Companies in the directory

About

Built from Chapel Hill by Adam Schifferdecker.

When I got here, I had no working map of who was building what. The information lived in LinkedIn posts, GrepBeat archives, founder DMs, Tweener Times, event notes, and company pages.

This is the record I wanted then: company profiles, founder records, funding rounds, source notes, and signal logs when something actually happens.

My background sits between operator and builder: marketplace operations, AI-native software, and the habit of turning messy conversations into source-backed records.

Operating manual

Every page names its sources and what is still missing.

Unknown values render as a dash, never as a guess.

Corrections land on the record they fix.

Send one from the footer of any page.

No one can buy a listing, a tier, or a correction.

Partner placement and future paid surfaces will not change that.

Read the full Operating Manual

Founders

All founders

All companies

280 tracked
374Water

374Water

Morrisville · —

410 Medical

410 Medical

Durham · Growth

5

5Metis

Durham · Grant

Abrigo

Abrigo

Raleigh · —

Adwerx

Adwerx

Durham · Series A

A

Aer Therapeutics

Raleigh · —

AIXI

AIXI

Raleigh · —

A

AllStacks

Raleigh · —

Altis Biosystems

Altis Biosystems

Durham · Seed

Arbiom

Arbiom

Durham · Growth

From LinkedIn

Today, information on startups in the Triangle is exclusive, scattered, and paywalled. Triangle Startups lets founders, operators, and the startup-curious research and connect with startups here. The platform includes a database you can query in natural language, an event calendar that pulls from 20+ sources, and editorial that covers what companies are building.

If you're a founder building in the Triangle, we should already have your company in the database. I'd love to make sure we got it right. If you're an operator or builder who's been watching this space, I'd love to hear what you think.

Reach me at adam@triangle-startups.com.

View full post on LinkedIn →