CRITICAL SERVICES GROUP
Investing in businesses that keep the world running
We partner with founders who've built the companies the world depends on, helping them grow faster with less risk.
OUR MISSION
Your business is essential. We treat it that way.
We invest in the businesses that keep industries moving and modern life running. Selling to us means partnering with people who understand both the value of what you’ve built and the responsibility of carrying it forward.
We bring decades of experience in service businesses, from managing distributed workforces to safeguarding quality across locations and sustaining customer relationships that last generations. We know your company isn’t software startup or aconsumer brand - you need a different approach, and that’s exactly what we deliver.
CHOOSE US
Why partner with us?
We believe lasting partnerships are built on trust, expertise, and a shared vision for the future. Our approach is different. We don’t chase quick exits or short-term gains. Instead, we focus on building enduring companies that create real value for employees, customers, and communities.
Permanent capital
No fund life, no forced sale. We hold great companies forever, allowing them to grow without the pressure of artificial deadlines.
Entrepreneurs first
We’re operators and builders, not financial engineers. Our team understands what it takes to start, scale, and sustain a business.
Focused expertise
Mission-critical, technician-led B2B services are all we do. This deep focus means we know the industries, the challenges, and the opportunities that matter most.
Shared success
We welcome meaningful roll-over, aligning incentives for long-term value. When our partners win, we win.
OUR EXPERTISE
Where we focus
We invest in founder-led, mission-critical service companies - businesses that keep industries moving and modern life running. Today our focus includes elevator maintenance, business jet MRO, and network infrastructure, with future expansion in related technical trades. What they all share: essential services, decades-long customer relationships, and teams built on skill and trust.
Hear from our board
Guided by experience
"I’m excited to support CSG as it scales and strengthens its ISP portfolio, and to bring 15 years of ownership experience in the cell tower and DAS industry. CSG’s long-term partnership model aligns with my personal philosophy as an owner-operator. Our sector is evolving rapidly, and winning requires more than capital — it demands operational depth, customer focus, and decisive execution. I help CSG back exceptional management teams that drive innovation, accelerate greenfield growth, and deliver real value for the customers and communities they serve. "
José Stella, Board Member
Founder & CEO, QMC Telecom
