01
Direct access to the designers
No filter, no salesperson.
At Junca, you work directly with the people who design your website. It's faster, smoother, and your ideas don't get lost along the way.
We build premium web experiences for the world's most ambitious tech companies.
OUR CLIENTS
Y Combinator startups, industrial companies, US hardware manufacturers: they build technologies that reshape their industry. We build the websites that make them visible.
Your technology has outgrown your brand and your website. We close the gap: identity, site and 3D, by one team.
Our services
Websites, 3D, brand, fundraising and search, from one team.
Each category has its own page: the services inside it, the projects that prove them and how we work.
Service 01
Websites
Your technology has matured. Your website still explains the first prototype. We design and build the one that catches up.
Service 02
3D & Motion
Your product sits in a housing, flies above the clouds or works at the scale of a city. We model it and show how it works.
Service 04
Fundraising
The round opens in three months. The deck was made the night before the last one.
Service 05
SEO & GEO
Your buyers search Google, then ask an AI. Both should find you, and describe you correctly.
Selected work
They trusted us withtheir image.
Extraordinary products, undersold by their websites: that's the gap we close for tech and deeptech companies. End to end: art direction, custom development, real-time 3D, content.
DeepTechCorporate website 01 / 05 · New York, United StatesBotBlox: Moving data where ethernet was never meant to run
ClimateShowcase website 02 / 05 · London, United KingdomKestrix: Mapping heat loss at urban scale
Kestrix: making thermal data readable to accelerate building retrofit
DeepTechShowcase website 03 / 05 · Paris, FranceHylight: Deeptech startup in aerial inspection
Hylight: an aerial inspection technology driven by design.
StudioShowcase website, portfolio 04 / 05 · Nantes, FranceArtefact: Visual exploration studio
Building the showcase website for Artefact, a space for their creative work
DeepTechShowcase website 05 / 05 · Paris, FranceSkipper NDT: Automating energy infrastructure maintenance
Great technology, undersold by its website.That's what founders tell us, every week.
( What we fix )
Founders and researchers build extraordinary technology, and rarely have the eye, or the time, for the design it deserves.
We give complex technology the clarity it needs: sleek, premium websites that present hard things simply, so investors, clients and talent get it in seconds. A small team, and a direct line to the people who design and build.
Why work with us
Why work with us?
At Junca, we believe a great website starts with a great relationship. No complex process, no middlemen. Just a dedicated, responsive team and a smooth workflow to move your projects forward, fast and well.
02
A clear and fast process
Everything centralized, everything simple.
We give you access to the Junca client portal to follow every step: schedule, copy reviews, approvals, documents and deliverables. Clear, efficient, collaborative.
03
No-code sites autonomous clients
No developer needed to change a line of text.
Your team updates the site on its own, in the Framer CMS or in Sanity, with zero technical dependency.
04
A team that's ultra responsive
Small team, big availability.
We're an independent, human-sized studio, and genuinely available. Got a question? An idea to test? We're here, fast, no delays.
Industries
Every tech sector convinces a different way.
Deeptech, climate, industry 4.0, AI, robotics, B2B SaaS: we shape each site around what your field has to prove, and to whom.
The page opens on the physics, not on the problem it solves. Investors and buyers leave before they know what you do.
Sensors, models and protocols stack up. The visitor drowns before the impact lands.
Models, agents, copilots: the words pile up, and the visitor still cannot picture what the product does.
Standards, tolerances and part numbers come first. The buyer stalls before the value is clear.
Payloads, axes and components everywhere. The visitor stalls before the value is clear.
The same layout, gradient, and stock illustration as every competitor. Nothing signals you're the category leader.
Deeptech branding: how to build an identity for invisible technology
9 min read
Your technology is years ahead and your brand looks like everyone else's. A method to build a deeptech identity from your mechanism, a worked example and a one-minute checklist.
Startup website after a seed round: what to change before Series A
6 min read
The median gap between seed and Series A is now 616 days. The site that helped you raise was written for investors; here is what to change so it sells, hires and prepares the next round.
How to show a hardware product on your website when photos fall short
7 min read
A photo shows the outside of your hardware. Buyers need the inside, the motion and the proof: five visuals that show them, one honesty rule for renders, and a realistic CAD-to-web timeline.
The 12 best deeptech websites in 2026, and why they work
9 min read
Twelve deeptech sites that won Awwwards Site of the Day, from Vast to Breakthrough Energy, and the four design moves that put them there.
How to explain complex technology on a website (without dumbing it down)
4 min read
Jargon repels even when you define it, and visitors read 25% of your words. The layered-narrative method we use to make deeptech legible, from Hylight to Kestrix.
Astro vs Next.js in 2026: which one should you choose for your website?
