Grexa AI —
0 to Scale
in B2B SaaS
Built the entire growth engine for an early-stage AI marketing SaaS from absolute zero — GTM strategy, 50M+ influencer views, a 50% demo-to-customer conversion rate, 75% customer retention, and 50% month-on-month growth. No playbook existed. I wrote it.
Last updated: March 2026
Definition: Total cumulative views across all influencer campaigns
Source: Creator analytics + platform data (Instagram, YouTube, LinkedIn)
Paid media equivalent: ~₹80–120L+ at standard CPM rates
Note: Achieved at near-zero media cost — creator-first strategy
Numerator: Paid customers within 14 days of attending product demo
Denominator: Qualified demos conducted
Source: CRM pipeline data
Industry benchmark: ~15–25% for B2B SaaS demos
Driver: Pre-qualified leads + ICP-focused demo narrative
Definition: % of paying customers who remain active after 90 days
Source: Product analytics + billing records
Industry benchmark: ~30–40% for early-stage B2B SaaS
Driver: WhatsApp + email lifecycle, onboarding cadence, value delivery loop
Definition: Monthly revenue growth rate (MoM)
Source: Internal revenue records
Period: Consistent average across Aug 2025 – Mar 2026
Note: Compounding — 50% MoM for 8 months = ~25× from baseline
The Situation I Walked Into
An AI product with genuine market potential and zero commercial infrastructure. The entire growth function needed to be built from scratch — strategy, channels, systems, playbooks, all of it.
Grexa AI is an early-stage Navi Mumbai-based B2B SaaS startup building AI-powered marketing solutions for Indian SMBs. The product addresses a real and large problem: small and medium businesses in India struggle to manage consistent marketing across Google Business Profiles, local SEO, content, and advertising — and Grexa automates large parts of this.
When I joined in July 2025, the product existed. Revenue did not. There was no GTM strategy, no acquisition playbook, no content system, no retention engine. The team was primarily product-focused. My mandate was to build the commercial layer — from the ground up, with a constrained budget, targeting 50+ GBP categories across diverse SMB verticals.
This is the most strategically complex engagement of the four in my portfolio — because in SaaS, you're not just acquiring customers. You're acquiring them at a cost lower than their lifetime value, while simultaneously ensuring they stay long enough to generate that value. Both levers have to work at the same time.
The "from zero" constraint is the most clarifying brief a growth marketer can receive. There is no existing strategy to defend, no entrenched channel to over-index on, and no historical data to misinterpret. But there is also no floor to stand on — no proven messaging, no validated ICP, no acquisition channel with a track record. Every decision is a hypothesis. Every rupee spent is a test. The growth operating system you bring to the engagement is everything — because you have nothing else to lean on.
The primary question I needed to answer first: who exactly is the Grexa AI customer, and where do they congregate before they know they need this product?
What Zero Looks Like — and Why That's a Gift
Starting from zero is harder than fixing a broken system, but it is cleaner. No bad habits to unlearn. No legacy campaigns to defend. Just open space to build the right way.
How I Think & Execute — Applied to B2B SaaS from Zero
The same 5-step framework applied across all four engagements — here adapted for the unique dynamics of 0→1 SaaS growth, where acquisition and retention must be built simultaneously and every decision is a validated hypothesis.
0 to Scale — Month by Month
How an AI SaaS went from zero revenue to a compounding growth engine in under 9 months — and the specific sequence of decisions that made it possible.
The Numbers, In Full Context
Hover each metric for full methodology. This engagement is still live — every number below reflects the current compounding state of the system, not a historical peak.
Source: Creator analytics + platform data (Instagram, YouTube, LinkedIn)
Period: Jul 2025 – Mar 2026 cumulative
Media cost equivalent: ₹80–120L+ at standard CPM — achieved near-zero cost
Note: Organic reach only — no paid amplification of influencer content
Source: CRM pipeline — demos completed vs. paid customers acquired (14-day window)
Industry avg: 15–25% for B2B SaaS demos
Driver: Pre-qualification sequence + personalised demo narrative
Note: Only qualified demos included — unqualified/no-show demos excluded
Definition: % of paying customers active after 90 days
Source: Product analytics + billing records (rolling 90-day average)
Industry avg: 30–40% for early-stage B2B SaaS (first 12 months)
Driver: 90-day retention playbook: onboarding + 30-day check-in + lifecycle
Definition: Month-over-month revenue growth rate
Source: Internal revenue records
Period: Consistent average Aug 2025 – Mar 2026 (8 months)
Compounding note: 50% MoM for 8 months = ~25× revenue from baseline
The Receipts
Replace placeholders with real screenshots and artifacts from this engagement. The influencer view data and demo CVR are the most compelling proof artifacts — add those first.
GBP optimization topic
View count screenshot
Platform breakdown
50M+ milestone
Creator brief template
Content hook framework
15+ active partners
Category diversity
MoM growth chart
Jul 2025–Mar 2026
90-day cohort view
75% retention rate
Qualified demos booked
50% conversion rate
Month over month
SMB vertical breakdown
5-stage funnel map
Full system overview
WhatsApp + Email flows
Onboarding sequence
Pre-qualification flow
Personalised demo script
10 GBP categories
Category-specific GTM
SMB targeting results
CPL + ROAS data
GBP + local marketing
Search intent campaigns
50+ categories managed
Visibility improvements
Looker Studio
Full GTM visibility
The One That Didn't Work
Every growth system produces experiments that fail. Here's one from Grexa AI — and the principle I extracted from it.
What I Now Know to Be True
Three principles from building a SaaS growth engine from zero — transferable to any B2B SaaS or product-led growth role.
What I'd Do in Your First 90 Days
If you hired me into a B2B SaaS, PLG, or growth-stage startup role today — here is exactly how I'd operate from week one.
What the Founding Team Said
Replace placeholder testimonials with real quotes from Grexa AI's founding team. Since this is a current engagement, even a WhatsApp message screenshot or LinkedIn comment from the founders works as authentic proof.
"Kevin didn't just run campaigns — he built an entire growth system from scratch that we didn't have the language to ask for. The influencer strategy was his idea, the demo flow was his design, the retention playbook was his blueprint. Every metric that matters in our SaaS is above industry average because of the system he built."
0 → Revenue Stage · 75% Retention · 50% Demo CVR"What impressed me most was that Kevin understood SaaS growth differently from most marketers. He talked about acquisition and retention as two sides of the same equation from day one. He built both simultaneously. The 50M views number sounds impressive in isolation, but the real proof is that it translated into qualified demos and actual paying customers who stayed."
50M+ views → Qualified pipeline → 50% demo conversion