Why We Exist

Too many Business Decisions Are Made Based on Opinion, Instead of Research, Data, & Experiments.

The problem is, everyone has an opinion. But those opinions mean nothing if they’re not backed by research & data, continuously measured, and often challenged.

Because in order to INVEST in marketing and SCALE any business with CONFIDENCE, there are 3 things every business needs:

Have an idea? Run it as an experiment. It will give you the motivation to explore your idea more aggressively, the freedom to fail without judgement, and an opportunity to learn more than any other approach.

  • Research

    Research – You need a process for gathering data and information about every decision BEFORE you make it.

  • Measure

    Measure – You need to know what to track, where to track, and how you’re going to use the information that comes out of it.

  • Challenge

    Challenge – You need a process that continuously challenges your business to optimize, improve, and fine-tune your systems.

Have an idea? Run it as an experiment. It will give you the motivation to explore your idea more aggressively, the freedom to fail without judgement, and an opportunity to learn more than any other approach.

At ConversionAdvocates, Our Team Will Help You Uncover & Explore Opportunities That Drive Business Growth

And since 2014, we’ve helped 100’s of businesses, in widely varying industries, increase conversion rates, gain insights into their customers, and grow their revenue month-over-month using powerful data-driven experiments. Our goal is to help you do the same.

Our Core Values

  • Entepreneurial


    We’re definitely a little scrappy, but we’re always thinking about the big picture. We’re not afraid of failure — we know the lessons we learn will fuel the next big win.

  • Radical Honesty

    Radical Honesty

    Honesty is a two-way street. We keep our egos in check and commit ourselves to strong communication, empathy, and introspection. Our door is always open.

  • Process Driven

    Process Driven

    We learn from every win, and every failure. We believe in building systems that are teachable, repeatable, and scalable not just to make our work easier, but to make us better.

  • Passionate


    We get excited for new challenges, goals, and ideas. We embrace opportunities to learn and level up and we find inspiration and joy in what we do.

  • Growth Mindset

    Growth Mindset

    We’re big on innovation. We like knowing we’re making a difference, then pushing it to the next level. We set clear goals and we are relentless in our pursuit to reach them.

  • Proactive


    We go above and beyond. We like to approach each other with solutions, not problems. We’re natural leaders who take initiative and accountability for everything we do.

Who We Are


    Sina Fak

    Sina Fak is an optimizer and business intelligence professional with a passion for data and experiments. He believes breakthrough moments happen when people, teams, and organizations leverage their data to run elegant experiments that challenge assumptions, uncover learnings, and drive growth. In his spare time, he loves to read and write about psychology, human behavior, design thinking, user experience design (UX), digital transformation and strategy.


    Jeremy Epperson

    Jeremy’s mission is to help startups with the relentless pursuit of exponential growth online. He has launched Conversion Rate Optimization programs for 155+ startups and translated that into a proven and repeatable process to drive growth in your business. This process has generated over $247 million in tracked revenue from winning onsite tests. As a professional speaker, he has presented over 175 times in 47 states and trained over 42,000 Founders, Execs, Marketers, and Growth Leaders. As an entrepreneur, he launched 4 different 7+ figure businesses from scratch.


    Bradley Rodé

    Bradley Rodé is the lead data scientist at Conversion Advocates. He studied business analytics at Pepperdine University and political science at UCLA. When not watching NBA games at two in the morning his local time, you can find him studying Bayesian inference or training Brazilian jiu-jitsu in Africa.


    Lindsay Fowler

    Lindsay is the Head of the Conversion Rate Optimization Team at Conversion Advocates. Helping clients and teams create organizational processes to scale their optimization programs is what makes her happy. With a background in education and over 10 years in the optimization field - she's seen a lot! That expertise has helped drive conversion and revenue lifts for 120+ organizations. In her free time, you can find Lindsay hanging out with her family or reading a good novel.


    Sam Welch

    Sam boasts a 12-year track record in marketing, essential to the growth of numerous Silicon Valley unicorns. A UC Berkeley alum, he excels in guiding dynamic teams and brings invaluable experience as a startup founder. Sam's innovative strategies and practical knowledge significantly contribute to venture growth and success. Renowned for his proactive leadership, he consistently pushes the envelope in the marketing industry.


    Jonathon Yates

    Jonathon is a Conversion Rate Optimization Manager at Conversion Advocates. Originally from the UK, but now living in the Unites States. He has extensive experience working as an optimization consultant, but has also worked at a director level on the brand side which allows him to bring an insider perspective to his consulting. When he's not making websites convert better, you will find him with his family or learning to home brew his own beer.


