Optimization success is
measured by results

Having been in this business since 2015, we've gathered a long list of clients & client results to showcase. Over the years, we've received the expert-vetted status by Upwork, which means that we are certified to be a top 1% service provider in the world's largest work network for independent professionals. This status is earned after consistently generating outstanding client feedback and going through a rigorous vetting process for skills & experience. 

On top of this, we have been a Shopify certified expert since 2016, recognized in both the marketing & store setup categories. Shopify has even used our work as an internal benchmark to vet other agencies.

We also hold multiple certifications by the highest CRO learning authority, CXL institute, to be confirmed as top professionals in our field.

cro gurus team member samuel larsen
This is WHY we do WHAT we do

What our clients are saying

Oliver Nelson


Jason Chen


Ibrahim Rehman


Carl & Ewelina Agustin


Chris LaBarbera


Edwin Chung


Jester Schilder


Tal Mor


Rakan Gammoh
July 7, 2023
Extremely professional and knowledgeable in his field
I would highly recommend working with Samuel as he is extremely professional and knowledgeable in his field. Although I haven't yet implemented his suggestions, he displayed great enthusiasm and openness to receiving feedback on the results after implementing his recommendations. I have high hopes that everything will turn out excellently"
Upwork Client
Baby and Toddler Sleepwear Brand
Baby and Toddler Sleepwear Brand
May 22, 2023
United States of America
High Quality Work
Samuel and team did a thorough audit. He clearly understood our product collection and our niche. I am happy with the suggestions and the rationale, and the prioritized list of improvements to make. We are moving forward on implementation with his team and I already referred a friend for the team's high quality work so far.
Benny Shen
Founder & CEO
October 4, 2022
British Columbia, Canada
I feel confident in his team
It has been a great pleasure working with Samuel and his team. He responded to my concerns each time promptly and made sure that I feel confident in his team. As for the conversion rate of our website, we will continue monitor it and see if it will increase overtime.
Oliver Nelson
September 21, 2022
London, England
Very flexible partnership commitment
CRO Gurus helped us build our website from scratch to a heavily optimized website for usability (something that we didn't pay attention to before) to maximize conversion rate and transaction. They also helped us customize website functionality to better customer experience. One of the things I like most about working with CRO Gurus is their project flexibility. You are not tied to a long-term contract which allows eCommerce merchants to test the waters before committing for the long-term.
Jack Oswald
Chief Executive Officer
July 25, 2022
United Kingdom
Extremely skilled and knowledgeable in CRO
Samuel and his team are extremely skilled and knowledgable in CRO. Over the course of 6 months working together, they made some drastic improvements to how we communicate our offer to customers and the buyer journey. They have placed us in a great position to continue growth, I would highly recommend their Conversion Rate Optimisation services. Respond to this feedback
Nicola Gomme
June 2, 2022
United Kingdom
Great communication
Great communication throughout and identified some important improvements, looking forward to seeing the results improve over the next few months. Thank you!
Upwork Client
Founding Director
May 4, 2022
Utrecht, Netherlands
Phenomenal growth rate
We hired CRO Gurus to improve customer conversion and make the website more user friendly for the customers. The project grew at a phenomenal rate. We were very happy with the outcome. The communication was seamless.
Upwork Client
Founder & CEO
April 20, 2022
Maarssen, Netherlands
Very helpful and approachable
It has been an honour and pleasure to work with Samuel and his team. He is very helpful and approachable and is always available to jump in. I would highly recommend working with him!
Harald Nuss
April 15, 2022
Strong results!
Strong results. Structured. Fast. Professional. Fantastic.
Upwork Client
Digital Advertising Agency
April 6, 2022
Vancouver, British Columbia
I always got what was promised
I always got what was promised. They have very solid processes in creating these services while still producing custom & valuable work. What I find most impressive about CRO Gurus is their consistency and deep knowledge of e-commerce CRO really stood out to us. Usually, small companies tend to be a bit unstructured but I don’t think I’ve ever seen a company that cared so much about the details and had honed their reports to this degree.
Eric Held
Digital Marketing Manager
April 5, 2022
New Zealand
Very helpful!
It was very helpful to have fresh eyes and perspective on our project. Thank you!
Jeremy Salem
Chief Executive Officer
April 5, 2022
United States
Samuel and his team did a great job
We needed some CRO help, and Samuel and his team did a great job. They walked us through everything, did split-testing, and provided data and feedback. Thank you!
Paris Stevens
Head of Marketing
March 9, 2022
United Kingdom
Delivered everything as promised, on time!
Samuel and his team were great to work with - they delivered everything as promised, on time!
