
Build Your Legacy. Impact The Future.
At Castilla Impact, we stand beside visionary leaders as strategic problem-solvers. We blend creativity, expertise, and action to help organizations break through challenges, build resilience, and leave a lasting impact on the future.
Our Core Values
Collaborative Partnership
We believe the best solutions come from working with you, not just for you.
Creative Thinking
We approach every challenge with imagination, curiosity, and a hunger for innovative solutions.
Strategic Focus
We ground our work in smart, actionable strategies that deliver meaningful outcomes.
Resilience + Sustainability
We help build organizations designed not only to succeed today, but thrive long into the future.

About Us
At Castilla Impact, we partner with nonprofits, fiscal sponsors, philanthropic families, institutional donors, and corporate philanthropy teams to navigate today’s complex legal, regulatory, and operational landscape.
Led by a seasoned nonprofit tax lawyer, former private foundation general counsel, and former managing director for a leading philanthropic and nonprofit consulting firm, we bring a rare combination of legal acumen, operational expertise, and insider philanthropic knowledge to help mission-driven organizations reduce risk, unlock potential, and drive impact.

Purpose-Driven Impact
We are driven by a bold mission: to help visionary leaders spark transformative change that endures.
Services
Risk Assessment & Management
Identifying, assessing, and proactively managing risks across your organization.
Entity Design & Structuring
Expert legal guidance to ensure compliance, manage risk, and strengthen governance.
Donor & Fundraising Strategy
Sharpening fundraising strategies and strengthening donor relationships.
Strategic Planning
Charting actionable, bold strategies aligned with your mission and long-term goals.
Contact Info
Phone
(202) 590-7596
isaiah@castillaimpact.com
Address
Washington, DC