Germ Network’s cover photo
Germ Network

Germ Network

Software Development

Start the conversation, faster

About us

Start the conversation faster with end-to-end encrypted messenger Germ DM. No phone numbers ever, secured with open standard Messaging Layer Security—with Bluesky linking in beta now. Available for iOS in the App Store. Built by a former social media professor and the former iMessage privacy engineer, and advised by the protocol engineers who brought you "https."

Website
https://germnetwork.com
Industry
Software Development
Company size
2-10 employees
Type
Privately Held
Founded
2022

Employees at Germ Network

Updates

  • Germ Network reposted this

    Thank you to the San Francisco Business Times for recognizing me as one of their Business of Pride 2026 Outstanding Voices. It was genuinely moving to receive this award with my wife by my side, surrounded by LGBTQIA leaders in business and civil society from across the Bay Area. As I discuss in the interview, Germ Network emerged from my research into social media and my work with young people on their communication practices, but it was also shaped by my own experiences navigating overexposure as I sought new relationships online. But I'll share another reflection here. Both meeting my wife on Tinder and founding Germ happened in a span of a few years when I was transforming as a person and embracing my agency and my intuition: about who I should date, yes, but also what I was capable of when I made active decisions about my life and my future. As I reconsidered who I truly wanted to date, I also began to suspect that I had a purpose beyond the academy, and that the work I did to empower my students as communicators one at a time could be brought to scale by building them technology that empowered them at every moment of their lives. And by leaning into that I met the most important person in my professional life, also online, my business partner Mark Xue. So, this recognition is very meaningful and I’m celebrating especially hard this Pride month. I'm grateful for this coverage and also to my friend Avantha Arachchi for the nomination.

    • "Stanford lecturer turned founder brings encrypted messaging to Bluesky's millions"
    • Tessa accepting her award
    • A selfie of Tessa and her wife smiling
    • Tessa scrunching her face with her award
    • What was the germ of the idea that turned into Germ? Before Germ, I was a
lecturer at Stanford. I taught writing and studied social media memes, behaviors,
and really the dark side of virality. I saw that myself and my students relied on
secure messaging, but it was disconnected from social media. So I developed a
conviction that we could rebuild social media around secure messaging and
giving people more control over what they shared and who they allowed to
connect with them. And building around this idea, I met my co-founder, who was the privacy engineer of iMessage, and together we built our early-stage
startup.
      +2
  • Save the date: celebrate Pride with Germ! Join us on Thursday, June 25 from 5-8 at iconic SF queer bar El Rio. Germ is queer-led (hi from our CEO Tessa) with several queer team members, and we know our LGBTQIA2S+ community values how Germ DM lets you chat as all your different selves. Come celebrate with our partners Bluesky Social, Heavybit, and Generationship, and meet other Bay Area locals who care about privacy, boundaries, and (of course) great music. RSVP at the link in comments, and see you there!

    • No alternative text description for this image
  • A Germ first: our iconic green cap is now digital. Two weeks ago, we dropped the Germ DM cap on rpg.actor — and it's been the most-worn item on the gaming platform ever since. The makers of rpg.actor hit us up about releasing a digital version of our sold-out cap to our community. We designed a digital version to be claimed by players who follow us and are registered Germ users via their publicly-indexable AT Protocol records. If you’re new here: Germ DM is a totally private, end-to-end encrypted messenger with no phone numbers required. Since our Bluesky Social integration launched in February, about an app a week built on the AT Protocol—including alternative Bluesky tools Blacksky Algorithms and Skeets, photos app Grain, media tracking app Popfeed and more—have linked directly to Germ to offer seamless, private DMs to their users. But this digital drop has a special place in our hearts. Check out the rpg.actor homepage to see characters in their green Germ hats chilling on screen. Want to spot the Germ cap IRL? Join our newsletter in the comments for first RSVP to our upcoming Pride Party in San Francisco.

    • the rpg.actor homepage featuring a bunch of characters walking around, with several in the green germ cap
    • Germ DM Cap
HEADWEAR
A Germ cap for people who love to yap
Gifted from germnetwork.com for using and following Germ DM
Created by Germ Network
    • The IRL green germ cap styled with houseplants
  • Germ Network reposted this

