Welcome 500 Global Startups

The Revenue System That Validates PMF and Scales Founder-Led Sales

You're testing 10 different value props across scattered tools. Your outbound sequences live in spreadsheets. You lose qualified leads because follow-up depends on your memory.

Markster is the revenue system that fixes this. Strategy playbooks, execution software, and AI Workers—working together to validate product-market fit faster and scale founder-led sales without hiring. 90% off Foundation for 12 months. Only for 500 Global portfolio companies and affiliates.

About This Partnership

Fellow 500 Portfolio Cos:
We Built This For You

Markster is part of the 500 Global portfolio. We solved a similar same problem you're facing right now: testing PMF hypotheses across 12 different tools, running founder-led outbound from Gmail and spreadsheets, losing qualified leads because follow-up lived in your head instead of automated systems.

We built a revenue system that turned hypothesis testing into repeatable experiments. We validated channels 3x faster. Scaled outbound without hiring SDRs. Instrumented our funnel to identify what actually drove activation versus vanity metrics.

Now we're giving back to fellow founders in the 500 ecosystem. This isn't charity—it's what we wish existed when we were grinding through validation cycles with duct-taped tool stacks. Startups using this system run 20-30 positioning tests per month instead of 2-3, touch 500+ prospects weekly without hiring, and get actual PMF signals instead of guessing from incomplete data.

Strategy Playbooks

Proven testing templates and campaign frameworks from companies that already found PMF. Your positioning experiments, outbound sequences, and qualification criteria documented into executable workflows. Start with what works instead of guessing.

Execution Software

Your playbooks run automatically—triggering follow-ups at your timing, booking calls using your criteria, moving prospects through pipelines. One platform instead of 8 disconnected tools. Everything talks to everything so nothing falls through cracks.

Funnel Analytics

Track conversion from first touch to qualified lead to activated customer. See which positioning angles drive signups versus bounces. Identify where prospects stall in your funnel. Get actual PMF signals instead of guessing from incomplete data.

Testing Infrastructure

Run 5-10 landing page variations simultaneously to test value props. Build forms and surveys that capture which messaging resonates. A/B test across channels before committing budget. Ship hypothesis tests in hours, not weeks.

Automated Webinar Engine

Just-in-time webinars let prospects self-select into demos within 10 minutes of inquiry. Evergreen sequences run 24/7 testing loops without founder time. Registration to attendance to conversion data validates interest level before you invest in product polish.

Founder-Led Outbound System

Touch 200-500 prospects weekly with automated email and SMS sequences. 4-7 touch campaigns run without manual work. Built-in calendar booking eliminates scheduling friction. Scale systematic prospecting without hiring SDRs.

1. Validate Your ICP and Positioning

Testing infrastructure deploys. Run 20-30 positioning experiments across landing pages and outbound campaigns. Tag and segment responses to identify which buyer personas engage versus ignore. First revenue validates that people will pay.

2. Find Your Repeatable Channel

Automated sequences touch 500+ prospects weekly. Multi-channel tests reveal which acquisition channels deliver qualified leads. Funnel tracking shows conversion rates from contacted to closed. One channel proves repeatable—this becomes your foundation.

3. Scale Without Hiring

Automation, AI, or you handle lead response and qualification. Automated demo delivery books 10-20 calls weekly without founder involvement. Pipeline instrumentation identifies what drives activation. You have a system that generates revenue while you build product.

HVAC Contractor

How David Doubled Appointments Without Hiring

Couldn't afford salespeople for seasonal business. Deployed Markster in 66 days. Went from 50 to 100+ monthly appointments with same crew. Avoided $72K in hiring costs. Revenue predictable instead of feast-or-famine.

Accounting Firm

How Robert Cut Hours 50% and Doubled Revenue at 63

Worked 70-hour weeks, missed family time. System deployed in 73 days. Now works 35 hours weekly. Revenue jumped from $443K to $900K. AI handles inquiries and proposals automatically.

“Markster's AI does market research and proposals while I sleep”

“I hated writing proposals, they used to eat 12-16 of my hours every week. Markster's AI handles the research now. It analyzes competitors, finds market gaps, builds custom proposals overnight. We went from 1-2 proposals weekly to 15+. Our profit jumped 31% because I'm closing deals instead of writing decks. I actually took a vacation last month.“

Tamas

- Founder & CEO at Kontext

“By the time I'd call leads back, they already found somebody”

“I was always too slow. Lead would come in, I'd call back that afternoon or next morning. Already gone to a competitor. Markster hits them in minutes now. I'm first to respond and first wins. My close rate went from maybe 1 in 5 to 3 in 4. Same leads, just faster response. That's the difference between hoping for work and choosing which jobs to take.“

Tyler

- Co-Owner at Martin Plumbing

“Markster does what 3 salespeople used to do”

“I couldn't grow without hiring more guys to chase leads. More payroll equals more headaches. Some months they're busy, some months I'm just paying them to sit around. Markster does what 3 salespeople used to do. Same crew, double the work coming in. No extra salary, no management drama, just consistent leads turning into jobs.“

David

- President at Comfort Air

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The Revenue System That Validates PMF and Scales Founder-Led Sales

Fellow 500 Portfolio Cos:
We Built This For You