EndoFound invites your organization to join a movement
Seeds of Change
Sponsorship Packet
SIX MONTHS • ONE MOVEMENT • ONE EXTRAORDINARY IMPACT
A campaign for increased access to care, accelerated research, and greater awareness that will bloom at the Blossom Ball on March 8, 2027.
Change begins when each of us plants a seed.
March 8, 2027
BECAUSE NO ONE SHOULD WAIT YEARS TO BE HEARD
The wait has gone on long enough.
Endometriosis affects an estimated 200 million women and people born with a uterus worldwide, one in ten in the United States alone. And those are only the patients who have been diagnosed.
This is not a rare disease. It is one of the most common systemic diseases affecting women and girls, and for decades, endometriosis simply was not taught in medical school. That gap in training, not a lack of care, is why so many in this community have gone unheard for so long.
That delay is not distributed equally. Patients in Black, Latina, Indigenous, and low-income communities wait longer for diagnosis and are more likely to be misdiagnosed.
200M
Affected worldwide
1 in 10
Women in the U.S.
7–10 yrs
Average diagnostic delay
EndoFound • Blossom Ball 2027: Seeds of Change
INTRODUCING SEEDS OF CHANGE
A six-month movement, not a single night.
OCTOBER 15, 2026 · MOSS, NY
The campaign launches with an evening hosted by Elsie Hewitt, joined by Gracie Cashman and Lilah Pate. The earliest sponsors gather, alongside a charity auction.
OCTOBER 2026 – MARCH 2027
The six-month campaign carries the movement forward, with sponsors highlighted throughout as the work takes root.
MARCH 8, 2027 · CIPRIANI 42ND STREET
The 14th Annual Blossom Ball blooms into full effect, featuring both a charity auction and a silent auction.
THROUGH THE END OF MARCH
Momentum continues through Endometriosis Awareness Month, closing out a full season of visibility and action.
EndoFound • Blossom Ball 2027: Seeds of Change
THE THREE SEEDS OF CHANGE
Where the funding goes.
1
Change Access
STATE BY STATE
A focused initiative to tackle insurance barriers to endometriosis care, state by state, engaging policymakers, regulators, and insurers.
"Help us take the fight for coverage state by state."
2
Accelerate Research
A Research Accelerator Fund to move promising science to its next critical milestone: validation, larger studies, and treatment development.
"We want to help promising science get to women faster."
3
Greater Awareness
NATIONAL CAMPAIGN
A national PSA and awareness campaign reaching the millions living with symptoms who don't yet know endometriosis may be the cause.
"We can't help the millions who don't know what they're looking for."
EndoFound • Blossom Ball 2027: Seeds of Change
2027 BLOSSOM AWARD HONOREE
Alexis Roderick Joel
Blossom Ball 2027 will honor Alexis Roderick Joel, who has long lived with endometriosis herself and has turned that experience into action.
Alexis has spent the past year serving as EndoFound's Chair of Advocacy, including time advocating on Capitol Hill on behalf of the endometriosis community.
She and her husband, Billy Joel, have committed their support to advancing endometriosis research and advocacy, reflecting the same spirit at the center of Seeds of Change: turning personal experience into change for millions still waiting to be heard.
EndoFound • Blossom Ball 2027: Seeds of Change
LIVE FROM THE BALLROOM
Beyond the room at Cipriani.
The Blossom Ball will be livestreamed on EndoTV via YouTube, extending the evening well beyond the venue's guest list. We're encouraging supporters everywhere to host their own watch parties.
Because seating is limited by the room itself, the stream turns every sponsor's reach into something that isn't capped by a seat count.
Livestream naming rights
“Livestream presented by [Sponsor]” with on-screen branding (Presenting Sponsor).
A dedicated broadcast moment
A brand mention woven into the program, with logo rotation for Platinum and Gold sponsors.
Branded watch-party toolkit
Stream link, run-of-show, signage, and a welcome video for any sponsor to host their own gathering.
On-air shout-outs
Recognition during the broadcast for sponsors hosting watch parties, plus a listing in the digital program.
EndoFound • Blossom Ball 2027: Seeds of Change
A LEGACY OF IMPACT
Blossom Ball's story so far.
Padma Lakshmi & Tamer Seckin, MD
EndoFound Co-Founders
For over a decade, the Blossom Ball has brought together honorees, advocates, and founders united by this cause. Coverage of the Ball has generated millions of impressions over the years, and video from past evenings, including honoree remarks and red carpet moments, is still being watched today, continuing to introduce new audiences to this cause long after the night itself.
EndoFound • Blossom Ball 2027: Seeds of Change
A LEGACY OF IMPACT
Faces from past evenings.