11 min read
Islands architecture, 66% real-world Core Web Vitals pass rates, shader-level control with Three.js and TSL: the stack we use when a project outgrows no-code, and when we still say Framer.
The investor-ready website: what VCs actually look at before a Series A
5 min read
Your deck gets two minutes of attention. Your website gets the rest of the diligence. What VCs actually check on a startup website before a Series A, backed by Harvard and DocSend research.
Why deeptech startups need a premium website
5 min read
A generic website is no longer enough for a deeptech startup. Investor credibility, talent acquisition, market positioning: why web design is an underestimated strategic lever.
Client voices
Our clients speak for themselves.
Junca works with tech and deeptech companies: founders who build hard things and need a website that makes them obvious.
We keep part of our year for agencies and creative studios, the projects where we push craft, motion and real-time 3D further.
We think most tech websites look the same: templates, stock 3D, copy nobody reads. We believe in clarity, character and conversion.
Josh ElijahCEO, BotBlox Systems
Read the case study“This is absolutely what we wanted for our website. They could not have done a better job, my team and I are beyond thrilled. This will not be the last time we work with Jules and Studio Junca.”
Martin BockenCEO & co-founder, Hylight
Read the case study“The Junca team immediately understood our technical challenges and our need for clarity. The result is fluid, immersive, and perfectly aligned with our tech positioning.”
Luigi KassirCEO, Skipper NDT
Read the case study“The final website perfectly reflects Skipper NDT’s identity. Junca was able to adapt, understand our project in depth, and translate it accurately into the website.”
Lucy LyonsCEO, Kestrix
Read the case study“Working with Junca was simply delightful. The team is professional, visionary, and creative, and we are extremely satisfied with our output. Would 100% work with Jules and team again.”
Got a question? We answer it here.
Let's keep in touch
Get in touchWhat does Junca Studio do?
Junca Studio is a web, brand and 3D studio for tech and deep tech companies whose technology has matured faster than their brand and website. We close that gap with one team that does everything in-house: positioning and visual identity, website design, development in Framer or in custom code with Astro and Next.js, and real-time 3D built in Blender and WebGL. Clients include Hylight (Y Combinator S23), Kestrix, Skipper NDT and BotBlox.
How much does a website cost with Junca Studio?
Every project is priced on its scope, never from a package. As a guide, a website built in Framer typically ranges from $10,000 to $20,000. Projects that bring together a brand identity, a full website and custom 3D usually range from $20,000 to $50,000, and complete programs for a launch or a fundraise go further. If your budget is tight, we phase the work: the essentials first, then 3D and new pages. After a free first call, you get a detailed quote, line by line.
How long does it take to build a website with Junca Studio?
A marketing website usually takes 4 to 6 weeks once the brief is approved. Projects that add branding, 3D scenes or custom animation take 8 to 12 weeks. You follow every stage in the Junca client portal, with clear milestones, so you always know what comes next.
Can I update the website myself after launch?
Yes. On Framer, your team edits text, images and articles directly in the Framer CMS. On Astro or Next.js, we connect a headless CMS such as Sanity: you publish a page or an article and the site updates within minutes, without touching any code. We train your team at launch and stay available afterwards.
Which technology do you use: Framer, Astro or Next.js?
We pick the one that fits your project. Framer is ideal for marketing sites your team wants to edit visually and launch fast. Astro, usually paired with Sanity, suits sites with a lot of content that need very fast loading and 3D in the browser. Next.js suits products with accounts, dashboards or app features. All three produce fast pages that search engines and AI assistants can read, with no plugins to maintain like on WordPress.
What does Junca Studio offer besides web design?
Besides web design and UX, we offer four services that work together or on their own: development on Framer, Astro or Next.js; 3D and immersive experiences built with Blender and WebGL; branding and visual identity, from logo to brand guidelines and art direction; and SEO and AI search optimization, so your company shows up on Google and in answers from ChatGPT or Perplexity. Most clients combine two or three of them.
How does a project with Junca Studio work?
It starts with a free call to understand your product, your audience and your goals. We then work in the Junca client portal with clear milestones: strategy, art direction, UX and UI design, development, testing and launch. You review copy and designs there, approve each milestone and find every document and deliverable in one place. You talk directly to the people who design and build your site.
What makes Junca Studio different from other web design agencies?
Three things. An engineering background: we read the white papers and understand the hardware, data or AI behind your product before designing anything. A track record with technical companies, from Hylight (Y Combinator S23) to Kestrix, Skipper NDT and BotBlox. And 3D and WebGL produced by our own team with Blender, so complex products become tangible. You work directly with the people who design and build your site, with no account manager in between.
Where is Junca Studio based, and do you work with international clients?
Junca Studio is a French studio. We work remotely with tech companies in France, the United Kingdom and the United States, in English or French, from the first call to launch.