DONATAS SIMKUS
Results that speak
Key achievements across B2B, SaaS, FinTech, and Blockchain companies.
$3.3B
IPO Campaign Led
Led Phoenix Group's $3.3B IPO campaign with 180x retail oversubscription and 50% share price increase.
23K+
Qualified Leads
Generated 23K+ qualified leads through AI-driven pipeline automation at Growth Ninja Group.
180x
IPO Oversubscription
Phoenix Group's IPO saw 180x oversubscription from retail investors.
$164M
Funding Supported
Part of growth through Series B and C funding rounds totalling $164M across multiple startups.
2,000+
Clients Onboarded
Onboarded 2,000+ global accountants in 12 months at Koinly through growth experimentation.
$2M+
ARR from ABM
Secured 5 enterprise wins worth $2M+ in ARR through strategic ABM program at parcelLab.
What I do
Core areas built over a decade of hands-on growth marketing, now accelerated with AI.
AI-Powered Growth
Applying AI to accelerate campaigns, content production, and experimentation cycles across B2B, SaaS, FinTech, and Blockchain.
Marketing Automation
Building CRM workflows, data pipelines, and automated reporting systems that align marketing ops with business goals.
Digital Transformation
Modernizing go-to-market processes with AI-native tools: lead scoring, attribution, content, and outreach.
Rapid Experimentation
Running high-velocity growth sprints to test ideas fast, learn from data, and double down on what works.
Companies I've worked with
What people say
What people say about working with me.
"He is one of the sharpest growth and marketing professionals I've worked with. His ability to build robust, AI-driven pipelines for lead generation and awareness was one of the most impressive growth plans I've seen."
Raj Vaswani
AI Product at ai71
"I have worked with Donatas in multiple different roles. His work was impeccable and his attention to detail has been amazing. He led a team to develop, implement and launch a whole sub-business of Phoenix, very successfully. He is my go to for growth. I can't recommend him highly enough."
Carl Agren
Technology Executive, Blockchain/AI
"He brought a rare combination of strategic clarity and executional precision to every conversation, distilling complex growth challenges into clear, actionable priorities. Donatas doesn't just talk growth. He builds it, scales it, and optimizes it."
Cathal Burke
Director of Communications and Marketing, VARA
"Donatas is a talented and ambitious Growth Marketer and an invaluable member of any team. He has the ability to fine-tune a campaign to perfection. He is an intelligent, results driven professional who really takes ownership of any project. His work ethic is second to none."
Sarah Aird-Mash
CMO, ex-Google, ex-eBay
"I have seen Donni grow in his role as the Head of Growth. He has developed a deep understanding of growth marketing and has become an expert in using data-driven strategies to achieve desired outcomes."
Anton Eder
Co-Founder & COO at parcelLab
"Donatas is a great manager and team player but most importantly an awesome executor. The Growth experiments were executed flawlessly and the reporting on the success/learnings of these experiments was superb."
Sachin Pabari
VP of Operations at Koinly
"He is a fast learner and a hustler which allowed him to progress quite impressively. Moving into the marketing team raising the company's bar in digital marketing. Great guy to have around."
Bassel El Koussa
Co-Founder & CEO at Quiqup