Performance, clients, and where we are headed
Gemma Analytics is a Berlin-based data consultancy founded on a simple belief: data should work for people, not the other way around. We are a senior, full-stack team combining strategy, engineering, and enablement — always hands-on, always collaborative.
We don't hand off to juniors. We don't push tool agendas. We don't create dependency.
Our consultants come from backgrounds in analytics engineering, data science, machine learning, and business intelligence. Every engagement is led by someone who has built production data systems — not just advised on them.
We are small by design. That keeps us focused, fast, and genuinely invested in your success.
Most consultancies either write strategies or write code. We do both — and we make sure your team can own the result long after we're gone.
Strategy and execution live in the same team. The person who designs your data model is the same person who builds it.
Senior expertise at every stage. You always know who is doing the work and why.
We build capability inside your organisation. Documentation, knowledge transfer, and coaching are part of every engagement — not an upsell.
We start by listening. Every data problem is a business problem in disguise, and we won't propose a solution until we understand the context behind it.
From there we move fast — scoping, building, and iterating in close collaboration with your team. We adapt to your stack, your processes, and your pace.
data@gemmaanalytics.com · gemmaanalytics.com · Berlin, Germany
The table below summarises key client metrics across both financial years, covering new client acquisitions, retention rates, and satisfaction scores collected through quarterly reviews.
| Metric | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Full Year 2024 |
|---|---|---|---|---|---|
| Active clients | 18 | 21 | 24 | 27 | 14 |
| New clients acquired | 4 | 5 | 5 | 6 | 8 |
| Client retention rate | 82% | 85% | 88% | 91% | 79% |
| Avg. satisfaction score (1–10) | 7.8 | 8.1 | 8.4 | 8.7 | 7.4 |
| Repeat engagements | 6 | 8 | 9 | 11 | 5 |
| NPS score | 42 | 48 | 54 | 61 | 37 |
Retention and satisfaction both improved steadily through the year, reflecting the investment made in structured onboarding and quarterly business reviews introduced in late 2024.
The chart below tracks three indicators across the four quarters of 2025: total active clients, retention rate, and average satisfaction score. All three trend upward, with retention and satisfaction accelerating in H2.
Active client count grew from 18 in Q1 to 27 by Q4 — a 50% increase within a single year. Combined with 8 new clients acquired in 2024, the trajectory reflects strong word-of-mouth and an expanding referral network. If the current quarterly run rate holds, Gemma is on track to surpass 35 active clients by mid-2026.
Client retention reached 91% in Q4 2025, up from 79% the prior full year. This is well above the professional services industry average of approximately 75–80%. High retention reduces the cost of growth — every retained client lowers the number of new clients needed to hit revenue targets and reduces the onboarding overhead on the delivery team.
An average satisfaction score of 8.7 out of 10 at year-end, alongside an NPS of 61, places Gemma firmly in "promoter" territory. NPS above 50 is considered excellent in B2B services. This matters because promoters are the primary source of qualified inbound leads — clients who refer us typically require no sales cycle and come with established trust.
The data points to a business in a virtuous cycle: high retention frees capacity, high satisfaction generates referrals, and referrals compound growth without proportional cost increases. The priority for 2026 is not acquisition volume but delivery capacity — ensuring the team can absorb growth without diluting the quality that drives the metrics above.