Run your nonprofit
with confidence and clarity.

Fixes for visionary nonprofit leaders — from an expert who’s seen it all

Where’s the user manual for this job?!

You took on this work to champion a cause you believe in. But if it feels like…

  • You’ve been dropped into the deep end

  • You’re expected to build the plane while flying it solo

  • Juggling all your responsibilities is swallowing your life

  • Burnout is waiting on the other side of your next board meeting

You’re not alone. I’ve swum in these waters, flown the plane through bumpy skies, juggled those knives, and looked burnout in the eye.

Every nonprofit leader needs support to really make an impact — and that’s what I’m here for. 

Bring Out The Kickass Leader In You.

Your organization has been waiting for a leader like you to turn vision into impact for the cause.

Get shit
done

Run any nonprofit — not just the one you’re in now — with confidence and clarity.

Unleash your superpower

When you can solve problems and get the job done faster, you can be a change agent and love your life.

Take back
your balance

How Can I Help?

The one-year Nonprofit Fixer Fellowship will build your community, career, confidence, and cause.

Group
Coaching

1-on-1 Coaching
and Consulting

The Leadership Level-Up program is a 12-month personalized engagement for existing and emerging nonprofit leaders.

Tools
and Trainings

Find on-demand resources and self-paced trainings to help you fix your biggest challenges on your time.

Who I Work With

New
and emerging
executive directors

Founders
and seasoned
executive directors


Fundraising
Leaders


Board
Leaders

  • “Being an ED can be isolating — but Sean is a great listener, asks a lot of questions, and helped shift my mindset when I needed it most. It's been great talking to someone with so much knowledge and experience. We worked through many things I was struggling with, and I walked away with a plan. Money well spent!”

    Laura Carmichael, Autism Alliance of Northeastern NY

  • “Working with Sean has been a transformative experience. He provided a dedicated space for thought partnership, expert guidance, and a healthy dose of truth serum! Sean has been one of the most encouraging coaches I have encountered and an invaluable resource.”

    Marcela Barrientos, Co-Executive Director, New York Civic Engagement Table

  • “I was at a total loss from the impact of the pandemic overall and desperately needed insight, direction and resources. Sean just ”gets it,” from years of real experience running nonprofits — I didn’t have to spend time explaining my challenges. He brings real understanding, practical insight and options for direction, an ability to instill confidence with humility and integrity.”

    Krista Girty, Ozone House

Don’t waste another day spinning your wheels.

  • 1. Tell me about it

    Let’s talk about your unique goals and challenges, then I’ll share my recommendations for our next steps.

  • 2. Pick your fix

    We’ll find your best fit: my group or one-on-one coaching, consulting, or training.

  • 3. Become unstoppable

    You’ll be a rockstar with the support, tools, and skills to run any organization.

BOOK YOUR DISCOVERY CALL

I got through it. I can help you get through it too.

I’m Sean.

In my more than 30 years of nonprofit experience, I’ve led five organizations as executive director — and seen the good, the bad, the ugly, and the life-changing. 

I had to do a lot of things the hard way to become a successful leader, but now I can show you the easy way: shortcuts to success without cutting corners. 

If you’re looking for a keep-it-simple, no-B.S. copilot to help you navigate this world, let’s get to know each other. 

What’s New?

The Nonprofit Fixer™ Blog offers immediately useful tools, tips, tactics, and insights to raise money, build a rockstar board, and transform your executive director leadership.

Featured
Interim Executive Directors: All Your Questions Answered
leadership
Interim Executive Directors: All Your Questions Answered
leadership

Learn the ins and outs of the interim executive director role from a ten-time interim executive director. Insider insights on hiring, skills, pay scales, and more.

Read More →
leadership
10 Mistakes I Made as a Nonprofit Executive Director
leadership
10 Mistakes I Made as a Nonprofit Executive Director
leadership

Making mistakes is part of leadership, but nonprofits tend to focus only on the victories. Learn what I’ve done wrong as a 5-time ED so you can avoid the same missteps!

Read More →
leadership
Why Nonprofit Leadership Is Surprisingly Lonely (And What to Do About It)
leadership
Why Nonprofit Leadership Is Surprisingly Lonely (And What to Do About It)
leadership

Like leaders in the for-profit sector, many nonprofit executive directors feel surprisingly lonely. Learn why leadership can be so isolating – and how to beat the solitude!

