

How Proudpen Grew Revenue by 82% — From €1.1M to €2M — with Full Marketing Automation
We built Proudpen's entire marketing automation infrastructure from scratch — HubSpot CRM, AI customer support, email system, paid ads, and SMS automation. The result: 82% revenue growth in under a year.
Project Breakdown
The Challenge
Proudpen organizes academic and scientific conferences across Europe. As they scaled, their team was drowning in manual work: managing attendee communications by hand, chasing invoices, running ads without proper tracking, and handling hundreds of abstract submissions one by one.
They had no CRM. No automation. No way to see which marketing was working. Growth was happening despite the system, not because of it.
What We Built
We started from zero and built a complete, integrated marketing and automation infrastructure:
HubSpot CRM — built from scratch. Designed all contact and deal properties, pipeline stages, and data architecture. Then engineered 50+ automated workflows covering every lifecycle stage — from first lead to renewal.
Email marketing infrastructure. Configured SPF, DKIM, and DMARC authentication via Postmark. Achieved 98%+ delivery rate. Built behavioral segmentation and lifecycle sequences that hit 40%+ open rates. Connected HubSpot to QuickBooks for automated invoice generation — no more manual billing.
AI-powered customer support. Built a custom RAG (Retrieval-Augmented Generation) AI agent trained on 3 years of Intercom chat history. Connected it to the live website. Reduced manual response time by 70%. Attendees get accurate answers instantly, 24/7.
Multi-channel paid advertising. Set up Google Ads, Facebook Ads, and LinkedIn Ads from scratch. Implemented offline conversion tracking to connect ad spend to actual revenue. Achieved 25–30% ROI improvement quarter over quarter. Generated 500+ qualified leads per month.
SMS + phone automation. Integrated Aircall and Twilio SMS into a unified communication system, increasing conversion rates by 25%.
The Results
- 82% revenue growth — from €1.1M to €2M in under 12 months
- 70% reduction in manual response time through AI automation
- 98%+ email delivery rate — zero spam, consistent inbox placement
- 40%+ email open rates on transactional and lifecycle sequences
- 25% conversion rate increase from multi-channel SMS and phone automation
- 500+ leads/month from Google and Facebook Ads
- 50+ automated workflows replacing hours of daily manual work
What This Means for Your Business
This isn't a one-off project. Every system built here — the CRM architecture, the AI agent, the deliverability infrastructure, the ad tracking — is transferable to any business that deals with clients, leads, and recurring communication.
If your team is spending time on tasks that should be automatic, this is what the solution looks like.
Zyndix had a huge impact on our operations. Abstract reviews that used to take weeks now take days. Invoicing is smooth. Our team can zero in on what's important—putting on top-notch conference events.

Ready to Stop Wasting Time on Repetitive Work?
Let's talk about your business. No pressure. No sales pitch.
