Our Team
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.
Marissa Brassfield
Experience Designer & Member Concierge
Marissa heads up our learning and membership experiences at CTOx™, and is often the first point of contact for new Accelerator candidates. Since 2007, Marissa has served as a fractional COO and strategic communications director, helping mission-driven entrepreneurs and high-performance small teams around the world build communities, develop engaging learning experiences, and optimize internal systems for efficiency and effectiveness. Marissa partners with Lior on select 0-1 ventures, especially those that support the human side of technology and build a bigger future.
Marissa lives in Los Angeles. When she’s not working, she’s usually hiking or playing outside with her family and Rhodesian Ridgeback.
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.
Jessie Sotomayor
Media Buying Expert
With over 16 years of experience in the world of digital advertising, I’ve been at the forefront of scaling some of the largest accounts on the planet. As a media buyer, I’ve managed well over $100 million in paid ads, helping brands of all sizes achieve explosive growth and reach their audiences effectively.
Throughout my career, I've worked across a wide range of industries, from legal lead generation to e-commerce and beyond, mastering the art of optimizing ad spend to deliver the best possible results. I believe in the power of data-driven strategies and relentless testing to find what works – because in this ever-changing ad landscape, staying ahead of the curve is the only way to win.
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.
Paschal Chukwudi
Growth & Marketing Catalyst
Paschal is part of the driving force behind growth at CTOx™, blending insight and intuition into every strategy he shapes. With a focus on scaling meaningful engagements, he empathetically explores the unique mix of pain points and aspirations that tech executives face, ensuring CTOx’s reach is both impactful and resonant. Operating at the intersection of creativity and strategy, Paschal uses his knack for measurability to champion KPIs that keep the team aligned and progressing toward ambitious goals. Known for his analytical mindset and proactive approach, he plays a vital role in shaping initiatives that help CTOx empower more tech leaders to excel in fractional leadership.
Outside of work, Paschal is a devoted family man who finds joy in spending time with his loved ones. Balancing his passion for growth with a deep commitment to faith and family, Paschal brings authenticity and purpose to everything he does.
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 the CTOx 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.
