Get more out of your business and live your best life.

Expert EOS Implementer™

The Entrepreneurial Operating System™ (EOS) is a powerful system that combines timeless business principles with a set of simple, practical tools that help entrepreneurs get more of what they want from their businesses, enabling them to crystalize their vision, build discipline and accountability, and cultivate healthy, functional and cohesive leadership and management teams.

Decidifi

Decidifi simplifies decision-making by combining “decision” and “simplify” in its name, representing its mission to make complex choices more intuitive. Whether for personal, professional, or life decisions, Decidifi empowers users to navigate options with clarity and confidence. Using structured scorecards, Decidifi offers a quantitative, step-by-step approach that reduces complexity and highlights key trade-offs, ultimately supporting users to make informed, well-rounded decisions with ease. From everyday purchases to major career moves, Decidifi is your trusted guide for confident decision-making.

Charipillar

Charipillar challenges participants to strengthen the Eight Pillars of Health and Wellness—physical, nutritional, emotional, social, spiritual, intellectual, financial, and environmental—while raising funds for impactful causes. Small, consistent efforts create a ripple effect of personal growth and community impact, reflecting Charipillar’s mission to inspire meaningful change. Just as a caterpillar transforms, Charipillar fosters a metamorphosis that benefits both individuals and society.

Talegy

As a Certified Predictive Index Partner, Talegy sells, services, consults and trains businesses in all things PI. We help bridge the gap between business strategy and people strategy, enabling our clients to build a workforce of top performers, design culture and team dynamics, develop leadership competency, and solve their biggest business challenges through talent optimization.

Masterful Management

Masterful Management is a live, virtual coaching program that helps leaders and managers build practical skills they can apply immediately. Through 1-on-1 to 1-on-4 sessions, participants dive into leadership and management insights drawn from top business books, reinforced by structured discussion, real-world application, and continuous feedback. Designed for today’s fast-moving workplace, Masterful Management blends practical learning, small-group engagement, and a results-driven coaching model to develop confident, effective leaders ready to make a real-world impact.

Replacing the Rainmaker

Replacing the Rainmaker helps accounting firms achieve business development success. We offer an array of resources, including a book and online workshops, all of which are accounting-focused and include specific processes to put ideas into action. Put together, we provide firms with everything they need to ensure their long-term prosperity.

Team Retreatz

Team Retreatz delivers memorable out-of-office gatherings that ignite creativity, passion and productivity. They provide unique opportunities for teams to do meaningful work while growing, developing, learning, and having fun. The transformative experience they undergo ensures employees feel valued and return to the workplace with renewed vitality and purpose.

Becoming a Christian

Becoming a Christian is a book and resource designed to guide individuals through the process of exploring and embracing the Christian faith. It provides a clear and accessible path for those who are seeking to understand what it means to follow Christ, offering practical steps, insights, and reflections for those new to Christianity or looking to deepen their faith. With supporting resources that encourage spiritual growth, the book helps readers navigate their journey with clarity, compassion, and purpose, providing a solid foundation for building a lasting relationship with Jesus Christ.

My Story

Ian Tonks’ journey began in the late 1990s when he led a 650-employee youth sports company that served Major League Soccer, the NFL, and Jack Nicklaus’ Golden Bear International. After marrying in 2006, Ian shifted to a role at a Bay Area university, leading capital campaigns and aiding the school’s transition to NCAA Division II athletics. In 2009, he launched a business development practice to help leaders grow strategically and sustainably. His first book, Replacing the Rainmaker, was published in 2015. Since 2016, Ian has been an Expert EOS Implementer, guiding leadership teams through the Entrepreneurial Operating System® (EOS) to help them clarify their vision, strengthen their leadership, and improve business outcomes. With this experience, he has worked with countless entrepreneurs to successfully transform their organizations and align their people with their goals. With three decades of leadership and entrepreneurial experience, Ian now leads several companies:

EOS Worldwide Expert EOS Implementer: Provides tools to help entrepreneurs clarify vision, build accountability, and strengthen leadership teams.
Decidifi: Streamlines decision-making with scorecards for personal and professional choices.
Charipillar: Offers engaging wellness challenges to boost well-being while aiming to raise $1 billion for charity.
Talegy: Aligns people and business strategies to optimize talent and solve business challenges.
Masterful Management: Provides live virtual coaching to strengthen real-world leadership and management skills.
Replacing the Rainmaker: Helps accounting firms with business development.
Team Retreatz: Creates off-site gatherings to boost creativity, growth, and productivity.
Becoming a Christ.ian: Combines a powerful book and resource-rich website to guide individuals on a personal journey of faith.

Ian holds an MBA from Dominican University of California and a bachelor’s in sports science from the University of Northumbria. He enjoys fitness, golf, family, and travel and lives in Orange County, CA, with his wife and daughter.