This company has shut down. Carbon is no longer operating — its last tracked round was a Seed in 2023.
Explore the Startup GraveyardCarbon is a universal retrieval engine for LLMs to access unstructured data from any source.
Carbon has raised $1.3M in total funding. The most recent round was Seed. The last funding was announced in December 2023.
Carbon's investors include MKT1 Capital, Treble.
Carbon is headquartered in Seattle, United States.
Carbon is a universal retrieval engine for LLMs to access unstructured data from any source.
Carbon is at the Seed stage.
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"Carbon — Funding & Investors." VCBacked, December 8, 2023, https://www.vcbacked.co/company/carbon-seattle. Accessed October 22, 2026.
VCBacked. (2023). Carbon — Funding & Investors. Retrieved October 22, 2026, from https://www.vcbacked.co/company/carbon-seattle
{{cite web |title=Carbon — Funding & Investors |url=https://www.vcbacked.co/company/carbon-seattle |website=VCBacked |access-date=October 22, 2026}}Profile data sourced and verified per the VCbacked methodology · Last funding round dated