Clients
Some Big. Some Small. All Built on Trust.
From global brands to startups with big dreams, I've worked with people across countries, cultures, and industries.
SEO, content, link building, creative campaigns, and localization. Different projects, each with a story of its own.
One thing in common? Turning good ideas into something that works.
Different challenges. Different ideas. And always another story worth telling.
- 100+ Happy Clients
- 20+ Years of Ideas
- Big & Small Brands
- Across Borders & Industries
- 100% Positive Feedback
- Kriptomat
Results across different industries
See all case studies- Insurance12M+
organic sessions
seguroauto.org - HealthTop #3
nationwide
planodesaude.net - Finance5M+
organic leads
smartia.com.br - SaaS300%
year-over-year growth
Global SaaS clients
What clients say.
Guilherme is one of the best link builders I have ever worked with. His professionalism and expertise is unmatched. If you ever need help with links in Portuguese he is your guy! He is always available, and is completely transparent with progress on projects. I give him a 10/10 rating.
Guilherme is an excellent content and guest post creator. Very dedicated, with great communication and outstanding delivery. High-quality work delivered on time. We will definitely hire Guilherme for future projects. We highly recommend him to everyone!
Guilherme helped build a linkbuilding strategy for the project, placing great relevant links. All the work was completed in a short time. I would like to note the individual approach to the tasks and flexibility in solutions. I definitely recommend Guilherme as a contractor.
Want to see more?
Check out reviews from global brands on my Upwork profile.
Reviews from clients on Upwork.