Frédéric Renken

Co-Founder @LassieAI

[Frédéric Renken @fredericrenken]

When we thought about who we wanted as a long-term partner, @arampell and a16z were our first call. Excited to build with a firm so aligned with our vision.

[a16z @a16z]

We’re thrilled to lead Lassie’s Series A.

Most small businesses are run by reluctant operators. Owners set out to serve their customers and communities but end up buried in back-office work.

Dental practices are a perfect example. Dentists train to care for patients, but much of their time is consumed by insurance claims, payment reconciliation, staffing, and cash flow.

Lassie is building AI that runs small businesses, starting with dental practices.

Before writing a line of code, Cofounders Steijn Pelle and Frédéric Renken spent months working inside a dental office, processing payments by hand to deeply understand the workflow.

Lassie is not a copilot that creates more work for the practice to review. It does the work.

We’re excited to partner with @steijnpelle, @fredericrenken, and the @lassieai team as they build toward the small business that runs itself.

By @arampell and @omooretweets

[Frédéric Renken @fredericrenken]

@emieljanson @johanbakken @steijnpelle @LassieAI That was a good connection :)

[@levelsio @levelsio]

This is how you do a great startup video

Humble and chill and a real cool backstory

[steijnpelle @steijnpelle]

Today, we're introducing Lassie and $47M in funding led by a16z.

We're building AI that runs small businesses, starting with doctors' offices.

Lassie is already trusted by 700+ practices across the country, working autonomously to provide them with 30 hours of labor per month.

To get here, we first had to leave Robinhood and Superhuman to work in offices ourselves.

Here's how that went.

[rahulvohra @rahulvohra]

Proud to see @SuperhumanMail alumni doing amazing things!

LFG @steijnpelle and @fredericrenken 😁

[Frédéric Renken @fredericrenken]

Grateful to Alex for telling the story behind Lassie!

[Alex Konrad @alexrkonrad]

EXCLUSIVE: Lassie's AI agent helps dentists save hours of busywork. Now it's raised $35M from a16z.

It started when CEO @steijnpelle heard his own dentist complain about a sea of paperwork -- then embedded in his practice to learn first-hand.

My @UpstartsMediaCo exclusive 👀

[Frédéric Renken @fredericrenken]

@gauravvohra unless you really want people to marinate on something, I think reading should happen in the meeting

[Frédéric Renken @fredericrenken]

@raphaelschaad I like ed sheeran's concept of thinking of creativity as a dirty faucet

you need the dirty water to flow out for a while until you get clean water

[Frédéric Renken @fredericrenken]

I like this guy

[Frédéric Renken @fredericrenken]

I'd love a way to snooze tabs in @arcinternet

I often keep tabs around because I need them later, but they add clutter until I can act on them

and not always worth moving from tab to actual task

[Frédéric Renken @fredericrenken]

@ekzhang1 try Texts!

[Frédéric Renken @fredericrenken]

@jxnlco our app is a retool dashboard :)

[Frédéric Renken @fredericrenken]

@Altimor - Cron
- Flighty
- Uber

[Frédéric Renken @fredericrenken]

ai is cool but when do we get this

[Frédéric Renken @fredericrenken]

@CharleyMa @stedi is up there!

[Alex Arena @alexarena]

Super excited to finally share what our team has been working on for the past few months 🙂

@useinterval: build internal tools right in your app's codebase with zero frontend code. https://t.co/Bf0cjlfOg4

🧵Some backstory: (1/?)

[Chris Marty @_chrismarty]

1/ Feels like just yesterday I was posting here about kicking off a search to find employees #4 and #5 for Lassie. Well, time flies when you’re having fun. Welcome aboard, @yousefa01 and Jeffrey Tang!

Lassie has grown from a team of 3 → 5 and momentum is building! 🔥

[Frédéric Renken @fredericrenken]

jack-of-all-trades!

we're looking for the first business hire to help doctors across the country run their practice

someone who loves navigating complex systems as much as building relationships — and is hungry to own problems from 0 to 1

DM if that sounds like you!

[steijnpelle @steijnpelle]

Come work with me to put doctors — running their own SMB practice — in control of their finances.

We’re recruiting teammate #6, the founding business hire, next.

If that sounds enticing, DM me!

[Frédéric Renken @fredericrenken]

@kushalbyatnal @gaby_goldberg for scrap notes you plan to triage I love @culturedcode

has markdown support and lets you treat your notes like tasks, e.g. mark them done or schedule them

[Mengxi Lu @mengxi]

Great team and great opportunity, 🚀🚀🚀