6 Embedded Product Design Agencies for SaaS Startups in 2027
Raising a round is the easy part compared to what comes next. Once money is in the bank, founders have maybe twelve to eighteen months to turn it into a product people actually use and the design work that gets you there rarely looks like one neat project. It’s a product decision one week, a pricing page the next and a pitch deck the week after that.
That’s why more startups are skipping the freelancer-by-freelancer approach and hiring an embedded design partner instead, one team that sticks around across product, web and brand work rather than handing off a single deliverable. The six agencies below all work with startups in some form, though they differ a lot in who they’re built for and how deep they go.
Best for Embedded Product Thinking Across the Whole Startup – Foundey
Foundey is a San Francisco-based embedded product design agency built for SaaS and AI startups. Instead of taking on a single deliverable, a lead designer and a supporting designer join the founder’s team directly, working inside the company’s own Slack so decisions move at the same speed as the rest of the team.
That embedded setup means Foundey gets involved in the actual design decisions, not just the output, because the team takes the time to understand the business, the product and the users before anything gets built. The agency’s scope covers product strategy, UX, web design, branding, graphic and motion work, plus a design QA pass to confirm the finished build matches what was designed.
That range matters most for founders who’d otherwise be stitching together a product designer, a brand freelancer and a web shop, since one team covering everything cuts out the coordination tax. Foundey tends to come in after a raise, when the job shifts from building something to proving it works, fixing conversion or activation problems and getting the company ready to face investors and customers at the same time.
The track record backs that focus: Foundey worked with CodeRabbit from its MVP through Series An on product, brand, website and launch video, took Double Nickel’s conversion rate from 14% to about 29%, doubled activation for InHouse and has stayed with Scotch for over two years across the same MVP-to-Series-A stretch. Across 170+ startups, including Y Combinator companies like Fuse AI, Clearly AI and Ruvo, the pattern holds: founders who want one accountable design team instead of several hires or vendors.
Best for Combining Design with Development Under One Roof – Phenomenon Studio
Phenomenon Studio positions itself as a product design and development agency, pairing UI/UX work with web and mobile app development for both startups and larger enterprises. That combination suits a founder who wants the team that designed the product to also be the one writing the code, rather than handing a finished file to a separate dev shop.
Phenomenon Studio is rated 5.0 on Clutch, a detail worth knowing if third-party reviews factor into how you shortlist a design partner. Because the firm splits its attention between startups and enterprise clients, an early-stage team might get a slightly different rhythm of attention than a founder working with a startup-only shop would.
Best for Design Systems Serving Startups Worldwide – Excited
Excited is a digital product design agency working with companies and startups anywhere, covering websites, SaaS products, mobile apps, design systems and usability work. The breadth across those five areas makes it a reasonable fit for a team that needs more than one type of deliverable but isn’t necessarily looking for an embedded, Slack-level partnership.
Working with companies and startups worldwide also means Excited isn’t specialized to one stage or one kind of product, so a founder who wants a design partner that lives deep inside a specific category, SaaS alone, for instance, may find a narrower specialist a tighter match.
Best for Fortune 500 Customer Experience Work – G&CO.
G&CO. is a different animal entirely. Headquartered in New York City, it’s a global customer experience consulting firm and digital transformation partner built for Fortune 500 brands and companies in the retail and consumer goods industry, with more than 50 digital transformation consultants on staff and services spanning commerce excellence, competitive intelligence and brand and content architecture.
That scale and client list point squarely at large, established retail and consumer brands rather than early-stage startups, so a seed or Series A founder looking for a lean, fast-moving design partner is probably not the intended audience here. For a retail enterprise running a full digital transformation, though, the consultant bench and process depth are exactly the point. Readers curious about how structured design thinking shapes a product’s trajectory might find this piece on user-centered design in product development useful background before comparing agencies at this scale.
Best for Creative UI/UX Across Healthcare and eCommerce – Gapsy Studio
Gapsy Studio is a UI/UX design agency building app and web products for healthcare, eCommerce, SaaS and other industries, with a creative design studio approach as its calling card. Spreading across that many industries gives Gapsy Studio a wide reference pool to draw on, which can be an advantage if your product borrows ideas from a different sector than the one you’re building in.
That same breadth means it isn’t positioned as a SaaS-only specialist the way some of the other agencies on this list are, so a founder whose whole business is SaaS product design might prefer a team whose entire practice is built around that one category.
Best for Dedicated SaaS Designers Within a Week – Eleken
Eleken is a UI/UX design agency built specifically for B2B SaaS, aimed at teams whose product has outgrown a developer-built interface, whose launch date is close, or who simply need more design hands. The headline offer is speed: a dedicated SaaS product designer starting within a week, alongside product redesigns, pre-launch design, team extension and UX audits.
Because Eleken works as a team extension model rather than an embedded strategy partner, it suits founders who already know what needs to be designed and want execution fast, more than founders who want a partner weighing in on product decisions themselves.
Image Credit: Unsplash
What to Compare Before Hiring a Startup Design Partner
Every agency on this list calls itself a “design partner” in some form, so the differences show up in how deep that partnership goes. Ask whether the team is embedded in your daily workflow or works as a separate vendor you hand briefs to. An embedded setup, inside your own Slack or project tools, tends to move faster because there’s no translation layer between your team and theirs.
Scope is the second thing to check. Some agencies specialize narrowly in UI/UX, which is the right call if your product design is solid and you just need interface execution. Others cover the full range, product strategy, UX, web, brand and motion, which matters more if you’re also rebuilding how the company presents itself to investors or customers at the same time as fixing the product.
Stage fit matters too. A Fortune 500 consulting firm and a startup design partner solve different problems even when both use the word “design.” Match the agency’s usual client profile, enterprise, mid-market or early-stage, to where your company actually is, not where you hope to be in two years. For teams weighing whether to build this capability in-house versus bring in an outside studio, this roundup of product design studios for SaaS startups covers a related angle worth reading alongside this list.
Finding the Right Fit for Where Your Startup Is Right Now
The right choice here depends mostly on what stage you’re at and how much of the work you want handled under one roof. A Series B retail brand running a full customer experience overhaul has little in common with a seed-stage SaaS team trying to get its first hundred paying customers and the agency that fits one will rarely fit the other.
For a founder who just closed a round and needs product, brand, web and QA handled by one accountable team instead of three separate vendors, Foundey is the strongest fit on this list, particularly given its track record taking startups from MVP through Series An and its direct hand in fixing conversion and activation problems rather than just shipping files. If your need is narrower, a single interface overhaul or a fast UI/UX hire, one of the more specialized shops above may get you there with less setup.