About Greelow
A team. Not a scale pitch.
Greelow is a nearshore software development agency, founded in 2013 in Buenos Aires with a US LLC in Miami since 2020. We work with US and Canadian teams on staff augmentation, and with LATAM enterprises, PyMEs, and founders on full-cycle software — MVPs, agentic systems, modernization, and e-commerce.
Our story
How we got here
We started in Buenos Aires in 2013 as a small engineering operation. In the early years we worked with Argentine and Latin-American startups on MVPs, first production versions, and the iteration cycle after that. Most of the original team is still with us today.
In 2020 we formed the US LLC in Miami and began serving US clients through staff augmentation. That is now one of three pillars of the company. The other two: a software factory for LATAM PyMEs and regional corporates, and agentic consulting for clients who need AI in production with the compliance conversation resolved first.
In 2024 we formally pivoted toward agentic. Our reference case — a multi-tenant agentic operating system we shipped for a private-markets firm, in production for three quarters at time of writing — is the architectural reference we use with every subsequent enterprise engagement.
Leadership
The team you meet on the first call

Javier Holcman
CEO & Co-founder · Fractional CTO
10+ years leading software teams. Co-founded Greelow in 2013. Fractional CTO for several LATAM startups and corporates. First call on every new engagement.
LinkedIn →
Leonardo Holcman
Co-founder & Engineering Manager
Mobile & full-stack expert. Led delivery of 50+ products across fintech, healthcare, and consumer apps. The human knowledge base of Greelow.
LinkedIn →
Nicolás Middi
Chief AI Officer
AI/ML architect driving AI-native workflows. Architect on our agentic operating system for a private-markets firm — three quarters in production. Technical lead on our largest enterprise accounts.
LinkedIn →
Andrea Janna
Head of HR
Manages talent acquisition and retention across the 40-person distributed team. Built the vetting process that keeps only the top 3%.
LinkedIn →
Romina Komarovsky
Head of Finance
Oversees contracts, payroll, and compliance across US and LATAM operations. One invoice, zero surprises.
LinkedIn →Where we are
Offices
Operational HQ
Buenos Aires
Av. Corrientes 3360, CABA, Argentina
US LLC
Miami
18246 Collins Avenue, Sunny Isles Beach, FL 33160, USA
Greelow in Numbers
10+
Years in Business
50+
Products Delivered
98%
Client Retention
3+
Years Avg Partnership
Common questions
- Greelow operates from Buenos Aires, Argentina, where the engineering and delivery team works. The company has a US legal entity — Greelow LLC — registered in Florida, which is the entity US clients sign and pay against. The engineering team operates on US business hours, with Buenos Aires sitting one hour ahead of Eastern Time.