Get Started

The CTOx Team

Lior Weinstein

Lior Weinstein

Founder & Head Trainer

Lior Weinstein is a serial entrepreneur and strategic catalyst specializing in digital transformation. He helps CEOs of 8- and 9-figure businesses separate signal from noise so they can use AI to drive new value creation, increase velocity, and leverage untapped opportunities. Lior is a tactical turnaround specialist with deep practical expertise in leadership, marketing, and software engineering. He rapidly distills complex strategies and accessible opportunities into a practical, actionable, and future-resilient road map. Lior has built and sold multiple technology companies and holds multiple machine learning and AI patents. His life purpose is dissolving people’s barriers to action so they can drive impact and pursue happiness.

Free lunch with Lior
Marissa Brassfield

Marissa Brassfield

Co-Founder & Head of Coaching

Marissa leads the coaching faculty at CTOx®, and helps Accelerator members step into their bigger vision. Since 2007, Marissa has helped mission-driven entrepreneurs around the world turn big ideas into thriving business ecosystems. Marissa partners with Lior on select 0-1 ventures, especially those that support the human side of technology and build a bigger future.

Marissa is a Los Angeles native. When she’s not working, she’s usually watching F1 with her family or tending to her garden of propagated herbs and flowering botanicals.

Donna NiCuarta

Donna NiCuarta

Head of Membership Experience & Partnerships

Donna is a dynamic leader in membership experience and partnerships at CTOx®, driving engagement and growth through strategic initiatives. She oversees the entire member journey—from impactful onboarding to long-term retention—while skillfully managing the organization’s Sales Gym and CRMx training programs. Her hands-on approach ensures members maximize their use of CTOx’s exclusive client relationship management platform while staying deeply connected to the community. A natural connector with a talent for problem-solving, Donna cultivates meaningful relationships within the CTOx ecosystem. She builds strategic external partnerships and creates valuable opportunities that enhance the member experience, always with an eye toward nurturing a thriving, engaged community.

When she’s not crafting exceptional member experiences, Donna embraces an adventurous lifestyle. An Irish expatriate living in the south of France, she fuels her love for exploration through trail running and travel, often discovering new paths and perspectives along the way.

Kealyanna Cable

Kealyanna Cable

Operations & Engagement Strategist

Kealyanna drives operational excellence at CTOx®, streamlining onboarding, hiring workflows, and training programs to enhance team readiness and scalability. As a strategic leader, she develops event playbooks designed to foster community, inspire collaboration, and create a culture of success and togetherness, all while integrating lead generation with measurable ROI. She also manages contractor and partner relationships to ensure alignment with organizational goals. Kealyanna optimizes the affiliate program with efficient tracking systems, data-driven insights, and enhanced incentives to boost conversions and retention. Focused on outcomes, she fosters collaboration, builds knowledge systems, and enables continuous improvement to support CTOx’s growth and community success.

A dedicated digital nomad, Kealyanna lives and works adventurously. When she’s not at her desk, you can find her exploring vibrant cities, relaxing on sunny beaches, or savoring the local cuisine with her husband on their travels.

Melissa Valder

Melissa Valder

Head of Operations

Melissa keeps the engine of CTOx® running. As Head of Operations, she owns the systems behind the member experience—onboarding pipelines, program logistics, and the internal processes that let coaching, content, and community run without friction. She turns moving parts into repeatable playbooks, spots bottlenecks before they become problems, and makes sure every member touchpoint happens on time, every time. When something at CTOx just works, that’s usually Melissa.

Outside of work, Melissa is happiest away from the dashboard—surrounded by plants, sunshine, and a good podcast on a long walk.

What Drives Us

Launched in January 2024, CTOx® is built on the process-driven frameworks and fundamentals of our sister company CMOx®, which coaches and places Fractional Chief Marketing Officers (CMOx®). CMOx® Founder Casey Stanton met Lior Weinstein when he served as a fractional CMO for Lior’s agency Fortunian. The two developed a fast friendship after discovering their mutual alignment on the value of process-driven systems that enable inevitable growth, and later decided to collaborate to create CTOx to meet the growing needs of modern businesses.

Through CTOx®, we teach CTOs and CIOs the principles of building strong, data-driven technology departments along with the sales and marketing strategies fractional CTOs need to build their businesses. It’s a collaboration built on shared values and deep respective track records of getting results.

When you hire a Fractional CTO from CTOx®, you’re not just hiring a senior technologist, you’d also be getting backdoor access to a team of vetted technology strategists and leaders. When your business hits a tech roadblock, your Fractional CTO can come back to the team and strategize with us, utilizing years of experience with hundreds of businesses to come up with a breakthrough.

Core to the CTOx® approach is Lior Weinstein’s Functional Technology™ Framework, which all CTOx’s learn in our program. We take their technology expertise and hone it into a structured, repeatable, proven process that will be applied to your business. Your fractional CTO from CTOx will make your business successful month after month, year after year.