Measurement-first startup growth partner

The only growth partner that starts with
measurement

We build clean measurement infrastructure, then run the growth engine on top of it. Every pound you spend is tracked to revenue — not traffic, not leads, revenue.

Get a Free Growth Audit →

No retainer lock-in. Cancel any time.

11+
Startups grown
−41%
Avg. CAC reduction
3.2×
Avg. pipeline growth
90d
Typical impact window
Across our clients →
Marketing MeasurementPerformance SEOPaid AcquisitionConversion OptimisationGA4 AttributionRevenue AnalyticsSaaS GrowthReal Estate LeadsEcommerce ROASCAC ReductionPipeline GrowthGEO StrategyMarketing MeasurementPerformance SEOPaid AcquisitionConversion OptimisationGA4 AttributionRevenue AnalyticsSaaS GrowthReal Estate LeadsEcommerce ROASCAC ReductionPipeline GrowthGEO Strategy
📐
Measurement-first

We fix your tracking before touching a single campaign. Every decision we make is based on data you can trust.

📈
Revenue you can forecast

Most agencies optimise for traffic. We build for pipeline consistency. Clean attribution, repeatable acquisition channels, and monthly reporting that tells you what's coming — not just what happened.

📂
You own everything

Every system, dashboard, and strategy we build belongs to you — with no dependency on us to maintain it.

🚫
No % of ad spend

We never charge a percentage of your media budget. You pay for expertise — not a cut of what goes to Google and Meta.

What we do

A full growth engine.
No guesswork.

Every service we offer is built around a single principle: your marketing spend should be traceable to revenue. Not leads. Not clicks. Revenue.
01
📊
Marketing Measurement & Tracking

We fix the numbers before we scale them. Clean GA4, CRM attribution, and event tracking form the foundation of every engagement.

Learn more →
02
🔍
Performance SEO / GEO

We don't chase rankings. We chase customers. Long-term, compounding organic revenue built for your specific market.

Learn more →
03
⚡
Data-Driven Paid Acquisition

We manage your ad spend like it's our own money. No wasted budget — every pound is tracked to real business outcomes.

Learn more →
04
🎯
Conversion Optimisation & CRO

Traffic is only valuable if it converts. We optimise your full funnel to dramatically increase ROI and reduce wasted spend.

Learn more →
How we work

AI speed.
Human judgement.
The results are the difference.

We use AI to do in hours what used to take weeks — auditing your tracking setup, modelling attribution, identifying keyword opportunities, and analysing competitor positioning. This means you get clarity faster and we spend our time on the work that actually matters: making decisions.

But AI doesn't understand your market, your buyer's psychology, or the nuance behind why a campaign is underperforming. That's where our team comes in. Every insight AI surfaces is filtered through human experience before it ever reaches your strategy.

10× faster audits Real-time attribution modelling AI-assisted content at scale Predictive CAC forecasting Competitive intelligence
🤖
AI does the heavy lifting
GA4 audits in minutes. Attribution modelling across 6 channels. Keyword gap analysis across 10,000+ terms. Competitor creative scanning. What took 3 weeks now takes 3 hours.
filtered by
🧠
Human judgement makes the calls
Our strategists interpret every data point through the lens of your specific market, buyer intent, and competitive dynamics. AI identifies patterns. We decide what to do about them.
results in
📈
Faster, smarter growth outcomes
Clients reach data clarity in weeks, not months. Campaigns launch with better targeting from day one. Every decision is backed by both speed and experience.
Who we are

We're not a digital marketing agency.
We're your growth team.

🇬🇧 United Kingdom
Coventry, United Kingdom
🇳🇬 Nigeria
Lagos, Nigeria

Mowsix was built by marketers who got tired of watching startups burn budget on vanity metrics and gut-feel decisions. We've been on both sides — as in-house growth leads and as advisors — and we know that the gap between "spending on marketing" and "growing revenue" almost always comes down to measurement.

We're a lean, senior team with deep expertise in SaaS, real estate, and ecommerce. No juniors running your campaigns. No account managers as middlemen. You work directly with the people doing the work.

Meet the team →
01
Revenue over vanity

We optimise for pipeline and closed revenue — not impressions, sessions, or engagement rates that look good in a deck but don't pay salaries.

02
Measurement before spend

We won't scale what we can't measure. Every engagement starts with getting your tracking right, so every decision that follows is based on truth.

03
Senior team, direct access

No bait-and-switch. The strategists you speak to in the audit are the same people running your growth programme. Always.

Client results

Featured work.

View all case studies →
Saas
Kredify

From ₦1M/month wasted on unattributed Meta spend to a verified 4.1× ROAS — in 10 weeks.

4.1×
Verified ROAS
−62%
Cost per verified sign-up
The problem

Kredify, a Lagos-based lending startup, was spending ₦1M monthly on Meta ads with no reliable way to track which campaigns were generating actual loan applications — versus people who clicked but never completed KYC. Their dashboard, CRM, and finance team all showed different numbers. Nobody could agree on what was real.

The outcome

From ₦1M/month wasted on unattributed Meta spend to a verified 4.1× ROAS — in 10 weeks.

View case study →
Saas
AfyaCare

3.4× more appointment bookings. Same ad spend. Zero additional headcount.

3.4×
Monthly appointment bookings
−54%
Cost per booked appointment
The problem

AfyaCare, a private clinic network with locations in Lagos and Abuja, was running Google Ads through a generalist agency. Ads were live, spend was going out — but the clinic coordinators had no idea which campaigns were actually driving people through the door. The agency was reporting clicks. AfyaCare needed to know about bookings.

The outcome

3.4× more appointment bookings. Same ad spend. Zero additional headcount.

View case study →
Social proof

What founders
actually say.

Read case studies →
"

"The audit Mowsix ran in week one surfaced issues our previous agency had missed for 18 months. The results since working with them is exceptional"

AN
Amaka N.
Head of Growth, Kredify
−38%
CAC reduction
★★★★★

"Most agencies tell you what you want to hear. Mowsix told us our conversion rate problem was actually an onboarding problem. They were right. MRR doubled in 6 months"

SK
Sarah K.
Co-founder, Saas Startup
★★★★★

"We went from 4 organic landlord leads a month to 31 in 6 months. They built us a content and SEO engine we now own entirely. No dependency on them to maintain it."

DC
David C.
Founder, Vantage Lettings
★★★★★

"Before Mowsix, we were spending £3k a month on paid and genuinely couldn’t tell which channel was driving pipeline. Within 6 weeks they had our tracking completely overhauled and we cut our CAC by 38%. It changed how we make every marketing decision"

JO
James O.
CEO, PropTrack Analytics

Ready to grow
the right way?

Free 45-min growth audit. No pitch deck. Just an honest diagnosis of what's holding your startup back — and the fastest path forward.

Book your free audit ↗

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