There's a better way to build.

Hands-on mentorship. Project-based curriculum. Collaborative, talented peers.

Join our 8-week program and tap into an ecosystem designed to help you level up as an entrepreneur and accelerate your journey from zero to one.

Join 1k+ other founders and sign up for our mailing list to stay up to date on all things Day One. 

Day One Fellows come from the world's top companies:

"I highly recommend Day One and their superstar team. If you are an entrepreneur looking for a strong and supportive community to help you go from zero to 1, then this is the place for you!​"

Olivier Moingeon

Formerly CEO, Bastide - Cohort 1 Alumni

More than a course. More than a community. More like a CrossFit gym - kicking your butt and holding your hand while you build and grow.

 

Day One is an 8-week, cohort based program designed for idea-stage founders.

Starting a business is hard. Don't do it alone.

Join talented founders from across the globe who are building alongside you. Surround yourself with experienced, successful mentors. Find your tribe and set yourself up for a long run of success.

Take away the guesswork. Follow a proven playbook

Follow a company-building playbook created at world-class venture studios. Receive tactical guidance while you put the playbook into action. We've removed the fluff so you can hone fundamental company-building skills.

Time is Money.

Avoid Rookie Mistakes.

Save yourself time, money and heartache with answers and advice from experts. Attend weekly mentor sessions, office hours, pitch reviews and peer collaborations to level up while you get down to work.

Who is Day One for?

There are three good ways to answer that question.

Day One is designed for idea-stage founders who haven’t hit product-market fit yet. You can be right at the starting line, or somewhere in the messy middle. Day One will help you accelerate forward.

Day One is for doers only. Couch Potatoes need not apply. The best Fellows are those who are collaborative and want to build momentum by being a part of a community.

Day One is for founders building both venture backed and non-venture businesses. In fact we have a soft spot in our heart for founders exploring and building bootstrapped, profitable businesses.

"Day One is high touch, unlike any other program out there. We would share what we're working on, share the challenges that we're facing, and get feedback and ideas from the group and mentors and solve the problems together. That's been incredible as we build this new venture. I would definitely recommend Day One to any person who's thinking about becoming an entrepreneur."

- Berta Argente, Business Designer at Polymath Ventures, Cohort 1 Alumni

"I'm amazed at the depth and breadth of experience across the cohort. Day One did an amazing job at gathering a diverse, inspiring group of entrepreneurs and mentors."

- James Clements, Founder, Old Friends, Cohort 1 Alumni

"I came to Day One with the goal to really learn how to do customer discovery the right way, and to be able to know if I was working on something that people wanted - because I think you can spin your wheels trying to solve a problem that nobody really cares about. And with Day One, I was able to learn from both my peers and experts and come away knowing "this is what we're going to do."

- Julia Hutchins, Founder, Bell Bird, Formerly co-founder, Apostrophe Health, Cohort 1 Alumni

"I love having such a great community to lean on. Although it's giving me the classic existential crisis - did I really need to go to MIT? Day One is more than enough!"

- MIT Sloan MBA Student, Cohort 1 Alumni

Mentors

Day One Mentors and speakers have $1b exits under their belts, are serial entrepreneurs, and manage $100m+ funds. Here are just a few of the founders, operators and investors who guide, support, advise and teach within Day One.

Charlie O'Donnell

General Partner - Brooklyn Bridge Ventures

Katie Shea

Partner - Kairos & K50 Ventures

Ryan Begelman

Founder & CEO - Summit

CEO - Bisnow

Karen Cahn

Founder & CEO - iFundWomen

Yonatan Raz-Fridmen

Founder & CEO - Supersocial

Founder & CEO - Kano Computing

Elizabeth Ferrao

Founder - Product Mindset

Technical PM - American Express

Tom Higley

Founder & CEO - XGenesis

Ashish Gupta

Fmr Hedge Fund Manager backed by Millennium Management 

Jesse Morris

General Partner - Human Ventures

Jenny Fielding

Managing Director, Techstars NYC

Founder and GP, The Fund

Julie Markham

COO - Unreasonable Group

Founder & CEO - PingWHEN (Techstars 15)

Joe White

Partner - Entrepreneur First

Alex Maleki

Managing Director - Idealab

Betsy Fore

Founder, Tiny Organics

Judith Erwin

CEO - Grasshopper Bank

Beatriz del Rio

Investor - Vine Ventures

We're partnered with some of the best.

Our partnerships with venture studios, accelerators, investors and service providers form the foundation of our ecosystem.

Apply to join Day One today

You get

8-Week​ Program

Flagship startup-building​ curriculum

Collaborate daily with tight-knit cohort of world-class founders 

Active guidance from mentors and investors

 

Weekly expert-led workshops and talks

Participate in investor + mentor showcase

+ lifetime community membership

Lifetime Community Membership

Connect to fellows across all cohorts through fellow-only Slack + directory

 

Monthly speakers and workshops

Connections across Day One network

Access to library of recorded sessions

Templates, tools and resource library

Members only perks

Join an upcoming cohort

Cohort 2

Program Kickoff

January 24

Cohort 3

Program Kickoff

Late April

Tuition: $1,199

The application takes about 10 minutes to complete.

We offer financial aid, payment plans and deferred payment options for people who need it. Just ask. 

And we're proud to offer a satisfaction guarantee - if you aren't thrilled with your Day One experience, we'll issue a refund any time during the program, no-questions-asked.

Day One is Better Together

Co-Founder Discount

After the first paying fellow, each co-founder from a single startup team will receive a 50% discount. Applicable for up to 3 co-founders. Apply individually and note in the application who your co-founders are.

Join with a friend

 

Join Day One with a friend and each of you will receive $150 off the cost of tuition. Apply individually and note in the application who you are applying with. 

What People Are Saying

Still not sure if you're ready? Talk to a Day One team member or a current fellow one on one to help you decide.

Day One

Programs

Contact Us

Hello@joindayone.com

661 Lincoln Place

Brooklyn, NY, 11216

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