# Zero Filter Growth

> Paid media, SEO and AI search, measurement and lifecycle for founder-led SaaS and ecommerce teams. Run by two founders, with AI agents on the repetitive work.

Zero Filter Growth (ZFG) is a founder-led growth marketing firm for SaaS and ecommerce teams. It is run by its two founders, who do the work themselves, with AI agent workflows handling repetitive tasks such as audits, search-term reviews and reporting. ZFG is the successor to The Growth Sauce (thegrowthsauce.com), a Netherlands-based agency.

## Founders
- Vishal Vaibhav Dhanuka (Bengaluru, India): Paid media, measurement and AI workflows. 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.
- Harrie van de Sande (The Netherlands): SEO, AI search and ecommerce growth. 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 Keystone Marketing System
1. Get the signal right: Fix tracking first. The ad platforms and your own decisions both learn from this data.
2. Find the keystone: Find the one constraint holding growth back: offer, audience, channel, conversion or retention.
3. Build the arch: Set up the channels that compound: paid media, search and AI answers, landing pages, email.
4. Automate the grunt work: AI agents take the repetitive jobs: audits, search-term reviews, reporting, first drafts. People keep the judgment.
5. Ship, learn, hand over: Weekly cycles: launch, read the numbers, keep what works. You own the accounts, data and workflows.
Full description: https://zerofiltergrowth.com/approach/

## Services
- [Paid media](https://zerofiltergrowth.com/services/paid-ads/): Google, Microsoft and Meta ads, run for the automated era. Clean conversion signals, creative worth testing, and budget that follows profit.
- [SEO and AI search](https://zerofiltergrowth.com/services/seo-geo/): Be the answer, not just a result. Get found on Google and quoted by ChatGPT, Perplexity and Google's AI answers.
- [Measurement and data](https://zerofiltergrowth.com/services/measurement/): Tracking that tells the truth. Clean conversions, real sales fed back to the ad platforms, and one set of numbers everyone believes.
- [Landing pages and conversion](https://zerofiltergrowth.com/services/cro/): More customers from the traffic you already pay for. Message match, speed, clear offers, and new paths like chat and voice AI.
- [Email and lifecycle](https://zerofiltergrowth.com/services/lifecycle/): Your list is the one channel no algorithm can take away. We turn it into repeat revenue with flows that run every day.
- [AI workflows](https://zerofiltergrowth.com/services/ai-workflows/): The 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.

## Case studies
- [How a cat furniture brand grew yearly revenue by over 30%](https://zerofiltergrowth.com/work/european-cat-furniture-brand/): Google Ads, SEO and email marketing for a European cat furniture brand, led in-house by ZFG co-founder Harrie van de Sande. Results: Yearly revenue growth 30%+, Google Ads conversions +175%, Google Ads clicks +104%, Google Ads conversion rate +32%.
- [From 11% to 43% search impression share in a restricted category](https://zerofiltergrowth.com/work/philippines-ecommerce-retailer/): 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. Results: Search impression share, up from 11% 43%, Revenue +66%, Non-brand revenue +115%, Cost per purchase −15%.
- [70% more paid subscribers for the same ad spend](https://zerofiltergrowth.com/work/saas-qr-code-generator/): A US SaaS QR code generator. Same Google Ads spend, spring against summer 2026, with 70% more paid subscribers at 41% lower cost each. Results: Paid subscribers +70%, Cost per paid subscriber, down from $191 $113, First-payment revenue +71%, First-payment return on ad spend, up from 0.75× 1.28×.

## Contact
- Contact page: https://zerofiltergrowth.com/contact/ (email shown after a quick human check)
- Free AI workflows published by Vishal: https://gruntstack.com