Read More →
leadership
How to Write a “Thank You” Note After Your Event - Using AI
fundraising
How to Write a “Thank You” Note After Your Event - Using AI
fundraising

A timely and thoughtful thank you note can keep your donors coming back. Learn what to include, when to send, and how to make gift acknowledgments easy!

Read More →
fundraising
How to Create a Nonprofit Co-Executive Director Job Description
leadership
How to Create a Nonprofit Co-Executive Director Job Description
leadership

Having co-executive directors for your nonprofit can work - but only if you choose a model, craft a clear job description, and align on the details upfront.

Read More →
leadership
Stop Listing Your Program Features: Here’s How to List Benefits Instead
fundraising
Stop Listing Your Program Features: Here’s How to List Benefits Instead
fundraising

Raise more money, get more volunteers, and build more power for your nonprofit organization by using the right word choices.

Read More →
fundraising
How Nonprofit Executive Directors Should Quit
leadership
How Nonprofit Executive Directors Should Quit
leadership

Leaving a leadership role is never easy. Learn how nonprofit leaders can thoughtfully resign and prepare their organization for transition.

Read More →
leadership
Sabbaticals for Nonprofits Are a Must
leadership
Sabbaticals for Nonprofits Are a Must
leadership

Learn how to create a sabbatical policy for your nonprofit that boosts recruitment, retention, and performance.

Read More →
leadership
What Does a Nonprofit Executive Director Do?
leadership
What Does a Nonprofit Executive Director Do?
leadership

Learn how executive directors create the conditions for their organization’s success, from finance and fundraising to equity and impact.

Read More →
leadership
I wrote your board fundraising appeal letter for you!
boards
I wrote your board fundraising appeal letter for you!
boards

Jumpstart your board fundraising with a free, ready-to-use fundraising appeal letter.

Read More →
boards

 What Our Clients are Saying…

Featured
Leigh Phillips, Executive Director - SaverLife

“Sean helped get my ideas out of my head and into a solid concept paper, and added many terrific ideas of his own that I would never have come up with. Working with Sean has opened my eyes to a whole new set of opportunities for our organization. He understands how to align strategic priorities with funder values and gave me the confidence to pursue a new set of foundation”

Jack Beck, Executive Director - TurnOUT

“Sean is a dream to work with. He understands governance and development inside and out, with a set of tools that can bring any organization's board work and fundraising to the next level. He is prompt, efficient, and knew exactly how to deliver what we needed. We would work with him again in a heartbeat!”

Dr. Erick Arbenz - Founder, Arbenz Foundation

"Sean has been helping me with the overall strategy in launching my foundation.

His many years in of experience have proven invaluable as I navigate compliance, strategy and administrative oversight."

Michael Faith, Former Executive Director & Professional Fundraiser (Copy)

"Sean's new Executive Director BootCamp course is the perfect solution for anyone who is looking for a comprehensive course to help them hit the ground running successfully as an Executive Director. I only wish this course was made 5 years ago when I was a new ED, as it would have helped me navigate my time more skillfully as a new ED."

Lyda S. - Executive Director, Green Teams of Canada

"Sean knows his stuff and it's obvious it comes from years of experience. However, you can't be trained to have empathy or care - you just have it, or you don't. And you do. So when I saw that Sean was listening to me, truly listening and the coaching/advice was coming from a good place of caring - that's when I knew I had made the right choice and was getting real value."

Caitlin Ryan, PhD - Director, Family Acceptance Project

"Sean is a highly skilled consultant who brings a full range of fundraising skills needed by non-profits at all levels from start ups, to mid-range and large national organizations. Sean has years of experience in all aspects of the field from donor relations to grant writing, planning, funding and managing campaigns. I’m grateful for his commitment and diligence in helping us identify and engage funders to support our critical work."

Timos Pietris - Office of President , Long Island University

"Sean Kosofsky’s lecture on the basics of fundraising was incredibly informative. Not only did he touch on tried-and-true methods, Sean also discussed new platforms that organizations can leverage to increase participation in their campaigns."

Interested in Becoming a Fixer Affiliate?

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