    Can we protocolize consent? At Germ, we think so. Consent bridges contract law, digital rights, and sexual health. But in software, it shows up in shallow and irritating ways, as a splash page or pop-up keeping us from where we’re trying to go. Real consent is much richer—it’s the foundation of healthy connections and even societies built on trust, mutuality, and evolution. For too long, privacy software has overlooked consent. That’s why many of the best-in-class private messengers made early choices like sending notifications to everyone in your phone contacts, or waiting until recently to help you obscure your phone number or share different display names with different groups of friends. And while common wisdom is that young people and especially young women don’t care about privacy, Germ’s over 200 user interviews suggest that they care deeply. Not about abstract threats from Big Brother, but about controlling what they share in their interpersonal relationships. That’s why young people today are managing instas, finstas, Snaps, LinkedIns, and even Google Voice numbers. They’re hacking single-identity systems because they refuse to share everything with everyone, all the time. At Atmosphere Conference 2026, the gathering for developers on AT Protocol, the open-social layer powering Bluesky and 1000s of other apps, I went deep on consent and how Germ Network’s Autonomous Communicator Protocol lifts secure messaging off of phone numbers for more flexible consensual connections. Can you imagine a future where you were never afraid to give your phone number to someone? Where a young woman or queer person didn’t have to be afraid of sharing their contact with the wrong person at a party, or a salesperson sharing their contact in an email footer didn’t have to answer every single spam call that came in? This world is possible when we build consent into the technology that connects us. Because that’s the truth about consent the haters don’t want us to know: when we seize the power to say no, it becomes so much more fun to say yes. Watch and read my full keynote, “Consent Before Cryptography,” linked in the comments.

    • No alternative text description for this image
  • Germ DM 3.0.4 Is Live! 🌱📲 Our newest updates make it easier to get started and pick up where you left off. We also narrowed the permissions we request when interacting with your Atmosphere (Bluesky) account so that we’re requesting only the information we need, preserving our commitment to your privacy. After some deep backend work to make sure that users from Bluesky Social and across their 43M-user AT Protocol ecosystem can log into Germ, we’re excited to be working on some new features. Stay tuned! Many thanks also to 👸🏻 Emelia S. for her contributions to this work. You can read more about our OAuth work in Germ CTO Mark Xue’s blog post, linked in the comments.

    • A bright blue and green graphic with the GERM logo and this copy: 

Germ DM 3.0.4 is live!
• Improvements on creating your first atproto card from a friend's Germ DM button
• Clearer instructions for starting your first chat and smarter logic when opening the app
• Fine-grained Auth scopes, so we can request only the capabilities we need for your AT Protocol account
• Significant improvements to login. If you were having trouble logging in, try again!
  • ATmosphere Conf ’26 in Vancouver is a wrap! Germ’s CEO and co-founder Tessa Brown and Founding Engineer Anna M. headed to Vancouver at the end of March to talk shop with the fellow builders behind the 1000+ products built on the AT Protocol, from Bluesky Social with 43M users, Blacksky Algorithms with 2 million users, and Skylight Social with 350,000 users to newer products like Canadian Gander Social, European Eurosky, and collaborative coding product Tangled. And Germ? We’re the secure social media messenger for this ecosystem and beyond, launching straight from user profiles in Bluesky, Blacksky, and about one new app a week. In Vancouver, Tessa and Anna led a workshop on UX research, Tessa gave a talk on the Germ ethos from our cryptography to our user experience design, and we did exactly what you’d expect from builders of a messaging app—we yapped. Shoutout everyone in our collage and all the friends we missed taking photos with. Daniel Holmgren - Paul Frazee - Rudolph Fraser - Roscoe Rubin-Rottenberg - Joe Basser - Clinton Bowen - Devin Gaffney - Erin Kissane - Bryan Guffey - Tynan Purdy - Robin Berjon Next year in San Francisco? 💚  

    • a brightly colored collage featuring images, stickers, and Bluesky posts from all the people mentioned in the post.
  • In September, Germ co-founders Tessa Brown and Mark Xue attended an invitational privacy builders’ retreat hosted by Protocol Labs and Web3privacy now, and were awarded a Cypherpunk Fellowship to support our contributions to the open-source standard Messaging Layer Security. Check out the new case study of the weekend’s program and deliverables, featuring Germ’s work alongside that of fellow attendees from decentralized technology, web3, and civil society. Link to the full case study in the comments. 

    • No alternative text description for this image
    • No alternative text description for this image
    • No alternative text description for this image
  • Last year, we showed up to AtConf as strangers with a secure messaging MVP. This year, Germ launches straight from Bluesky profiles and the conference just made our color palette one of its website themes. AtConf is the community conference for AT Protocol developers, the open social layer powering Bluesky, Blacksky, Tangled, Skylight, and hundreds more apps. We’re building at the bleeding edge of secure messaging and decentralized identities, with an app and a brand that are accessible to everyone. Germ is secure messaging beyond silos, and this is just the beginning. 

    • No alternative text description for this image

Similar pages

Browse jobs

Funding

Germ Network 1 total round

Last Round

Pre seed
See more info on crunchbase