Generated +$50M for +73 E-com brands & Info Products in 12 countries

Step 1: Your performance review is scheduled!

IMPORTANT: Watch this 1-minute video now.

Step 2: Learn how our process & framework works.

Watch a complete walkthrough of how we help you scale through paid ads. Afterwards you will know exactly how we work and operate.

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‍case studies

E-commerce

200% in revenue

Learn how we collaborate like an in- house marketing team

Learn how we increased an E-commerce client’s revenue by 64%.

Learn how we decreased the CPA for an online course by 21%.

Learn how we’ve been scaling E-commerce & Info-Product businesses for the past 4 years.

Watch Full Case Study

Sweden

E-commerce

€42.000 in ad spend

Learn how we generated +€417.584 through Google Ads in 3 months.

Learn how we scaled the ad spend by €42.000 compared to last year.

Learn how we inject relevant keywords into Google Shopping feeds.

Get the exact strategy we used and implement it into your own business.

Watch Full Case Study

Sweden

E-commerce

96% in revenue

Learn how we grew a Swedish E-commerce store by 96% in 3 months.

Learn how we managed the ad account on a daily basis.

See which marketing channels we used to scale aggressively.

Get the exact strategy we used and implement it into your own business.

Watch Full Case Study

Norway

E-commerce

733% in revenue

733% revenue growth for Norwegian E-commerce store in 14 month.

Learn the exact market research & customer analysis that allowed us to scale.

See how we used Google Ads as our primary advertising platform.

Learn how we make omni-channel marketing strategies.

Watch Full Case Study

Denmark

E-commerce

104% in revenue

How we achieved 104% revenue growth for Soo Sleep in 18 months.

Learn how we took a brand that couldn’t be scaled and doubled it’s revenue in just 18 months.

Learn how we established a feedback loop for content creation.

Learn how we've been scaling E-commerce & Info-Product businesses for the past 4 years.

Watch Full Case Study

Denmark

E-commerce

99% in profit

From unprofitable to 99% profitable growth in 6 months.

Learn how we took an unprofitable E-commerce business and turned it around in 6 months.

Learn how we added +2.000.000 DKK in profit without spending more on ads.

Learn how we saw the exact profit the ads generated.

Watch Full Case Study

Denmark

E-commerce

71% in ROAS

Growing DogCoach in Denmark and Germany by +123%

Improved their ROAS in Germany from 3.54x to 6.08x in the first 6 months.

Added profit tracking (POAS) to not solely rely on ROAS.

After 2 years collaboration we are now advertising in +10 markets.

Denmark

E-commerce

199% in revenue

+2.5 years of collaboration with Danish fashion store Curved

Improved their ROAS by 63%. From 3.93x to 6.44x

Profitably scaled ad spend by 520% in 12 months.

Achieved a 199% growth in 2.5 years.

Norway

E-commerce

600.000 in revenue

Adding +600.000 NOK in revenue for Fotobaren

Build their advertising up from 0 to a ROI of 649%.

Omni-channel marketing through Meta, Google and Email Marketing Automation.

Acted as their in-house marketing team for +2 years.

Q4 - BFCM Training

Learn how we are going to make 6-7 figures in Q4 2025 for our E-commerce brands.

How you can build the perfect strategy that balances profit and customer acquisition.

How to set the right KPI's allowing you to scale aggressively.

Discover which Email & SMS flows you need and how to create high converting landing pages specifically for Q4.

Watch Full Training

Training

The exact marketing strategy we use to scale our clients to +20k/month in profitable ad spend.

Learn why your E-commerce brand hits a ceiling around $5 - $20k in monthly ad spend.

Learn why the 3 common strategies to combat stagnation doesn't work in 2025.

Get the exact strategy we use to scale our clients past the 6 & 7-figure mark in 2025.

Watch Full Training

E-commerce

64% in revenue

The exact acquisition & retention strategy we use to increase our client's profitability by up to 80%

Learn how we increased an E-commerce client’s revenue by 64%.

Learn how we decreased the CPA for an online course by 21%.

Learn how we’ve been scaling E-commerce & Info-Product businesses for the past 4 years.

Watch Full Case Study

Sweden

E-commerce

€42.000 in ad spend

Learn how we generated +€417.584 through Google Ads in 3 months.

Learn how we scaled the ad spend by €42.000 compared to last year.

Learn how we inject relevant keywords into Google Shopping feeds.

Get the exact strategy we used and implement it into your own business.

Watch Full Case Study

Sweden

E-commerce

96% in revenue

Learn how we grew a Swedish E-commerce store by 96% in 3 months.

Learn how we managed the ad account on a daily basis.

See which marketing channels we used to scale aggressively.

Get the exact strategy we used and implement it into your own business.

Watch Full Case Study

Norway

E-commerce

733% in revenue

733% revenue growth for Norwegian E-commerce store in 14 month.

Learn the exact market research & customer analysis that allowed us to scale.

See how we used Google Ads as our primary advertising platform.

Learn how we make omni-channel marketing strategies.

