# Sumsar Studio > Sumsar Studio is the independent UX/UI design and Webflow practice of Rasmus Jeppsen, based in Copenhagen, Denmark. The studio delivers strategic UX/UI design, brand identity and Webflow development for startups, scale-ups and established brands. ## Key facts - Founder: Rasmus Jeppsen, UX/UI Designer and Webflow Developer - About the founder: Rasmus Jeppsen is an independent UX/UI designer and Webflow developer based in Copenhagen, Denmark, with more than 10 years of design experience and a Master's degree in Digital Design. - Based in: Copenhagen, Denmark - Legal entity: Sumsar Design Studio ApS (CVR 44086433) - Works with clients in: Denmark, Europe - Languages: Danish, English - Credentials: Master's degree in Digital Design, Webflow Certified Partner - Client testimonials on the website: 37 - Contact: rasmus@sumsar.dk, +45 28 60 08 98 ## Services - UX/UI Design: User experience and user interface design for websites, web apps and digital products. - Webflow Development: Design-to-Webflow builds, CMS setup, interactions and ongoing Webflow support. - Brand Identity: Visual identity, logo and brand systems for startups and established companies. - Web & App Design: End-to-end design of marketing sites, web apps and product interfaces. ## Expertise UX design, UI design, Webflow development, Webflow CMS, Brand identity, Design systems, Conversion rate optimisation, Figma, Web design, Product design, No-code development ## Main pages - [Home](https://www.sumsar.dk/): Your strategic UX/UI design and Webflow partner. Services, selected work, about the studio and client testimonials. - [Work](https://www.sumsar.dk/work): All case studies. - [FAQ](https://www.sumsar.dk/faq): Pricing, timelines, process, platforms and how collaboration works. - [Handelsbetingelser](https://www.sumsar.dk/handelsbetingelser): Terms of trade (in Danish). - [Terms and conditions](https://www.sumsar.dk/terms-and-conditions): Terms and conditions. ## Case studies - [Nextway](https://www.sumsar.dk/project/nextway) (Webflow) (live site: https://nextway.software/) - [ReData](https://www.sumsar.dk/project/redata) (UX/UI Design): UX/UI Design of ReData. I have been leading the design process of the ReData app, web app as well as landing page all the way from the sketching and prototyping phase to designing the interfaces pixel by pixel. This was a team project, but… (live site: http://www.redata.dk) - [Electricity Maps](https://www.sumsar.dk/project/electricity-maps) (UX/UI Design / Webflow; deliverables: Webflow, UX/UI Design): Electricity Maps presents map visualizations that show the carbon-intensity of electricity production and consumption worldwide. Our mission is to drive tangible reductions in carbon emissions through accessible and transparent insights. (live site: https://ww2.electricitymaps.com/) - [Hybird Energy](https://www.sumsar.dk/project/hybird-energy) (UX/UI Design) (live site: https://hybird.energy/) - [PL & Partners](https://www.sumsar.dk/project/pl-partners) (UX/UI Design / Webflow) (live site: https://pl-partners.dk/) - [HØJSKOLENDK](https://www.sumsar.dk/project/hojskolendk) (Branding & Webdesign) (live site: https://www.hojskolendk.dk/) - [Outlay](https://www.sumsar.dk/project/outlay) (UX/UI Design; deliverables: Complete UX/UI design of the app, Landing page design): Simple expense management with Outlay. I have been leading the design process of the Outlay iOS/Android app, web app as well as landing page all the way from the sketching and prototyping phase to designing the interfaces pixel by pixel.… (live site: https://apps.apple.com/dk/app/outlay/id641129650) - [Aiways Denmark](https://www.sumsar.dk/project/aiways) (UX/UI Design): Landing page and car customizer for Aiways Denmark. As a modern manufacturer, Aiways’ goal is to build electric cars that are enjoyable to drive, easy to operate and affordable. (live site: https://aiways.dk/products/u5) - [Plugin Heat Club](https://www.sumsar.dk/project/plugin) (UX/UI Design / Webflow): Webflow website and design for Plugin. Plugin offers sauna, breathwork, and events, all aimed at helping you achieve inner peace and channel your energy into what truly matters in life. (live site: https://www.pluginheatclub.com/) - [Creunmo](https://www.sumsar.dk/project/creunmo) (UX/UI Design / Webflow): Creunmo. Complete rebrand for Creunmo. New visual identity, website and brand universe. (live site: https://www.creunmo.com/) - [Energy Market Partners](https://www.sumsar.dk/project/energy-market-partners) (UX/UI Design / Webflow) (live site: https://www.energymarketpartners.com/) - [Asento](https://www.sumsar.dk/project/asento) (UX/UI Design) (live site: https://asento.dk/) - [Geowiz](https://www.sumsar.dk/project/geowiz) (UX/UI Redesign / Rebranding; deliverables: Redesign of app, Branding, UX/UI Design): Redesign and rebranding of Geowiz . I have been leading the design process of the redesign and rebranding of the Geowiz product from the sketching