're well on their way to transforming pharmacy for 150M+ Brazilians.  Read more: endpts.com/former-amazon-pha…
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Excited to back Pedro and the team at Mevo -- leading e-prescription vendor and consumer healthcare marketplace in Brazil. The end-state cx for pharmacy in most countries will look a lot like this. And Mevo is the farthest along I've seen, anywhere. endpts.com/former-amazon-pha…
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