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New York City

Excelsior Edge Ventures and Madeline & Co. Present

Eleven

11 New Founders. 11 Days.
11 Startups built in public.
April 22 - May 11, 2026

Apply now

AS SEEN IN

11 Founders

April 22 - May 11, 2026

New York City

11-11 is a live venture-building campaign in which 11 carefully selected Founders each spend one intensive build day working with Madeline & Co. to turn a promising early-stage idea into a Strategically grounded Startup with real momentum.

12 months

Workshops

12 months

Workshops

82+

Happy founders nationwide

Postive Feedback

82+

Happy founders nationwide

Postive Feedback

Startups transformed

Founders

Startups transformed

Founders

Innovators & Creatives

0K+

Community

Innovators & Creatives

0K+

Community

2025-2026

Built on a year of real founder workshops with support from teams at

We almost

Launched

this last year.

Almost.

We didn’t rush 11-11, we built it in real rooms first.

Prince Rumi,

Madeline & Co.

Origin story

Earlier in 2025, we planned to kick off an "eleven startups in eleven days" experiment at Madeline & Co. We were close to hitting send. Then something didn't sit right.

So instead of rushing the public experiment, we chose to invest in the community first.

Apply now

With the support of partners like Cooley LLP, CIBC Innovation Banking, AllianceBernstein, Fractal Tech, Loft 29, and Fabrik, we spent the year in real rooms with real founders.

Seven in-person workshops. 130+ startups. Four to six hours at a time. No B.S. Just structured thinking under pressure.

We refined the frameworks. Sharpened Madeline's workflows. Pressure-tested the system across industries.

Now the original experiment returns with more edge, more proof, and better timing from April 22nd through May 4th.

Our trusted tribes

Partnering

Communities

(04-22-26)

Partnering Communities is a curated group of established communities spanning tech, investment, CPG, AI, creative culture, and social impact. Each one reflects the taste, trust, and social fabric of a different corner of New York’s innovation landscape. Together, they help us bring 11-11 to the people it was actually built for.

The taste makers of NYC

Anson Wu - Ugly Talk, Drew Moffitt - Venture Sails, Johnny Hwin - 57 NYC, Mark Nguyen - The Well Network, Silvia Lupu - Founder Square, Shelley Tanner, Payam Safa - Light DAO, Skyler Birk-Stachon - Tech Pickleball

What we craft

11 Sprints

that

Drive

results

(01)

Innovation

(02)

Strategy

(03)

Design

(04)

Execution

Apply now

Opportunity refinement

Problem Framing

Venture concept design

Business model validation

2 - 4 hours

(01)

Innovation

(02)

Strategy

(03)

Design

(04)

Execution

Apply now

Opportunity refinement

Problem Framing

Venture concept design

Business model validation

2 - 4 hours

(01)

Innovation

(02)

Strategy

(03)

Design

(04)

Execution

Apply now

Opportunity refinement

Problem Framing

Venture concept design

Business model validation

2 - 4 hours

Trusted by the Vanguards

Trusted by Vanguards

Strategy, design, and execution unite, forging distinct ventures through shared conviction and momentum

Ventures shaped

Join us now

The proof is in their words

Madeline & Co.’s brand strategy workshop was one of the most practical sessions I’ve done. I walked away with clear positioning, tangible outputs, and a level of clarity I could immediately put into action.

Sofia Saab

Founder CEO, Eden Labs

The proof is in their words

Madeline & Co.’s brand strategy workshop was one of the most practical sessions I’ve done. I walked away with clear positioning, tangible outputs, and a level of clarity I could immediately put into action.

Sofia Saab

Founder CEO, Eden Labs

The proof is in their words

Madeline & Co.’s brand strategy workshop was one of the most practical sessions I’ve done. I walked away with clear positioning, tangible outputs, and a level of clarity I could immediately put into action.

Sofia Saab

Founder CEO, Eden Labs

Real strategic work

A new era

Deserves

new

rules

Who this is for

We are looking for specific types of founders for this first cohort.