Watch Full Case Study

Denmark

E-commerce

104% in revenue

How we achieved 104% revenue growth for Soo Sleep in 18 months.

Learn how we took a brand that couldn’t be scaled and doubled it’s revenue in just 18 months.

Learn how we established a feedback loop for content creation.

Learn how we've been scaling E-commerce & Info-Product businesses for the past 4 years.

Watch Full Case Study

Denmark

E-commerce

99% in profit

From unprofitable to 99% profitable growth in 6 months.

Learn how we took an unprofitable E-commerce business and turned it around in 6 months.

Learn how we added +2.000.000 DKK in profit without spending more on ads.

Learn how we saw the exact profit the ads generated.

Watch Full Case Study

Denmark

E-commerce

71% in ROAS

Growing DogCoach in Denmark and Germany by +123%

Improved their ROAS in Germany from 3.54x to 6.08x in the first 6 months.

Added profit tracking (POAS) to not solely rely on ROAS.

After 2 years collaboration we are now advertising in +10 markets.

Denmark

E-commerce

199% in revenue

+2.5 years of collaboration with Danish fashion store Curved

Improved their ROAS by 63%. From 3.93x to 6.44x

Profitably scaled ad spend by 520% in 12 months.

Achieved a 199% growth in 2.5 years.

Norway

E-commerce

600.000 in revenue

Adding +600.000 NOK in revenue for Fotobaren

Build their advertising up from 0 to a ROI of 649%.

Omni-channel marketing through Meta, Google and Email Marketing Automation.

Acted as their in-house marketing team for +2 years.

Our clients wants the best of the best

Hear what our customers say about their experience with us.

Trusted by:

Linn Radsted

Can only recommend Marcus from Complex Solution, super service minded, problem solver, creative and fast. Marcus is always available and always ready to try out new ideas. He provides weekly updates, constantly keeps an eye on conversions, ROAS, ad spend etc. We at Åberg Copenhagen look forward to a long and good collaboration, which we are very excited about so far.  Regards Needa Violaaurora CEO & founder Åberg Copenhagen

Needa from Åberg Copenhagen

We at DogCoach have had the pleasure of collaborating with Marcus & Complex Solution since 2022. During this period, DogCoach has both expanded into new markets and significantly grown the company in B2C sales. Unlike larger agencies, we experience a tremendous effort put into both understanding the brand and the company, as well as working proactively and committedly. Furthermore, Marcus always participates actively and is adept at considering the company as a whole. Here you get a comitted wingman who thinks independently and where reporting and data are done on a high level. Marcus & Team get my absolute highest recommendations.

Linn from DogCoach

Huge recommendation from here! Marcus has been managing our Facebook Ads for about 3 months now and has created impressive results throughout. We are running with a ROAS 13 on average and have made an additional revenue of 500.000kr. in the short time we have worked with him. Marcus is self-thinking and proactive and works insanely hard to create the best possible results for his clients!

Anton from Companyon

I highly recommend both Marcus and the team. We at Curved.dk have now been using them for over a year. We grow every single month, they are always ready to help and do a fantastic job. They are 100% honest and easy to talk to, so I can vouch for them at all times.  Thank you Marcus and team for the time so far, looking forward to many more months with you.

Lone from Curved

Have worked with Marcus for about a year, and it has been a very pleasant experience. Marcus always delivers on time and replies immediately. I have worked with different larger teams before, where I got a new account manager constantly, and with that, had to spend a lot of time troubleshooting. With Marcus it's nice to know that won't happen, and it saves me a lot of time. My best recommendations ⭐️⭐️⭐️⭐️⭐️

Ditte from Mondokaos

I am extremely impressed with the results. The company's communication and dedication to our campaign has been top-notch. Every week, they provide us with a video update explaining the progress and strategies being implemented to improve our results.  One of the things that I appreciate the most about Complex Solutions is their dedication to constantly improving our website to get better results with our Facebook-Ads. They have provided us with valuable feedback and suggestions on how to optimize our website for conversions, which has significantly increased our click-through rates.  Moreover, the team has been very receptive to our suggestions and ideas, and they have always been quick to implement any changes or adjustments that we have requested. This level of flexibility and willingness to listen to their clients' needs is what sets this Complex Solutions apart from others in the industry.  I highly recommend Complex Solutions for anyone looking to set up and manage their Facebook-Ads.

Maurice from Hello Floor

I had the pleasure of working with them for 3 months and in this short period of time they really exceeded all my expectations. Marcus knows what he talks about and all the communication went very smoothly. 10/10 Recommend

Benjamin from TBG

I have been working with Complex Solution for a year now, and I can confidently say it has been a fantastic experience. We have successfully built numerous brands, and the ROAS has been outstanding. I highly recommend them!

Henry from Ecoawear

We have been working with Marcus for 6 months now and are really impressed with the results he creates and the way he is able to challenge our business strategically. Marcus has been a very important resource in our expansion to other countries in Europe, where he has taken responsibility for opening and growing the different markets. Despite the fact that we work with complex products with many restrictions, we have experienced throughout the collaboration that Marcus adapts and finds the right solutions that benefit our business. We are especially pleased with the execution power we experience. A big recommendation from here!

