Mineko
How Mineko Grew 110% YoY on our Search Ads Framework
Mineko faced the challenge of scaling their LegalTech service in a competitive market with limited Google Ads expertise. This case study reviews how Mineko partnered with us to build a high-performing search ads framework that generated substantial leads, grew revenue by 110% year-over-year, and strengthened their position as the leading service for protecting tenants from excessive utility & service bills.
Weβve been working together for over a year now, and Iβm genuinely happy and satisfied with the collaboration. A key learning for me from 2024 is working with specialists and having experts dedicated solely to Google Ads.

Chris MΓΆller
Founder, Mineko
β¬765k
Google Ads revenue in 2024
β¬222k
total budget in 2024
+110%
YoY growth
3.4x
ROAS
Executive Summary
- Helped Mineko generate +110% YoY revenue growth
- Scaled Google Ads to almost β¬800k yearly revenue
- Integrated offline conversion tracking for B2B leads/deals
- Took the topic off the founderβs plate
- Maintained healthy 3.4x ROAS while scaling strongly

Letβs find out if we are also the right partner for you
Marius Staud
COO @ Radyant
100% free β no obligations

About the case
Mineko is protecting tenants from excessive rental costs
Founded in 2014 by serial entrepreneur Chris MΓΆller, Mineko helps tenants verify their utility and service charge bills (Nebenkostenabrechnungen).
The Berlin-based startup has analyzed over 100,000 residential bills and also examines commercial property charges. Their research shows that 81% of all utility bills contain errors, with residential tenants overpaying an average of β¬317 and commercial tenants overpaying around β¬5,211.
The problem
Lack of the right specialists
- First successful tests with Google Ads
- Generally healthy performance across the board
- No offline conversion tracking for B2B leads/deals
- Fragmented campaigns that limited scaling ability
- Lots of unused potential in huge market (42m tenants in Germany)
Our approach
Let the rocket take off
- Best-in-class SEA setup across account, tracking & landing pages
- Consolidated fragmented campaigns to make them scale-ready
- Turned off unnecessary brand campaign to save ~β¬10k yearly
- Optimizing for down funnel conversion events for B2B campaigns
- Constantly optimized and tested ad copies and landing pages
The results
Mineko constantly grew, on season and off season, while always keeping healthy CACs

Strong value-driven ad copies with up to 20% CTR
Our strategic approach to ad copy focused on highlighting Minekoβs core value proposition, saving tenants money on excessive rental costs. By emphasizing concrete savings figures and leveraging emotional triggers around housing security, we achieved click-through rates of up to 20%. Each ad variant was meticulously A/B tested to optimize performance, with top-performing elements continuously refined to maintain engagement even as the campaign scaled.

Conversion-optimized and A/B tested landing pages
We developed a systematic approach to landing page optimization. By focusing on clear value propositions and reducing friction points, we improved conversion rates significantly. The landing pages prominently featured lots of social proofs, concrete savings examples, and straightforward call-to-action elements that reduced hesitation. Continuous A/B testing allowed us to quickly implement winning variations.

110% YoY growth to almost β¬800k revenue in 2024
We delivered consistent growth, with every month in 2024 outperforming its 2023 counterpart. Understanding that most tenants receive their utility bills at year-end, we built campaign momentum throughout the year and ramped up significantly for the critical November-December period.
*Conversion tracking error in October 2024, real numbers ~2-3x

Stable ROAS despite our strong scaling efforts
One of the most impressive achievements was maintaining a healthy ROAS even as we aggressively scaled the campaigns. This stability was achieved through granular bid management, tight keyword and ads optimization, and the constant landing page testing approach. By carefully monitoring performance signals and making data-driven adjustments, we ensured that each additional euro invested maintained efficiency rather than suffering from strong diminishing returns.
Radyant is not your ordinary agency
Compare us with the βclassic agencyβ with which you may have already had bad experiences. Spoiler: We are proud to be different.
Radyant | Others | |
---|---|---|
Exclusive focus on SEA & SEO | ||
Specialized in startups & scaleups | ||
Proprietary tools & workflows | ||
Results-driven approach | ||
In-house content & landing page creation | ||
Agile collaboration methods | ||
Commitment to long-term relationships | ||
Experience with EU & US markets | ||
Proactive communication at all times | ||
Live KPI tracking dashboards | ||
Daily Slack engagement | ||
Transparent pricing with no hidden fees |
This is better than most paid audits
Get an expert sparring session on your growth strategy
- Talk to experts who work with startups & scaleups every day
- The strategy call is 100% free and fully customized to your goals
- The worst that can happen is getting a lot of new insights for free

Marius Staud
Chief Operating Officer
Paid growth expert

Jessica Ehrhardt
Senior Strategist
Organic growth expert
We have already supported 50+ startups & scaleups with our expertise







What others say about working with us
We have been working very successfully with Niklas and the team since 2022. Absolute marketing experts. I can recommend them 100%. We got really lucky to hire them for our company!

Maximilian Schroeren
Co-Founder @ Enter
I am extremely enthusiastic about the collaboration with Radyant. You manage our Google Ads and SEO super hands-on, including ad control, funnel & landing page conception & tracking for all marketing channels (incl. offline conversions).

Erika Preschel
Marketing Director @ Enter (06/23β10/24)

The team is fully committed, highly motivated, and does great work. They independently bring very good ideas, and also takes care of high-quality implementation. I can fully recommend working with them!

Alexander Manafi
CEO & Co-Founder @ ToolSense
Weβve been working together for over a year now, and Iβm genuinely happy and satisfied with the collaboration. A key learning for me from 2024 is working with specialists and having experts dedicated solely to Google Ads.

Chris MΓΆller
Founder, Mineko
STEFAN PETZINGER
First, I was skeptical as to why we didn't do SEA/SEO (at Enter) in-house. However, the collaboration completely won me over: you are fast, efficient and provide input that we would not have been able to generate internally.

Stefan Petzinger
Marketing Consultant @ Enter, Trade Republic, PlusDental, and others

A very good & professional collaboration that always takes place at eye level. If you want to give your company an SEO & SEA kick, Radyant is 100% perfect for you. We have been working with Niklas & his team for almost a year now and are delighted with the results!

Kjell Klingenberg
Chief Marketing Officer @ Vamo

Radyant was highly recommended to us and we can only confirm this recommendation. The collaboration is a lot of fun and the Radyant team is super friendly and helpful. Radyant responds quickly and competently to questions and requests and always keeps an eye on the performance of the campaign.

Sarah Kinzelmann
Senior Marketing Manager

In an advisory capacity, I brought Radyant on board as a PPC agency for one of my clients and the decision paid off. Progressive PPC management is understood as it should be - beyond the channel itself, i.e. taking into account all facets of digital marketing (tracking, CRO and strategy).

Niklas Kohlgraf
Digital consultant