and prototyping phase to designing the interface pixel by pixel. (live site: https://app.geowiz.tech/demo) - [WoodUpp](https://www.sumsar.dk/project/woodupp) (UX/UI Design): Complete webshop redesign for WoodUpp. WoodUpp is a renowned brand known for its exceptional Nordic designs and high-quality interior panels. Now operating in 15+ countries, WoodUpp and with a commitment to excellence and customer… (live site: http://www.woodupp.com) - [Spejl Blank](https://www.sumsar.dk/project/spejl-blank) (UX/UI Design; deliverables: UX/UI Design, Wireframes, User research, CRO): On a mission to disrupt the window cleaning industry. In collaboration with WeCode, I have been leading the design process of the launch of Spejl Blank’s new subscription product, all the way from the sketching and prototyping phase to… (live site: http://www.spejlblank.dk) - [Leagues.gg](https://www.sumsar.dk/project/leaguesgg) (UX/UI Design; deliverables: Radical UX/UI redesign and rethinking of their old interface, Continous design of new features as the platform expands, Rebranding with an included style guide): UX/UI redesign and rebranding of the biggest esport tournament organizer in Denmark, leading to a pre-seed investment by Accelerate. In June 2020 Leagues.gg reached out to me, as they wanted to build an entirely new platform with a focus… (live site: https://leagues.gg/) - [CO2 signal](https://www.sumsar.dk/project/co2-signal) (UX/UI Design / Webflow; deliverables: UX/UI Design, Webflow): In addition to Electricity Maps' paid API, we wanted to create a subproduct of the API that are free for individual users and developers to use. (live site: https://www.co2signal.com/) - [Socialcode](https://www.sumsar.dk/project/socialcode) (UX/UI Design) (live site: https://socialcode.dk/) - [Spektr](https://www.sumsar.dk/project/spektr) (Webflow) (live site: https://www.spektr.com/) - [WOCA Denmark®](https://www.sumsar.dk/project/woca-denmark) (UX/UI Design) (live site: https://wocadenmark.com/) ## Frequently asked questions ### What type of work do you take on? I collaborate with a wide range of clients, from early-stage startups to established brands and enterprise teams. Sumsar Studio takes on branding and web projects for companies in B2B, technology, recruitment, sports, media, AI, education, SaaS, health and sustainability. I also partner with agencies and in-house teams who need design or development support on a specific project. Most engagements combine several disciplines - strategy, identity, UX/UI and web development - rather than one isolated deliverable. ### How much do you charge for projects? Every Sumsar Studio project is quoted as a flat fee based on scope. What it costs depends on engagement length, complexity and deliverables. Standard projects combining design and development typically starts from 50,000 DKK and take 4-12 weeks to complete. Smaller pieces of work, such as a single landing page or a conversion-focused redesign of a single flow can be priced lower. I scope and quote every project after an initial conversation, so we agree on the budget before any work begins. ### How long does a project take? I value speed, direct access and focused collaboration in everything I do. Most Sumsar Studio projects run 4-12 weeks from kickoff to launch, including the strategy and structuring phase. A focused piece of work – e.g. a landing page, a UX review, a single flow – takes from a few days to a 1-2 weeks. Because I carry the project from strategy through design to build myself, no time is lost re-briefing anyone between phases. ### What does the process look like? Every Sumsar Studio project opens with a scoping conversation about goals, audience and what success looks like commercially. I then design the full site in Figma - set up close to one-to-one with the final product, so you can click through it before anything is built - and record video walkthroughs explaining the reasoning behind each decision. Once you approve the design, I build it, structure the CMS, and hand over a site your team can run themselves. ### What results have clients seen? Great design should move the needle. That’s the standard I set for every project. Spektr had raised €5M to make complex compliance processes simple and automated. After Sumsar Studio designed and built their new website, they closed a $20M Series A. Spejl Blank's conversion rate increased +8% after I redesigned their booking flow and landing page, with online booking growing to more than 70% of total revenue. Leagues.gg raised a 1.5M DKK pre-seed and grew revenue more than 200% year on year following their platform redesign. ### Why work with an independent design partner instead of an agency? With Sumsar Studio you work directly with me - the person doing both the thinking and the work. No account manager, no junior handover, no briefing chain. Decisions get made inside the conversation rather than three days later. When a project genuinely needs more