Strategic Philanthropy for High-Net-Worth Donors • Exclusive Sailing Retreats for Finance Leaders

Transform How You Give and Connect

Craft a Lasting Legacy or Forge Unforgettable Connections

Shape Your Future with Purpose

Whether you’re driven to maximize your philanthropic impact or seek transformative experiences at sea, your journey begins here. Select your path below:

Design Your Legacy

Build a tailored giving strategy that aligns with your wealth, values, and vision for global change.

Explore Retreats

Join an exclusive sailing retreat where finance leaders network, innovate, and recharge in the Mediterranean’s most inspiring settings.

From Strategic Giving to Unforgettable Experiences, We Deliver Results

Three Pathways to Transformative Impact

Our expertise spans the worlds of philanthropy and adventure, offering tailored solutions for high-net-worth individuals and finance leaders. Here’s how we help you achieve your goals:

Service 1: Philanthropic Strategy Design

We craft bespoke giving plans that align with your values, wealth management goals, and desired legacy. Whether you’re establishing a family foundation, optimizing donor-advised funds, or seeking high-impact charities, we turn intention into measurable outcomes. Your generosity deserves precision.

Service 2: Impact Investment Curation

Move beyond traditional donations. We identify social impact investments and nonprofits delivering quantifiable returns—whether in education, climate tech, or global health. Our proprietary Impact Alignment Matrix™ evaluates opportunities against your financial objectives and the UN Sustainable Development Goals.

Service 3: Executive Sailing Retreats

Recharge and network aboard luxury yachts in the Greek Isles. These curated voyages blend peer-led discussions on ESG trends with adventure—think sunrise strategy sessions followed by afternoon snorkeling in hidden coves. Exclusively for CFOs, fund managers, and senior finance professionals.

why choose us?

Where Expertise Meets Innovation

With 15+ years advising ultra-high-net-worth donors and Fortune 500 foundations, I bridge the gap between philanthropy and wealth management. My approach combines rigorous analysis with deep empathy—because impactful giving isn’t just about writing checks; it’s about crafting legacies.

For sailing retreats, I partner with seasoned captains and hospitality experts to create voyages that inspire both collaboration and rejuvenation. This isn’t a vacation—it’s a strategic reset.

About Claus

Your Guide to Purpose-Driven Success

I’m Claus Geissendoerfer, a philanthropy advisor and sailing enthusiast with a passion for connecting visionary donors to transformative causes—and finance leaders to transformative experiences.

My career began in wealth management, where I saw firsthand how poorly aligned giving strategies diluted clients’ impact. Today, I work exclusively with high-net-worth individuals, foundations, and family offices to ensure every donation drives change. When I’m not advising clients, I’m hosting sailing retreats that redefine professional networking.

15+ Years of Philanthropic Strategy

Advised $500M+ in charitable assets, helping clients align their giving with personal values and financial goals.

Global Network

Partnered with 100+ nonprofits and social enterprises worldwide, leveraging a proprietary 50-point framework to identify high-impact opportunities.

Curated Sailing Retreats

Hosted 20+ exclusive voyages for finance leaders, blending ESG strategy sessions with luxury networking in the Greek Isles.


Your Vision, Our Expertise—Together, We’ll Redefine Impact

Ready to Maximize Your Impact—or Set Sail? Let’s Begin.

Whether you’re ready to maximize your philanthropic impact or set sail on an unforgettable voyage, the journey starts with a conversation. Share your goals, and we’ll craft a solution tailored to your unique needs.

Get in Touch:

  • Fill out the form below to schedule a consultation or request more details.

  • Prefer a direct approach? Reach out via email claus@amstadd.com or LinkedIn—we’re here to help