Mainframe
Mainframe wants to redefine human-computer interaction with a future operating system where agents are the new apps. Founded by Jordan Singer, who sold his last startup Diagram to Figma.
- Location
- San Francisco, United States, United States
- Founded
- 2020
- Category
- Dev Tools
- Funding
- VC-backed
- Team
- 1–10
Frequently asked questions
What does Mainframe do?
Mainframe wants to redefine human-computer interaction with a future operating system where agents are the new apps. Founded by Jordan Singer, who sold his last startup Diagram to Figma.
Where is Mainframe based?
Mainframe is based in San Francisco, United States, United States.
When was Mainframe founded?
Mainframe was founded in 2020.
How much has Mainframe raised?
Mainframe is vc-backed. Funding details have not been disclosed.
How Mainframe would pitch themselves
○ Auto-generated01Target customer
Software engineers + DevOps teams shipping production systems — from indie hackers to enterprise platform teams at scale.
02Problem they solve
Mainframe wants to redefine human-computer interaction with a future operating system where agents are the new apps. Founded by Jordan Singer, who sold his last startup Diagram to Figma. The category has historically been served by tools that miss the modern workflow this product is built around.
03Key differentiator
Mainframe differentiates on generative computing — focusing on a specific edge in this category vs. broader incumbents.
04Go-to-market strategy
Early-stage GTM — typically product-led growth (free tier or low-friction onboarding) paired with founder-led sales for the first 100 customers. Heavy content marketing + community presence on Twitter/X, LinkedIn, and category-specific Slack groups.