hands, I bring in specialists I have worked with before, rather than staffing it from whoever happens to be free that month. ### What does "strategic" actually mean in practice? It means the thinking happens before the design. Every Sumsar Studio project starts by defining who the site is for, what it has to achieve commercially, and how the content should be structured to get there - before I draw a single screen. In practice it often means challenging the brief: several clients have arrived asking for a full redesign and left with a smaller, sharper scope that solved the actual problem. ### Do you also do brand identity, or only websites? Both. Sumsar Studio designs brand identities - positioning, strategy, logo, typography, color systems and the guidelines that hold them together - alongside websites. Many clients start with a rebrand and continue straight into a new site, so I design the identity and the website as one system rather than two disconnected projects. ### What platforms do you design and build on? Sumsar Studio designs in Figma and builds primarily in Webflow, where I am a Certified Partner. I also build in Astro with Sanity CMS when a project calls for a more custom, developer-owned setup. Webflow is my default because it produces production-grade code, keeps the live site close to one-to-one with the design, and lets you update your own content without a developer. Where a project needs a different stack entirely, I deliver the design as a production-ready handover to your own developers or bring in a trusted specialist. ### Can you work with our in-house team? Yes - that is a large part of what Sumsar Studio does. I regularly embed with in-house product, marketing and development teams, co-designing in Figma, extending an existing design system, or owning one defined part of a larger programme. At Electricity Maps I worked alongside the product team for over a year, co-designing and prototyping both the website and the product interface. ### Do you work with clients outside Denmark? Sumsar Studio is based in Copenhagen, working with ambitious teams all around the world. Most of my clients are based in Denmark, but I regularly work with international companies too. E.g. Epilog, a Silicon Valley AI company, brought me in for an 8-month partnership covering messaging strategy, visual identity, creative direction, and website design. During that time, the company raised more than $2M through crowdfunding. Projects run asynchronously through Figma, recorded video walkthroughs, and shared documentation, with live calls when they genuinely add value, so time zones rarely get in the way. ### What happens after the site launches? Every Sumsar Studio site is handed over with the CMS structured so your own team can add pages and update content without a developer. After launch I usually continue on an ongoing partnership - scoped projects, an hourly rate, or a monthly retainer, whichever fits how you work. Staying flexible on that is one of the practical advantages of working with an independent partner rather than an agency. ### What is Sumsar Studio? Sumsar Studio is an independent design partner based in Copenhagen, Denmark, run by Rasmus Jeppsen. The studio works across strategy, brand identity, UX/UI and websites - starting with the positioning and structural decisions that shape a project, and staying involved through design and build. Clients range from early-stage startups to established brands and enterprise product teams across Denmark and worldwide. ### Who is Rasmus Jeppsen? Rasmus Jeppsen is an independent design partner based in Copenhagen, with more than 10 years of experience and a Master's degree in Digital Design. He works across digital strategy, brand identity, UX/UI and websites, and has led design for companies including Electricity Maps, WoodUpp, Spektr, Socialcode and Nextway. He founded Sumsar Studio to work directly with clients rather than through agency layers. ## Selected clients Anew Sleep, Retouch Skin Lab, Nextway, Epilog, Waitly, Asento, Spektr, Aiways, BarkDNA, Hybird Energy, Plugin Heat Club, Electricity Maps, PL & Partners, DYKON, WoodUpp, UMOVE, Somera, Collectia, WOCA Denmark, KHS, Itucation, Gaudium, Ackermann, Uhhmami, Creunmo, Somera ApS, WoodUpp A/S, ASENTO, WeCode A/S, DYKON A/S, Omnihost ApS, Babygarderoben.dk, Socialcode ApS, Yellow Safety ApS, SeMa Media, Frank Founders, HØJSKOLENDK, Holte Klinikken, SOUNDBOKS A/S & Plugin ApS, Obsidian Group, Prik & Streg, Sengesnedkeren, Energy Market Partners ApS, Champagnekaelderen.dk, PL & Partners A/S, Prezentor ApS, Weisio ApS, Nextway Software A/S, Dansk Minigolf Union, Absent Wall ApS, Itucation ApS, Kollo.io, Hybird Energy Systems ApS, Bo-we ApS, spektr ApS, Frederik Bülow ApS, Frank Agency Collective, TZTrade ApS ## Profiles - [LinkedIn](https://www.linkedin.com/in/rasmusjeppsen/) - [Dribbble](https://dribbble.com/rasmusjeppsen) - [Webflow Certified Partner](https://webflow.com/@sumsar-studio)