The AI Workforce for Local Service Businesses.
Built by an operator. Run for business owners who are tired of stitching it all together themselves.
Meet the AI Workforce for Local Businesses
Most service businesses hit the same wall. The phones ring more than the team can answer. Reviews sit at 4.1 stars and quietly kill conversions. Quotes go cold because nobody followed up. The fix used to be hiring another person. That math stopped working.
Crew Stack staffs your business with AI workers instead. A receptionist that answers every call. A reputation specialist that chases every review. A sales assistant that follows up on every quote. Each one is built, deployed, and managed by our team, so you get the output of a five-person operations crew without the payroll.
We work with the businesses that actually keep neighborhoods running. HVAC operators, plumbers, electricians, dentists, med spas, law firms, accounting practices, real estate teams.
One agency. Every front-line job covered. Built for businesses that need to grow without growing the payroll.
Built by Warigo.
Crew Stack is built and run by Warigo Nganga. For 15 years I ran customer operations at software companies that served the biggest names in retail, banking, and healthcare — Walmart, Target, Bank of America, JPMorgan Chase, and others you'd recognize.
My job was simple: keep them happy enough to keep paying. Hundreds of millions of dollars depended on it. Now I run the same playbook for the businesses that actually keep neighborhoods running.
What this means for your business:
- ✓You stop losing jobs to the competitor whose phone gets answered first. I spent 15 years making sure Fortune 500 customers never had to wait. Aria does the same for yours.
- ✓You stop watching 4.1 stars on Google quietly kill your conversion. I rebuilt how 100+ companies handle customer reputation. Same fix, smaller scale.
- ✓You stop wondering if last Tuesday's lead ever got called back. The follow-up systems Bank of America paid for now run in the background of a 5-truck HVAC shop.
- ✓You stop juggling six vendors, four logins, and three apps just to run your front office. One agency. One retainer. Done.
The systems Walmart and Chase paid six figures for, sized down to fit a 5-truck HVAC operation or a 3-chair dental practice. Same infrastructure. Same reliability. Built for the businesses that don't get six-figure software budgets.
A few things worth knowing:
- • MBA, Entrepreneurship — Babson College
- • Top 50 AI Leader in Customer Experience — 2026
- • CPD-accredited AI Consultant — 2026
- • 15+ years in Fortune 500 software ops
Based in Houston / Fulshear, TX. Serving service businesses across the U.S.