Mads from Matetea

We had the pleasure of working with Mads and Marcus from Complex Solutions to create a beautiful webshop for our Forest Tea brand, and the experience was nothing short of outstanding. Their dedication, expertise, and commitment to our project were truly remarkable.

Brian from Forest Tea

Marcus and the rest of the team are without a doubt among the brightest minds in the industry.
We have turned to the team several times when we needed knowledge about paid advertising, digital presence and E-commerce.
A huge recommendation!

Jeppe from Advancelab

Marcus and Mads have been a pleasure to work with over the past 3 months. Our small webshop got our Facebook and Instagram ads optimized and structured - and got a much better return on investment! The thorough Monday updates helped give us a thorough insight into things and created a sense of security in the process.

Andreas from Eclipsis

Free Performance Analysis

Our clients

80k

followers

Scandinavia's fastest growing boheme fashion brand.

314k

followers

#1 Worldwide brand for toe spacers & foot health education.

80k

followers

DogCoach is Europe's #1 Dog Owner Clothing Brand

followers

Scandinavia's fastest growing soil & plant webshop.

4.9k

followers

#1 Online tech school with over 21.000 students worldwide, focusing on diversity.

43k

followers

The Beautiful Game is one of Netherlands' fastest growing football webshop & community.

18.9k

followers

Eclat is Netherlands #1 Webshop for Collagen supplements.

10k

followers

Deplay is Netherlands #1 fastest growing tablet for kids.

28.2k

followers

Louise Bruun is known for the biggest education platform in Denmark teaching about anti inflammatory foods.

20k

followers

Short Form Society has helped over 1.000 people in Europe start their own business online.

20k

followers

Swedens #1 online course for starting an E-commerce business.

9.2k

followers

Denmarks fastest growing fashion brand for plus sized women.

7.2k

followers

#1 Rental Service in Norway for photobooths.

168k

followers

Hampus is the #1 fitness coach in Sweden with over +160.000 followers.

77k

followers

KM Community is the #1 community in Netherlands, helping people start their own E-commerce business.

96k

followers

The Airbnb business of glamping experiences in Europe.

80k

followers

Scandinavia's fastest growing boheme fashion brand.

314k

followers

#1 Worldwide brand for toe spacers & foot health education.

80k

followers

DogCoach is Europe's #1 Dog Owner Clothing Brand

followers

Scandinavia's fastest growing soil & plant webshop.

4.9k

followers

#1 Online tech school with over 21.000 students worldwide, focusing on diversity.

43k

followers

The Beautiful Game is one of Netherlands' fastest growing football webshop & community.

18.9k

followers

Eclat is Netherlands #1 Webshop for Collagen supplements.

10k

followers

Deplay is Netherlands #1 fastest growing tablet for kids.

28.2k

followers

Louise Bruun is known for the biggest education platform in Denmark teaching about anti inflammatory foods.

20k

followers

Short Form Society has helped over 1.000 people in Europe start their own business online.

20k

followers

Swedens #1 online course for starting an E-commerce business.

7.2k

followers

#1 Rental Service in Norway for photobooths.

9.2k

followers

Denmarks fastest growing fashion brand for plus sized women.

77k

followers

KM Community is the #1 community in Netherlands, helping people start their own E-commerce business.

96k

followers

The Airbnb business of glamping experiences in Europe.

Step 1: Your performance review is scheduled!

Step 2: Learn how our process & framework works.

Take a look at our other ‍case studies

Learn how we collaborate like an in- house marketing team

Learn how we generated +€417.584 through Google Ads in 3 months.

Learn how we grew a Swedish E-commerce store by 96% in 3 months.

733% revenue growth for Norwegian E-commerce store in 14 month.

How we achieved 104% revenue growth for Soo Sleep in 18 months.

From unprofitable to 99% profitable growth in 6 months.

Growing DogCoach in Denmark and Germany by +123%

+2.5 years of collaboration with Danish fashion store Curved

Adding +600.000 NOK in revenue for Fotobaren

Learn how we are going to make 6-7 figures in Q4 2025 for our E-commerce brands.

The exact marketing strategy we use to scale our clients to +20k/month in profitable ad spend.

The exact acquisition & retention strategy we use to increase our client's profitability by up to 80%

Learn how we generated +€417.584 through Google Ads in 3 months.

Learn how we grew a Swedish E-commerce store by 96% in 3 months.

733% revenue growth for Norwegian E-commerce store in 14 month.

How we achieved 104% revenue growth for Soo Sleep in 18 months.

From unprofitable to 99% profitable growth in 6 months.

Growing DogCoach in Denmark and Germany by +123%

+2.5 years of collaboration with Danish fashion store Curved

Adding +600.000 NOK in revenue for Fotobaren

Our clients wants the best of the best

Our clients

Take a look at our other
‍case studies