Halsey
Past Blossom Ball Honoree • 2018
Olivia Culpo
Past Blossom Ball Honoree • 2023
Corinne Foxx
Past Blossom Ball Honoree • 2023
Shown here to reflect the Blossom Ball's history. Their inclusion does not imply confirmed attendance at Blossom Ball 2027.
WHAT YOUR SPONSORSHIP POWERS
Beyond the three seeds.
Landmark Research
Into the causes, diagnostics, and treatment of endometriosis, with the world's leading scientific institutions.
The ENPOWR Program
EndoFound's school-based education initiative reaching students before the 7-to-10-year diagnostic delay takes hold.
Patient Day & Medical Conference
EndoFound's annual gathering of leading clinicians and the patients they serve.
EndoTV
EndoFound's digital platform reaching patients globally with interviews and patient stories.
Federal & State Advocacy
Work that has placed endometriosis on the U.S. policy map for the first time in the disease's history.
EndoFound • Blossom Ball 2027: Seeds of Change
SPONSORSHIP OPPORTUNITIES
Choose your seat in the movement.
* The October 15 launch at Moss is an intimate Benefit Committee event, capped at ~60 guests. Presenting Sponsors receive two reserved seats; other levels receive recognition, with seating as available.
| Presenting $100,000 (x2) | Platinum $50,000 | Gold $25,000 | Silver $15,000 | Table $10,000 |
Tables of 10 | Three | Two | One | One | One |
Welcome Cocktail access | ✓ | ✓ | ✓ | ✓ | ✓ |
Oct 15 launch recognition | ✓ + 2 seats* | ✓* | ✓* | ✓* | ✓* |
Website window (Oct–Mar) | Top + 1 yr | Featured | Featured | Listed | — |
Digital program ad | Premium spread | Two full-page | One full-page | Half-page | — |
Auction underwriting | — | — | Silent Auction | — | — |
EndoTV livestream logo | Naming rights | Rotation | Rotation | — | — |
TOP TIER SPOTLIGHT
Presenting Sponsors
$100,000 — limited to two
The defining partnership of the evening, and of the six-month movement that leads to it. Limited to two organizations, so this remains the top of the house rather than an open-ended tier.
EndoFound • Blossom Ball 2027: Seeds of Change
SPONSORSHIP TIER
Platinum Sponsor
$50,000
Underwrite the evening's opening moment: the Welcome Cocktail reception, where guests, press, and honorees first gather, and where the tone of the night is set.
EndoFound • Blossom Ball 2027: Seeds of Change
Gold Sponsor
$25,000
Underwrite the Silent Auction, one of the most engaged and widely photographed moments of the evening, and a centerpiece of the night's fundraising.
SPONSORSHIP TIER
Silver Sponsor
$15,000
A meaningful presence at the heart of the evening, with visibility across the Blossom Ball's print and digital footprint.
EndoFound • Blossom Ball 2027: Seeds of Change
Table Sponsor
$10,000
A seat at the table, and a place in the story.
Unable to fill your table? Consider donating any unused seats back to EndoFound so that patients, advocates, and young researchers may attend.
INDIVIDUAL TICKET UNDERWRITING
In the room, without a full table.
Partner Ticket
$5,000
Four tickets, pre-reception access for four, listing across digital materials, quarter-page ad.
Friend Ticket
$2,500
Two tickets, pre-reception access for two, listing on digital materials and website.
Individual VIP Ticket
$1,000
One ticket with Welcome Cocktail Pre-reception access.
Individual Ticket
$850
One ticket to the Blossom Ball.
EndoFound • Blossom Ball 2027: Seeds of Change
ENDOFOUND DIGITAL PROGRAM
A keepsake with a year-long reach.
The Digital Program lives on EndoFound's website for a full year, reaching a global audience of patients, clinicians, researchers, and advocates. It also accompanies Patient Day and the International Medical Conference, extending your brand across EndoFound's full event calendar.
Full Page Ad
$3,500
Half Page Ad
$2,500
Quarter Page Ad
$1,500
Ad submission: email camera-ready copy to ejournal@endofound.org. All submitted ads must comply with applicable laws and EndoFound's editorial standards.
ENDOFOUND IMPACT
Coverage Highlights
Blossom Ball has resulted in tens of billions of media impressions and coverage of the event is an annual staple in major U.S. media outlets.
The patients are not waiting anymore.
Neither should you.
The question is no longer whether endometriosis deserves attention. The question is who will work with us to fund what comes next.
Karen Doniger
Board of Directors
karen.doniger@endofound.org
Jeanne Rebillard
Managing Director
jeanne@endofound.org
Andoeni Ruezga
Marketing & Program Development Specialist
andoeni@endofound.org
Or complete the commitment form on the following page.
The Endometriosis Foundation of America is a 501(c)(3) tax-exempt organization. Tax ID: 20-4904437