Day

Day.ai combines the features of a Meeting Assistant, CRM, and Knowledge Base into a single unified solution that replaces the manual, complicated interfaces of legacy CRM, and keeps you connected to what customers want.

Sales and marketing Media and content

Latest funding

$20M Series A · February 2, 2026

Led by Sequoia · Source: upstartsmedia.com

Funding history ↓

Website: day.ai.

X: @Day_ai_app · 1,263 followers.

GitHub: day-ai.

LinkedIn: day-ai.

Categories: Sales and marketing Media and content.

Stage: Series A.

Based in: San Francisco, United States.

Last round: Feb 2, 2026 · 286 days ago.

On Recent Funding since: Sep 29, 2026.

Signals

X account@Day_ai_app · created May 11, 2023 (3 years old) · 1,263 followers

Website registeredDec 16, 2017 (8 years old)

Funding rounds

Date	Round	Amount	Lead	Source
Feb 2, 2026	Series A	$20M	SSequoia	upstartsmedia.com

Timeline

May 11, 2023
X account created
December 16, 2017
Website created

Founders and team

CO
Christopher O'Donnell Founder & CEO

LinkedIn · source: day.ai

Investors

Companies like Day

PProcuros$22.41M Series A · Oct 2026
JJump AI$80M Series B+ · Feb 2026
MMem$24M Series A · Nov 2022
TTactiq
SSlite
SSupabaseSeries B+ · Oct 2026

Other companies backed by Sequoia

RRigi$1.06M Series A · Nov 2026
QQ-CTRL$290M Series B+ · Nov 2026
LLangChain$300M Series B+ · Nov 2026
NNominal$240M Series B+ · Nov 2026
BBlockaid$40M Series B+ · Nov 2026
TTraversal$120M Series B+ · Nov 2026

Sequoia portfolio →

Sources and API

Every amount links to the page it came from. * Estimated from an accelerator's published standard deal, not a company-specific disclosure. How Recent Funding sources and verifies funding data. The same data as JSON: /api/v1/companies/day (get a free API key).