Fit

Not a fit

What’s included

Aspiring founders with real proximity to a broken system

People with a raw but promising startup idea

NYC-based founders for this first campaign cohort

Operators, specialists, and builders who know a problem firsthand

Professionals with strong domain insight

Founders who are coachable, decisive, and ready to move

deadline

Apr 22 - Midnight

Apply now

Who this is for

We are looking for specific types of founders for this first cohort.

Fit

Not a fit

What’s included

Aspiring founders with real proximity to a broken system

People with a raw but promising startup idea

NYC-based founders for this first campaign cohort

Operators, specialists, and builders who know a problem firsthand

Professionals with strong domain insight

Founders who are coachable, decisive, and ready to move

deadline

Apr 22 - Midnight

Apply now

11 Spots Available

Know someone

thinking about starting something important?

Nominate them for the 11-11 campaign.

Nominate a founder

Partnerships? Let's talk!

hello@madeline.one

Copied

From concept to launch

Your

ideas

into

Brand

Apply or get nominated

We review for founder-market fit, problem quality, coachability, and build readiness

Join a 10-minute interview

Shortlisted founders join a 10-minute interview. 11 founders are selected

Join the orientation

Selected founders join a one-hour online orientation before the campaign begins.

From April 11 through April 22, one founder per day goes through an intensive venture-building sprint!

Selected founders join a one-hour online orientation before the campaign begins.

From April 11 through April 22, one founder per day goes through an intensive venture-building sprint!

Selected founders join a one-hour online orientation before the campaign begins.

From April 11 through April 22, one founder per day goes through an intensive venture-building sprint!

transform

stories

Your ideas transform into brand stories

We share the journey publicly across web, email, social, and community channels

We close with a final gathering and campaign recap with all founders and our investor community

Water

Domestic Infrastructure

Desalination

Filtration

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Apply now

Music

Production Platform

Indie Artists

Creative Infrastructure

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Apply now

Life Sciences

Applied Biology

Therapeutics Longevity

Diagnostics

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Apply now

Fintech

Capital Infrastructure

Payments

Treasury

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Apply now

Water

Domestic Infrastructure

Desalination

Filtration

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Apply now

Music

Production Platform

Indie Artists

Creative Infrastructure

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Apply now

Life Sciences

Applied Biology

Therapeutics Longevity

Diagnostics

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Apply now

Fintech

Capital Infrastructure

Payments

Treasury

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Apply now

Water

Domestic Infrastructure

Desalination

Filtration

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Apply now

Music

Production Platform

Indie Artists

Creative Infrastructure

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Apply now

Life Sciences

Applied Biology

Therapeutics Longevity

Diagnostics

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Apply now

Fintech

Capital Infrastructure

Payments

Treasury

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Apply now

Meet the Founders

11 days.

11 Founder

stories

Cara Moore

DAY 1 - Circular Food / CPG

Cara Moore

DAY 1 - Circular Food / CPG

Cara Moore

DAY 1 - Circular Food / CPG

Kyle (Stealth)

DAY 2 - Life Sciences

Kyle (Stealth)

DAY 2 - Life Sciences

Kyle (Stealth)

DAY 2 - Life Sciences

Ashley Comfort

DAY 3 - Women’s Health / Femtech

Ashley Comfort

DAY 3 - Women’s Health / Femtech

Ashley Comfort

DAY 3 - Women’s Health / Femtech

Monica (Stealth)

DAY 4 - FinTech

Monica (Stealth)

DAY 4 - FinTech

Monica (Stealth)

DAY 4 - FinTech

Kristina (Stealth)

DAY 5 - Enterprise Analytics

Kristina (Stealth)

DAY 5 - Enterprise Analytics

Kristina (Stealth)

DAY 5 - Enterprise Analytics

Mat Bertin

DAY 6 - EdTech

Mat Bertin

DAY 6 - EdTech

Mat Bertin

DAY 6 - EdTech

Kamilla Akhmedova

DAY 7 - MusicTech

Kamilla Akhmedova

DAY 7 - MusicTech

Kamilla Akhmedova

DAY 7 - MusicTech

There is no shortage of startup noise. There is a shortage of real founder insight, strategic discipline, and new models that actually move.

