The #1 Choice for
Fast-Scaling Startups
Not a VC.Better.
This isn’t just regular startup funding.
This is a rocket tearing through gravity.
Building Startups
Projects Delivered
A Different Route to Series A
Don’t waste two years going in circles.
Hit product-market fit in six months and start scaling for real.
Your Startup Journey
The VC-funded startup world is a rollercoaster.
But there is another way.
SIROC vs Venture Capital?
No-Brainer
- Smart Capital
- Full-Stack Team
- Growth Strategy
- Weekly Momentum
- Realistic Roadmaps
- Faster Time-to-Market
- Founders Stay Majority Owners
- Operational Support
- 15+ Years Startup Expertise
- 140+ Projects Completed
Venture Capital
- Capital
- Heavy Founder Dilution
- No Team
- Fundraising Games
- Exit Pressure
- Annoying Board Meetings
You bring the domain expertise.
We give you the unfair advantage you need to accelerate, scale, and succeed.
Problems? We’ve Seen Them All
Before
“I outsourced to a cheap dev team in India. Big mistake.”
Hannah Gardner - ProfitTree Co-Founder
After
- Challenged. Then delivered.
- Real product team, not order-takers.
- Fractional co-founders, not freelancers.
- No tech debt bombs later.
Before
“We wasted months building the wrong thing.”
Morten Lave - Joyned CTO
After
- Validated before we built.
- Killed vanity features early.
- Built what users actually want.
- Helped raise Series-A.
Think you’ve got a problem we can’t crack?
Challenge us. Worst case, you’ll get free value.
No-obligation 30-minute diagnostic.
Joan Martin
Leading Product Workshops at SIROC
Before
“It’s been 12 months and we’re still stuck in development.”
Raffael Schulz - Bridify Founder
After
- Cut the noise, speed up execution.
- Focus on product, not tech.
- MVP in weeks, not months.
- Get unstuck and ship faster.
Before
“We’re trapped in endless debates with no clear product direction.“
Mikel Jollett - Chorus Founder
After
- Zero-fluff MVP strategy.
- Built less, delivered more.
- Prioritize with ruthless clarity.
- Launched value, not features.
Still Wondering if We Are the
Right Fit?
VC
Agency
Freelancer
Funding & Risk
Capital
Risk Tolerance
Skin in the Game
VC & Industry Contacts
Startup DNA
Startup Experience
Ability to Innovate & Pivot
Cultural Fit
Execution & Support
Go-to-Market
Talent & Recruiting
Legal/Finance Support
VC
Agency
Freelancer
Funding & Risk
Capital
Risk Tolerance
Skin in the Game
VC & Industry Contacts
Startup DNA
Startup Experience
Ability to Innovate & Pivot
Cultural Fit
Execution & Support
Go-to-Market
Talent & Recruiting
Legal/Finance Support
“SIROC didn’t just help. They owned it. If I have one regret, it’s not finding them earlier.”
Mikel Jollet
Founder of Chorus
Too Good to Be True?
That’s what they thought. Until we got to work together.
"We already had a strong tech team, but working with the guys from SIROC was another level of experience."
Greg Williamson
Engineering Director, Heartflow
“We came in with a prototype. We left with a roadmap, traction, and the confidence to raise our first funding round. It was a huge success.”
Raffael Schulz
Bridify Co-Founder
60%
Increase in ROI with 20x production speed
“After just one hour with SIROC, our product vision was clearer than it had been after a year of internal discussions.”
Timo P Kunz
AudioStack Co-Founder
20x
Sales uplift.
No code required
“We were stuck in endless loops without delivering anything. SIROC got us moving again. Now we ship weekly, learn from users, and actually make progress. Game-changer.”
Hannah Gardner
ProfitTree Co-Founder
Fewer Investments. Better Support.
At SIROC, we don’t take the typical VC approach of backing dozens of startups in hopes of a few wins. Instead, we invest our time and capital into a select group of exceptional founders we truly believe in. And we are relentless in helping them succeed.
Tired of Doing This Alone? Let’s Build TogetherYour Venture-Building A-Team
We’re a 20+ people strong highly skilled team united by a shared mission and powered by a diverse range of expertise.
From deep tech to human psychology.
What We Bring to the Table:Our Services & Value-Add
Tech alone doesn’t create successful startups.
People with a strong product mindset do.
From concept to successful exit. We've done it all.
140+ projects and counting
Build with people who think like founders.
No-obligation 30-minute diagnostic.
Joan Martin
Leading Product Workshops at SIROC
Powerful Network.
