Marketing strategy agency
Looking for a marketing strategy agency that does more than write a plan? We sharpen your growth choices and translate them into execution, budget and measurable pipeline.
Tanguy De Keyzer Founder & digital strategist Last updated: 28 September 2026
Trusted by growing brands
Sound familiar?
We do marketing, but without a clear plan or direction.
Our decisions are based on gut feeling, not on data.
I don't know where my budget is best spent.
How we help
We build a data-driven marketing strategy that sharpens your priorities and raises your odds of success.
Why Customer Impact
We start from your numbers, market and customers, not from a hunch about what should work.
We pick the few actions with the biggest impact, instead of doing a little bit of everything.
A strategy that puts both teams on the same goals, so leads actually become customers.
No plan that ends up in a drawer: we create it and execute it, together with you.
About Customer Impact
Customer Impact is a digital marketing agency founded by Tanguy De Keyzer. For more than 10 years we have been building the growth engine of startups, scale-ups and established companies.
For us, a strategy is never a document that ends up in a drawer: we set the priorities and execute them, so your plan actually delivers growth.
What we stand for:
What we do
Insight into the strengths and weaknesses of your current approach, so you set the right priorities.
Uncover the data to steer all your marketing functions and increase your impact on customer acquisition.
We pin down your addressable market so every touchpoint contributes to potential revenue.
We build the models so every decision has a measurable impact on your revenue.
Based on market research and persona development, we build strategies for your most important audience.
A plan for deploying digital channels and technologies to reach your business goals.
Our process
We map your market, audience, competition and current numbers.
We set clear goals and identify the levers that get you there fastest.
We choose the channels and the message that truly resonate with your audience.
We translate the strategy into a concrete plan and set it in motion.
We track results and refine the strategy based on data.
Performance marketing drives qualified brand awareness alongside sales KPIs such as leads, SQLs and revenue. With Customer Impact you put the customer at the center of your marketing strategy: we develop targeted plans based on data, not just gut feeling.
Putting customer insights to work is how today’s best companies grow: focused, measurable and sustainable.
Strategy is above all about choosing what not to do. Most marketing budgets underperform because they get scattered, while sharp choices based on data and customer insight dramatically raise your odds of success.
Tanguy De Keyzer Founder of Customer Impact and digital strategist No empty promises. This is what clients say about working with Customer Impact.
“I have been working with Customer Impact for a while now and it has been a breath of fresh air from the very start. The team complements itself perfectly, so you always have someone with very extensive knowledge of specific aspects of marketing, ranging from ads to web design and strategy. The hands-on approach means you can always get started right away, and the feedback is always clear and honest. No nonsense, just facts.”
Axel D.S.
Verified review via Google
“Customer Impact built a strong new website for us and set up a lead generation approach that truly delivers results.”
Janitor Waterschoot
Verified review via Google
“They do not just execute, they also think along strategically. Real B2B specialists. Recommended!”
Jack Daly
Verified review via Google
“Sharp and fast analysis of the problem, processes and possibilities. No complicated sales talk, fast, and a first setup that works well. A bit more attention to the fine tuning. Pleasant collaboration.”
Tandarts.nl
Verified review via Google
“Smooth communication, proactive thinking and everything neatly followed up.”
Claire Farrell
Verified review via Google
“Super professional and extremely creative! They managed to adjust and respond to all of our needs numerous times. Highly recommend ❤️”
Jovana Vakic
Verified review via Google
Compare your options
| Customer Impact | Large agency | Freelancer | In-house | |
|---|---|---|---|---|
| Starting point | Customer insights and growth goal | Often a broad analysis | Often one discipline | Depends on your team |
| From plan to execution | Strategy and execution in one team | Often a separate execution team | Usually the plan only | Depends on capacity |
| Steering on | Leads, customers and revenue | Often brand metrics | Varies | Depends on goals |
| Minimum term | 3 months | Often 6 months or longer | Per assignment | Employment contract |
| Response time | Reply within 24 hours on working days | Via an account manager | Depends on availability | Immediate, but often one person |
These are typical traits per type of partner, not statements about specific agencies.
What to expect
Week 1 to 2
Customer insights, market and competitor analysis, and your goals.
Week 3 to 4
Positioning, target segments and the channels that fit.
Month 2
A concrete plan with priorities, budget and KPIs.
Month 3 onwards
We execute, measure and adjust the plan along the way.
Case studies
Food&i wanted to align marketing and sales for the long decision cycle in facility services and catering. We translated an in-depth workshop into one marketing and sales blueprint with a go-to-market per brand: corporate catering, Break Express and New Fork.
“A clear program that finally puts marketing and sales on the same plan, from brand building to the tender desk.”
TinRate had a vision, making knowledge instantly sellable without intermediaries, but no language or strategy to make it understandable and investable. We defined the positioning, the copy architecture and a phased go-to-market. In 90 days TinRate went from zero to traction, positioned as an emerging new category.
Read the caseSuivo wanted to depend less on events and grow more through inbound. We developed the go-to-market, channel strategy, website and lead generation. From 2024 to 2025 the pipeline via the web rose by 142%, and 85% of the total pipeline now comes in via the web.
In all honesty
Contact us
Briefly tell us what it is about. You get a personal reply from Tanguy or someone from the team, not a call centre.
Your offering isn't for everyone, and your strategy shouldn't be either. By putting customer insights first, you avoid wasted budget and significantly raise your odds of success.
On market and customer research, your existing performance data and clear financial models, so every choice is substantiated and geared towards revenue.
From strategic advice to notacheckers.nl, a tool that checks dental bills.
A feature-led homepage rebuilt into an engine for enterprise leads, in 90 days.
Positioning and go-to-market that set TinRate up as a new category.