Upwork Client
December 9, 2021
Los Angeles, California
Suggestions are spot-on
Samuel and his team performed and audit of our site. He was quick to answer any questions and his suggestions were spot on. Very professional and delivered in a timely manner. Would definitely recommend.
Upwork Client
One Brush
November 12, 2021
True Expert on CRO
If you are looking for a true expert on CRO, look no further. Samuel is your guy. He helped me a ton with my e-commerce project and I will hire him again.
Upwork Client
Founder & CEO
November 3, 2021
Fitzrovia, London
All work was completed on time
The report was very detailed, it concerned the whole website. It’s going to take time to fully implement all the recommendations, but I am very confident we will see a better performance afterwards. Samuel was great, all work completed on time, and we already working on another contract. Highly recommended if you are serious about improving your website performance.
Upwork Client
October 26, 2021
Highly Recommended
HIGHLY RECOMMENDED to anyone who is looking for a REAL CRO service. Samuel and team are very professional, highly skilled and a pleasure to work with.
Upwork Client
Project Based
July 16, 2021
United Kingdom
CRO Expert for Ecommerce Sales Funnel
Top freelancer. Very good communication and seriously good skills.
Upwork Client
Project Based
July 5, 2021
Excellent job!
Samuel did an excellent job at identifying issues with our website that were affecting our customer’s experience and ultimately conversions. We lookforward to seeing how the changes improve our business.
Drew Downie
May 26, 2021
Santa Monica, USA
No Brainer to Hire
This was a great experience. Samuel is extremely detail-oriented and knows conversion rate optimization in and out. As a busy founder, I don’t always have the time to project manage a freelancer and Samuel not only stuck to his word but delivered an extremely detailed audit that made us feel confident in hiring his team to implement the recommendations after the audit. In comparison to other freelancers I interviewed, Samuel was the only one that specialized in conversion which made him a no brainer to hire him for our needs.
Gina LaBarbera
Online Boutique
October 19, 2020
Roswell, USA
Top-notch audits
Samuel and team are experts in their field. The audits are top-notch and the technical and business consulting is very professional.
Jason Chen
Founder & COE
October 3, 2020
Melbourne, Australia
CRO Gurus will treat your business as their business
It’s been about a year since I started working with CRO Gurus and there has been a lot of things that we’ve done on the website and other factors that led the business to growing up to 6-7x in revenue. Working with Samuel and his team has been quite very easy and valuable for my business. I’d say that you can trust CRO Gurus looking after what you need because they will treat your business as their business. They are not going to overcharge you of something that is not going to help you.
Lenora Quarto
Chief Executive Officer
July 21, 2020
United Kingdom
Full Website Audit
CRO Gurus provided exceptional help and professionalism for my website. They did a full audit of my website and made several changes that have helped to optimize my customer experience, such as website flow, cart optimization, improving consistency, checking UX on several browsers and much more. They also helped me set up email templates for new customers, returning customers, and abandoned carts that are tailored to my customer base. I will definitely be working with them again in the future. Thank you!
Caspar Szulc
Chief Executive Officer
July 14, 2020
New York, United States
Samuel is focused and efficient
Samuel is not only articulate, detailed, and organized – he is especially good at what he does. He is focused and efficient and provides excellent recommendations. He was easy to work with and adapted to our schedule despite significant differences in location. I highly recommend Samuel.
Hunter Chandra
Chief Executive Officer
June 22, 2020
Chicago, Illinois
Great at communication, strategy, and actual implementation
Samuel and his team are excellent. He is great at communication, strategy, and actual implementation. I recommend him whether you are just getting started, or have a fully developed business but are looking to refine it even further.
May 15, 2020
Deep, insightful, and precise conversion rate optimization report
Exceptionally clear, detailed and insightful Conversion Rate Optimisation report. Very patient with my questions. Samuel is methodical and diligent in execution with well-reasoned rationales behind his recommendations. He was also good and at managing expectations. The report I received was deep, insightful and precise. In a couple of months of sustained traffic, I will likely rehire Samuel to perform a second audit, so that I can iteratively improve site performance. Highly recommended.
Jester Schilder
Chief Executive Officer
October 1, 2019
Rotterdam, Netherlands
Has a lot of good ideas on how to improve my operation
I’ve worked with Samuel before and I decided to hire him again because I was really pleased with his work. I had a great experience again, he understands the business side of how to sell online and had a lot of good ideas on how to improve my operation.
Upwork Client
Project Based
September 1, 2019
Conversion Optimization Assessment