11-11 is our answer to that.

Have questions?

Frequently

Asked

questions

Is this a hackathon?

Is this only for technical founders?

Do I need a finished startup idea?

What happens if I’m selected?

Will a real website or MVP actually be built?

Is there an interview before selection?

Is there an orientation before April 22?

What is the equity structure?

Do founders get access to Madeline after the sprint?

Is this a catch?

Can someone nominate me?

Can community partners nominate founders directly?

Is this a hackathon?

Is this only for technical founders?

Do I need a finished startup idea?

What happens if I’m selected?

Will a real website or MVP actually be built?

Is there an interview before selection?

Is there an orientation before April 22?

What is the equity structure?

Do founders get access to Madeline after the sprint?

Is this a catch?

Can someone nominate me?

Can community partners nominate founders directly?

The time is now. Take the leap of faith.

Start

your

Journey

today

Prefer email?

hello@madeline.one

Copied

Press inquiries

For press inquiries please reach out to Izzy Church

Izzy Church

Comms Director, The Agency

Let's talk!

ideas@theagency.work

Copied

The time is now. Take the leap of faith.

Start

your

Journey

today

Prefer email?

hello@madeline.one

Copied

Press inquiries

For press inquiries please reach out to Izzy Church

Izzy Church

Comms Director, The Agency

Let's talk!

ideas@theagency.work

Copied

The time is now. Take the leap of faith.

Start

your

Journey

today

Prefer email?

hello@madeline.one

Copied

Press inquiries

For press inquiries please reach out to Izzy Church

Izzy Church

Comms Director, The Agency

Let's talk!

ideas@theagency.work

Copied

Eleven

Eleven

Eleven

11 New Founders. 11 Days. 11 Startups built in public.April 22 - May 11, 2026

Built on a year of real founder workshops with support from teams at

Built on a year of real founder workshops with support from teams at

We almost

Launched

this last year.

Almost.

Origin story

Partnering

Partnering

Partnering

Communities

Communities

Communities

(04-22-26)

11 Sprints

that

Drive

results

(01)

Innovation

(02)

Strategy

(03)

Design

(04)

Execution

(01)

Innovation

(02)

Strategy

(03)

Design

(04)

Execution

(01)

Innovation

(02)

Strategy

(03)

Design

(04)

Execution

Strategy, design, and execution unite, forging distinct ventures through shared conviction and momentum

Madeline & Co.’s brand strategy workshop was one of the most practical sessions I’ve done. I walked away with clear positioning, tangible outputs, and a level of clarity I could immediately put into action.

Madeline & Co.’s brand strategy workshop was one of the most practical sessions I’ve done. I walked away with clear positioning, tangible outputs, and a level of clarity I could immediately put into action.

Madeline & Co.’s brand strategy workshop was one of the most practical sessions I’ve done. I walked away with clear positioning, tangible outputs, and a level of clarity I could immediately put into action.

A new era

Deserves

new

rules

Who this is for

deadline

Who this is for

deadline

Know someone

Your

ideas

into

Brand

Apply or get nominated

Apply or get nominated

Join a 10-minute interview

Join a 10-minute interview

Join the orientation

Join the orientation

transform

stories

Your ideas transform into brand stories

We share the journey publicly across web, email, social, and community channels

We share the journey publicly across web, email, social, and community channels

We close with a final gathering and campaign recap with all founders and our investor community

Water

Domestic Infrastructure

Some of the strongest applicants may be domain experts, operators, or aspiring founders with real proximity to a broken system in any industry.

Music

Production Platform

11 New Founders. 11 Days.
11 Startups built in public.
April 22 - May 11, 2026