Senior B2B SaaS product design · UK · EU · US
Your engineers are shipping faster than design can keep up.
Features land with weak UX. User onboarding stalls, activation drops, and retention curves flatten with nobody able to say exactly why. VenNexis puts senior product designers on it: the same people from first call to handoff, with no juniors swapped in once the contract is signed.
No retainer to find out whether we are any good. Start with a fixed-price audit and decide afterwards.
Trusted by startups, agencies, and software houses
You are shipping on schedule. The metrics are flat.
The roadmap is packed, engineering is executing, and code is reaching production. Yet onboarding leaks users, features get built on assumptions, and the team is guessing which change will move conversion. When product strategy and user experience are treated as a final coat of paint, you burn runway solving the wrong problems.
We work the other way around. We de-risk the decision before engineering writes a line of code: the question worth answering, validated with real users, then designed into a system that compounds retention and revenue.
Your product ships. Retention decides what happens next.
Senior design, embedded in your product team.
SaaS, fintech, healthtech, AI, and data companies. From a focused audit to an ongoing partnership, we connect design to retention, adoption, and revenue.
Learn moreYour named design partner. For briefs beyond your capacity.
Win the design-heavy briefs you have had to pass on. Senior delivery as a named partner, NDA-backed, zero client conflict. We already do this for agency partners including BrandWise.
Learn moreTen services. Three tiers. One method underneath.
Start small and fixed-price, move into a core engagement, or bring in a specialism. The same method runs underneath all three.
Tier 01 · Entry products
Prove it is worth doing, before you commit.
Fixed price, fixed scope, low risk. Most engagements start here.
- Growth Experience AuditFrom £1,190
- Hypothesis Testing SprintFrom £2,300
Tier 02 · Core engagements
Design the thing, end to end.
Where most of the work happens once the direction is settled.
- Product DesignFrom £6,900
- Design SystemsFrom £3,900
- Growth Experience SystemsFrom £7,500
Tier 03 · Specialisms
One capability, brought in where it counts.
Added to an engagement, or run on their own.
- Product Strategy & GrowthFrom £4,400
- AI Design & EnablementFrom £2,900
- Three more, from£2,300
Agencies have their own track: Agency Design Partner, NDA-backed and conflict-free, priced per engagement. Explore all ten services
Built for high-stakes work.
Senior from first call to handoff.
Every brief is led by a senior designer who owns strategy, decisions and quality, and delivered by a senior team. Specialists arrive where they strengthen outcomes.
Judgment stays human.
AI widens research and generates more options, so senior judgment is applied to better evidence. The decisions, and the accountability, stay with senior humans.
Every decision tied to an outcome.
We deliver measured results. Every engagement begins with a metric we are working toward, and every design decision maps back to that number.
Agency quality at sprint speed.
A validated prototype in 5 days. A full growth audit in 10 working days. A proposal within 48 hours. Speed is built into every product we sell.
Evidence before build.
We use AI to widen research and move faster from question to evidence. Judgment and design decisions stay with senior humans, because that is where the value sits.
We validate before we build, design from observed behaviour, and measure the result against the outcome you care about.
Validate
Test the riskiest assumption first, where changing course is cheap.
Evidence
Design from observed behaviour.
Design
Build the system that turns evidence into growth.
Measure
Every decision tied to a result you care about.
Results we've delivered.
Engagement increase on a community sports platform redesign
Task-success rate achieved in usability testing
Years of senior design leadership
Enterprise ClimateTech / ESG Platform
Turning complex carbon data into decisions people can act on. End-to-end product design for an enterprise SaaS ESG platform, delivered in partnership with an agency and shipped to MVP.
under NDA
Community Sports Platform
A redesign that lifted engagement and cut admin time, with a 95% task-success rate in usability testing. Built with the community, alongside the people who use it.
increase
Equestrian Services Marketplace
Validating a two-sided marketplace before a single line of code was written. Saved months of costly rework and gave investors a tested prototype.
rework saved
Frequently asked.
Tell us what you are building
and where it is stuck.
We will tell you straight whether we are the right partner for it.
Prefer email? Write to info@vennexis.com
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Read more Service SpotlightValidate before you build.
The Hypothesis Testing Sprint exists for one reason: to confirm you are right while changing course is still cheap.
Explore the sprint For AgenciesThe named design partner that expands what your agency can win.
Senior delivery as your named design partner, already trusted by startups, agencies, and software houses. NDA-backed, with zero client conflict and senior-level quality on every brief.
Explore the partnership Our Founder20+ years. One focus.
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