Two senior marketers and a stack of AI agents. We run paid media, search and lifecycle for founder-led SaaS and ecommerce teams, and we tell you what we see.
Paid subscribers for a US SaaS company, on the same Google Ads spend.
ZFG clientGoogle Ads revenue year over year for a Philippines ecommerce retailer. Non-brand revenue up 115%.
ZFG clientYearly revenue growth for a European cat furniture brand. Google Ads, SEO and email across four countries.
Harrie, in-house leadAd spend run across Fortune 50 brands.
Vishal at AccentureWe label whose result each number is. If a figure on this site came from a team, a past employer or a client, it says so.
Four things changed how growth works. Most agency playbooks haven't caught up.
Google and Meta now automate bidding, targeting and much of the creative. Everyone gets the same automation. You win on what you feed it: clean conversion data, a strong offer and creative worth testing.
Buyers now ask ChatGPT or Perplexity, or read the AI answer at the top of Google, and often never click. Ranking isn't enough any more. You need to be the source the answer quotes.
AI writes passable ads, emails and blog posts in seconds, so everyone has them. Passable is the new floor. First-hand proof, a clear position and judgment are what stand out.
Privacy rules and fewer cookies mean your dashboards disagree with each other. Teams that fix tracking and test what their ads actually caused place better bets.
“Yes, we have playbooks. But we know when to ignore them.”
You never get handed to a junior, because there aren't any. The repetitive work goes to AI workflows we built and run on our own ad accounts.
Vishal's own Google Ads setup gets through about two weeks of work in two hours this way. We publish the workflows free at GruntStack, so you can see how we work before you hire us.
Every business is different, so we don't start from a template. We learn your product, your customers and your context first. Then we define, execute, learn and iterate.
Google, Microsoft and Meta ads, run for the automated era. Clean conversion signals, creative worth testing, and budget that follows profit.
How it works02Be the answer, not just a result. Get found on Google and quoted by ChatGPT, Perplexity and Google's AI answers.
How it works03Tracking that tells the truth. Clean conversions, real sales fed back to the ad platforms, and one set of numbers everyone believes.
How it works04More customers from the traffic you already pay for. Message match, speed, clear offers, and new paths like chat and voice AI.
How it works05Your list is the one channel no algorithm can take away. We turn it into repeat revenue with flows that run every day.
How it works06The AI workflows we run our own ad accounts on, set up inside your team. Scripts do the math, AI does the reading, people make the calls.
How it worksStrategy isn't a separate line item. It sits on top of all six, and it's the first thing we do.
In an arch, the keystone is the one stone that locks the others in place. Find the one thing holding growth back, fix it, then build every channel around it.
Fix tracking first. The ad platforms and your own decisions both learn from this data.
Find the one constraint holding growth back: offer, audience, channel, conversion or retention.
Set up the channels that compound: paid media, search and AI answers, landing pages, email.
AI agents take the repetitive jobs: audits, search-term reviews, reporting, first drafts. People keep the judgment.
Weekly cycles: launch, read the numbers, keep what works. You own the accounts, data and workflows.
A fixed-scope audit.
We go through tracking, ad accounts, search and AI visibility, and the funnel. You get a one-page diagnosis and a 90-day plan that's yours to run, with or without us.
Best forTeams who want a straight second opinion.
We run the channels with you.
The full Keystone system, ongoing. We do the work in your accounts, send a weekly note and sit in a shared channel with your team.
Best forTeams with budget and no senior marketer.
We set it up, you run it.
We build the tracking, the channel setup and the AI workflows inside your team, train your people and step back.
Best forTeams with marketers who want better tools and direction.
We don't work with everyone. We take on a few high-conviction teams at a time who value execution over excuses.
Past product-market fit, ready to turn a working product into a predictable pipeline.
Good products, real margins, and ad spend that should be working harder.
Technical or product founders who want a marketing partner that speaks plainly.
Not another deck. Someone who logs in, changes things and owns the result.
A US SaaS QR code generator. Same Google Ads spend, spring against summer 2026, with 70% more paid subscribers at 41% lower cost each.
Read the case studyEcommerce, restricted category43%Search impression share, up from 11%A Philippines ecommerce retailer in a category Google barely lets advertise. Revenue up 66% year over year, non-brand revenue up 115%, and now the most visible advertiser in its category in the country.
Read the case studyEcommerce, pet products30%+Yearly revenue growthGoogle Ads, SEO and email marketing for a European cat furniture brand, led in-house by ZFG co-founder Harrie van de Sande.
Read the case study
Sixteen years in growth marketing. Ran about $10M a month in ad spend across Fortune 50 brands at Accenture, set up a team working with the Google Ads product group, and built a $6M+ a year business on Microsoft Ads from zero. Also builds GruntStack, where he publishes free AI workflows for running ads.
Bengaluru, Indiavizoomer.com
Search specialist with an ecommerce operator’s eye. Spent four and a half years on search at a European cat furniture brand: first as SEO specialist, then leading SEO, paid search and email across all its markets. Technical SEO, site structure and conversion are home turf.
The Netherlands
Vishal and Harrie. There is no junior team and there are no account managers. AI agents handle the repetitive work, and a founder makes every call that matters.
For the repetitive parts: audits, search-term reviews, reporting and first drafts. Scripts do the math so the numbers are right. People decide strategy, offers and anything that spends money. We publish the workflows at gruntstack.com.
No. SaaS and ecommerce are who we built this for, but the method is the same anywhere. If you sell online, know your margins and want straight answers, talk to us.
A few at a time. We are two founders, so capacity is limited on purpose. If we are full, we will say so.
It depends on scope, so we don't publish prices. After a first conversation you get a fixed quote, not an hourly meter.
The Netherlands and India. We work in English and Dutch.
Tell us what you sell and the one number you want to move. You’ll get a straight answer on whether we can help, even if the answer is no.