Fundraising Simplified
We work closely with top angels and leading VC firms who trust our judgment. When we're committed, it sends a strong signal. Others usually follow.
Sarah Gottwald
Managing Director, BFG
“SIROC isn’t just a partner. They build with founders. Their hands-on approach delivers more value than any VC I’ve worked with. It’s rare to find a team that moves this fast and actually makes things happen.”
Sandro Stark
Partner, Vanagon VC
“What sets SIROC apart is their ability to think like founders. They don’t just support ideas, they challenge them, and bring them to life with incredible speed.”
Enrique Rodriguez
Y Combinator (2x Alumni)
“SIROC is the kind of partner every founder hopes for but rarely finds. They're sharp, fast, and relentlessly focused on what actually moves the needle. Working with them feels like having a co-founder with superpowers.”
But Capital Is Just the Start
We build bridges to key executives in our network, giving you access to the right people at the right time.
“With SIROC, you are not just building faster. You are talking to the right people, sooner. They open doors that matter.”
Benedikt Ess
Partner, Blackster Capital
We Don't Just Back Founders.
We Walk With Them
Most VCs write a check, show up to a few board meetings, and disappear. That’s not how we operate.
We’re in it with you. From the messy first draft of your roadmap to the hard calls on your next hire. This isn’t just funding. It’s a partnership built on sweat, trust, and shared ambition.
Founder Masterminds
Live Q&A Sessions
Founder Retreats
We believe building something meaningful is more than just business. It’s a shared experience.
Get The Founder’s Playbook
Weekly insights from founders who built 140+ products.
What we wish someone had told us before product #10.
Actual frameworks that worked, not just startup clichés.
Stories of going from “dead end” to traction in 30 days.
Lessons from hitting (and missing) product–market fit.
What we changed to launch faster without burning out.
How we built real momentum, not just another MVP.
Join 1,000+ Founders Already Getting Ahead
Questions Smart Founders Ask
What We Do (and Why It’s Different)
We go beyond capital. Our team becomes your hands-on partner across product, design, engineering, and growth. We help you build fast, iterate smart, and scale with confidence, while tapping into our global founder and investor network across San Francisco, London, Berlin, and beyond. You focus on the vision. We handle the execution.
We bring design, engineering, growth, and GTM strategy. But more importantly, we bring clarity on what to build, who to build it for, and how to test it fast. Not just headcount. High-leverage help.
Unlike VCs, we don’t just advise. We roll up our sleeves. From product sprints to user testing, we embed with your team to help build, launch, and iterate. We’re not passive capital. We’re your co-founder. We’re right there with you in the trenches. Not calling the shots from a boardroom.
We’re not anti-VC. Traditional venture capital makes absolute sense when capital is the main constraint. But in the earliest stages, it’s not money that builds a startup. It’s experience and execution. That’s where we come in. We help founders ship product, find traction, and move fast without giving up too much equity too soon. When the time is right, we bring in top-tier VCs to scale. Retain more ownership. Grow faster. Raise when it matters.
Where We Invest
We set up shop in Europe to stay close to global talent and move at startup speed. It’s a strategic hub: affordable, inspirational, innovative, and deeply connected. But we operate without borders. Whether you’re in Berlin, San Francisco, Singapore or Cape Town, we’ve got your back. Global mindset, founder-first approach.
Yes. We’ve partnered with founders in the US, Europe, Asia and Africa. No matter where you’re based, we’re looking for builders ready to challenge the status quo and create global impact. Talent is everywhere. So are we.
Who We Back
You’re likely 30–50, with serious experience in your industry and a sharp eye for opportunity. You understand the problem better than anyone else, and know it needs a technical, product-led solution. If you bring the insight and energy, we’ll bring the team to build it right. We bet on insight, not just ideas.
If you’ve got insight, urgency, and a real pain point to solve, you’re not too early. Whether you’re still validating or already prototyping, we’re interested. We invest before most VCs are comfortable. We back founders, not just traction.
We’re industry-agnostic, but founder-obsessed. If you bring deep domain knowledge and a real pain point to solve, we help you turn it into a scalable product. Our focus isn’t on spraying capital, we co-build with a few high-potential founders and move fast from idea to traction. We’re not your typical VC. We’re your unfair advantage.
How We Work With You
We get involved where it matters most. Need a product sprint? We’re in. Need room to execute? We’ll step back. We’re not micro-managers, we’re co-creators. Our support adapts to what your company truly needs to grow. Support when you need it. Space when you don’t.
We stay in the trenches until your product finds momentum and you're ready to scale. Then we help you raise, hire, and grow. Our goal is to get you to the next stage, fast. From zero to traction. Then we help you scale.