Samuel is very professional and knowledgeable. His reports were always very helpful and I would hire him again!
Andrew NehauI
Chief Executive Officer
May 1, 2019
Stockholm, Sweden
Landing Page Improvements
The work you have done for us is professional, concise and theoretic and is a good lead to improving our landing pages and hopefully conversions.
Upwork Client
Project Based
November 1, 2018
E-commerce Conversion Funnel
Very client-focused. A pleasure to work with.
Upwork Client
Project based
November 1, 2018
Designed a higher converting download page and strategy
Wow. Just WoW! Samuel ‘s ability to translate my complex structure into a great design and strategy is awesome. I’m made up! Thanks Samuel. More work to come.
Kamil Kluziak
Google Adwords For IT and SaaS
September 19, 2018
Warsaw, Poland
His SEO strategies are very sound!
Samuel has been helping us in generating an SEO strategy for our consulting business. The goal of the project was to generate interested, leads through organic search. We basically wanted to have our landing pages rank well enough on Google so that these leads find us when they are googling our services. We have been implementing his SEO strategy for 5 months now, in order to improve our domain reputation with Google and now we find that we rank pretty well for most things we are selling. Wholeheartedly recommend to use him for ongoing SEO as his strategies are very sound and he doesn’t just generate a plan for getting a ton of traffic that don’t buy but always seeks to generate the right kind of traffic as well.
Anahata GraceIand
Chief Executive Officer
September 3, 2018
United States
More than capable for most jobs
Samuel is easy going and wonderful to work with. He doesn’t get thrown by chaos or changes and is able to stay well organized finishing his work well with little need for super changes. He is more than capable for most jobs. We were very happy working with him.
Upwork Client
Project Based
August 17, 2018
Experienced AB Testing Consultant
I have received a great report on conversions with suggestions on time!
Upwork Client
Project Based
August 9, 2018
Conversion Rate Optimisation (CRO) Consultation
Samuel gave us some great tips for an hour’s call. Lots of changes that resulted in higher conversion. Thanks and will be using again!
Upwork Client
Project based
August 1, 2018
Conversion rate optimization (CRO) specialist
Samuel did a great job to help me redesign my website and improve my customer conversion rate.
Upwork Client
Project Based
August 1, 2018
Shopify Conversion
Hired for conversion audit. Did a fantastic job – exceeded expectations in both quality and speed.
Upwork Client
Project based
July 21, 2018
Shopify Store Design
He is extremely knowledgeable when it comes to all the little things involved with improving e-commerce sales. We just had an hour, but I got value bombed for 60 minutes straight. now I have a list of eight concrete to dramatically improve my stores user experience and sales. As soon as I have done these changes we will definitely be working together again.
Upwork Client
Project Based
July 6, 2018
Shopify Site Revamp
Samuel is an absolute expert on all things Shopify. His work is of the highest quality and he is very patient in explaining your options. Very educational, I enjoyed working with Samuel and would not hesitate to recommend him to anybody. One of the best people I have ever hired on Upwork.
Upwork Client
Project Based
June 29, 2018
Knows what he is talking about
Samuel is a highly capable e-commerce expert who knows what he is talking about. He is very detailed and methodical in his analysis and his recommendations are both easy to understand and practical. I would have no hesitation to use Samuel in our future e-com projects. One of the best freelancer we have ever hired.
Upwork Client
Project based
June 14, 2018
Shopify modification
Fast, good communication, very happy with the work!
Upwork Client
Project based
May 29, 2018
CRO expert (mainly for Shopify)
Wonderful, he delivered on entire scope of work!
Upwork Client
Project based
April 20, 2018
CRO And Google Tag Manager Expert
Great hire. Will recommend!
Mikko Laine
Project based
March 29, 2018
Helsinki, Finland
Search Engine Optimization Expert helping businesses get traffic and leads from Google
Samuel hoitaa tonttinsa aina vastuullisesti ja on luotettava ja rehellinen. Käytännössä mestari kaikessa mitä tekee.
Gottfried Debove
Chief Executive Officer
March 20, 2018
Hong Kong
Shopify Store Design
We selected Samuel Larsen to build our new Bergstop online shop and have been very satisfied by his design and services. He explained in detail the options and consequences and had the patience to go through changes which came up in the process. We still go back to him for mayor changes and regular maintenance, and are very happy about the good collaboration.

So, are you ready to get the most out of your store?

While I’d like to think we can deliver fantastic work for everyone, you’ll benefit the most out of the engagement if:

1. You let your business goals and metrics dictate design.
2. You appreciate direct and honest communication (even if it hurts sometimes).
3. You aren’t interested in micro-managing and babysitting.

If you’re looking for someone to like this, then we probably will work well together.If you see a possible fit, simply apply to work with us and we’ll discuss the details of your project.
people working illustration