    Evgenia Lazarkova

    Evgenia is a Project Manager at ConversionAdvocates. Her mission is to make sure every client’s project is executed smoothly, meets established deadlines, and achieves the objectives set forth. In her past work, she has enjoyed working with other people and helping them achieve their personal and professional goals so they can be the best version of themselves. Today, her main passion is making an impact in the world of e-commerce and using her skills to improve the experience of customers everywhere. She believes that CRO is like a foundation that we lay to better the lives of others.


    Demi Karafillakis

    Demi is a CRO Analyst at ConversionAdvocates. With a background in Strategic Management and experience working at startups and in consultancy, she loves taking on challenges and working with entrepreneurial people. CRO gives her this opportunity, while also allowing her to combine her creative and analytical side. Outside of work, she loves traveling, watching sunsets, learning languages, and hanging out with friends and family.

  • Senior Frontend Developer

    Alex Argunov

    Alex is Senior Frontend Developer and Team Leader at Conversion Advocates! With over ten years of experience delivering exceptional digital experiences and a natural talent for team building and solution architecture, Alex has successfully launched multiple complex projects. With technical skills in React, TypeScript, NodeJS, and more, Alex consistently pushes the boundaries of delivering high-quality work.


    Nathan Raczynski

    Nathan is a CRO Analyst at ConversionAdvocates. With a passion for data and a background in UX/UI design he aims to create accessible and seamless experiences for everyone. Outside of work, Nathan enjoys disc golf, camping, and cooking.


    Elkhadragy Mahmoud

    Elkhadragy boasts over 4 years of professional experience in both front-end and back-end web development. His track record of successful development projects, as well as his wide array of skills, make him an important contributor to the ConversionAdvocates team. Elkhadragy has also studied civil engineering and worked as a civil engineer on many big projects in Egypt before pivoting his career to development. He enjoys spending his spare time playing football or the drums, but his favorite way to relax is with a peaceful trip to the sunny beach near his home.


    Valery Salko

    Valery is a CRO Analyst at Conversion Advocates. She is a powerful force in the workplace and uses her positive attitude and tireless energy to work hard and succeed. Valery is inspired daily by her hobbies and continuous desire to develop. In her free time, she likes to play video games and read self-studying literature.


    Ksenia Irisbieva

    Ksenia is a virtual assistant at Conversion Advocates. She is the one who is always there for us. She helps with office management duties, but can also chip in with a variety of analytical, HR and marketing responsibilities. Besides her job, she loves to travel with her family and dip into reading English magazines.


    Cade Dannels

    Cade is a CRO Analyst at Conversion Advocates. With passions in UX and data science, Cade loves looking at problems from difficult angles. He is dedicated to relentless learning and bringing positive energy to the work environment. Outside of work he loves being outside, playing sports, and watching movies.


    Dariia Oleshchenko

    Dariia is an innovative designer with an eye for detail and a knack for solving problems of each project she tackles. She enjoys seeing her designs come to life and change the behavioral habits of customers. She draws inspiration from anime, classic literature, and fantasy movies.


    Simon Girardin

    Simon’s personal mission is to inspire and teach people about CRO. He just can’t get enough of customer and market research as the insights he finds feed into his strategies. Process-oriented as he is, he built two comprehensive CRO training programs and jump started the CRO department at his former agency.


    Denis Sorokin

    Denis Sorokin is a Web Developer at Conversion Advocates. He's the youngest member of our team, but don't let his youthful exterior fool you! Denis has been programming competitively for 5 years now and is highly passionate about building awesome products that benefit not only clients but their customers as well. Denis is always open to communication, loves sharing ideas, and selflessly puts in a lot of effort into the success of the team.


    Dominika Czech

    Dominika is a CRO Manager with over eight years of experience in eCommerce. She is fascinated with human psychology. For her, CRO is not just about numbers; it's about understanding what makes audience buy. When she's not optimizing websites, she spends her free time exploring local waterfalls. In these moments spent in nature, she finds both inspiration and balance.


    Iryna Liebiedieva

    Iryna believes that the only way to do great work is to love what you do. In UX design she is fascinated by the combination of creativity, engineering, and psychology. Iryna knows for sure that a well-designed user experience helps build trust and guide users to take an action. It’s important for her to create products that someone can easily use and enjoy using them. In her free time, she likes reading, playing sports, and learning new things.

Get in touch & get started Today on your 90-day CRO journey

Here’s what you will get from your free CRO strategy call:
  • 90 Day Growth Plan focused on increasing revenue
  • Calculate projected ROI from improving your CRO
  • Walk through our proven CRO process and how to apply it in your business
  • Learn what specific research methods will drive insights and winning tests
  • Gain an understanding of testing velocity for your site
  • Get answers to any questions around CRO or growth strategy

Book your CRO strategy call


Step 1 of 4