Founded — 2021

87 startups founded in 2021

Every startup in our index founded in 2021. Browse founders, investors, location, and product details.

NE
Neon
Serverless Postgres with branching.
Dev Tools
MD
Modal
Run any Python code in the cloud, instantly.
Dev Tools
CL
Cal.com
Open-source scheduling infrastructure.
Open Source
BH
Beehiiv
The newsletter platform built for growth.
SaaS
ME
Magic Eden
The leading multi-chain NFT marketplace.
Marketplace
FN
Function Health
100+ lab tests, twice a year.
Other
NU
Nourish
Insurance-covered nutritional counseling.
Other
CD
Codeium
AI-powered code acceleration.
AI
ST
Statsig
Feature flags, experiments, and analytics in one platform.
SaaS
CX
Convex
The backend for app developers.
Dev Tools
IN
Inngest
Durable execution + workflow orchestration for developers.
Dev Tools
MI
Mintlify
Documentation that converts.
SaaS
CO
Column
The first developer-first bank.
Fintech
SZ
SigNoz
Open-source APM, logs, traces, metrics.
Open Source
CR
Cradle Bio
AI for protein engineering.
Other
LU
Luma AI
Multimodal AI for video and 3D.
AI
LA
Lakera
Security for LLM apps.
AI
LB
Liveblocks
Multiplayer infrastructure for collaborative apps.
Dev Tools
PM
Permit.io
Authorization as a service.
Dev Tools
TD
tldraw
Build whiteboards into your product.
Open Source
MD
Medusa
Open-source headless commerce platform.
Open Source
NC
NocoDB
The open-source Airtable alternative.
Open Source
IS
Impulse Space
In-space transportation for the next era.
Other
QN
Quantinuum
Full-stack quantum computing — Honeywell + Cambridge Quantum merger.
Other
JR
Jasper
AI copilot for marketing teams.
AI
AT
Attention
AI sales coach + assistant for sales reps.
AI
NV
Novu
Open-source notification infrastructure for developers
Dev Tools
RG
Rogo
Generative AI for investment banking
Fintech
ES
ElectricSQL
Local-first sync engine for Postgres applications
Dev Tools
QD
Qdrant
High-performance vector search engine
AI
SK
Socket
Supply chain security for open source dependencies
Dev Tools
EV
Evidence
Open source business intelligence with Markdown and SQL
Dev Tools
LG
Lago
Open source billing and metering for usage-based pricing
Fintech
RA
Recall AI
Universal API to capture data from any meeting
AI
JM
Jam
One-click bug reports that developers actually love
Dev Tools
IM
Imbue
Building AI agents that can reason and code
AI
CA
Coactive AI
AI platform for searching and understanding visual data
AI
CL
Cleanlab
AI data quality platform for trustworthy training data
AI
ZP
Zuplo
Programmable API gateway for developer teams
Dev Tools
SS
SST
Infrastructure framework for full-stack serverless apps
Dev Tools
EN
Encore
Developer-first backend framework with built-in infra
Dev Tools
GB
Grafbase
GraphQL platform with edge caching and federation
Dev Tools
TB
Typebot
Open source chatbot builder with powerful logic
SaaS
HL
Humanloop
Prompt management and LLM evaluation platform
AI
HU
Hume AI
Empathic voice AI that understands human expression
AI
CB
Cerbos
Open-source authorisation layer for any stack
Dev Tools
BS
Better Stack
Uptime monitoring, logs, and incident management
Dev Tools
KN
Knock
Flexible notification infrastructure for developers
Dev Tools
TA
Tauri
Build smaller, faster, more secure desktop apps
Dev Tools
WG
WunderGraph
API integration platform and GraphQL federation
Dev Tools
FK
Folk
The CRM for all your relationships
SaaS
IN
Instantly
Cold email platform with unlimited sending accounts
SaaS
RF
Reflect
Networked note-taking app for fast thinkers
SaaS
TN
Tana
All-in-one knowledge management for power users
SaaS
AF
AFFiNE
Open-source Notion and Miro alternative
SaaS
SG
Stigg
Product-led billing infrastructure
Fintech
OB
Orb
Usage-based billing infrastructure for SaaS
Fintech
SL
Slope
B2B buy-now-pay-later payments
Fintech
ES
Escape
API security testing and DAST for developers
Dev Tools
TW
Triple Whale
Ecommerce analytics and attribution platform
SaaS
LD
Lightdash
Open-source BI on top of dbt
SaaS
NL
NewLimit
Reversing biological aging with epigenetics
AI
CO
Colossal Biosciences
Bringing extinct species back to life
AI
EL
Elicit
AI research assistant for scientific literature
AI
HL
Halcyon
The only platform purpose-built to defeat ransomware
Dev Tools
LE
Leland
Get coaching from experts who've been where you want to go
SaaS
PL
Pallet
AI workers that handle freight operations end-to-end
SaaS
FN
Fun
Global stablecoin payments for modern fintechs
Fintech
WD
Wander
Luxury smart home rentals with hotel-level service
Marketplace
PS
Palmstreet
Buy rare plants live from expert sellers
Marketplace
AM
Amie
The joyful productivity app
SaaS
RZ
Row Zero
The fastest spreadsheet in the browser
SaaS
MW
Meow
High-yield treasury management for startups
Fintech
SR
SurrealDB
The ultimate multi-model database
Open Source
RW
RisingWave
Streaming SQL for real-time analytics
Open Source
OR
OpenReplay
Open source session replay and debugging suite
Open Source
CF
Coolify
Self-host Heroku and Netlify on your own server
Open Source
BB
Bytebase
Database DevOps and CI/CD for teams
Open Source
AF
AppFlowy
Open source Notion alternative
Open Source
NN
Notesnook
End-to-end encrypted notes app
Open Source
ME
Memos
Lightweight, self-hosted memo hub
Open Source
OB
OpenBB
Open source investment research terminal
Open Source
MS
Mathesar
Database UI as intuitive as a spreadsheet
Open Source
OM
OpenMetadata
Open standard for metadata and data discovery
Open Source
SP
Steampipe
SQL for cloud APIs and infrastructure
Open Source
RL
Rallly
Open source scheduling and meeting polls
Open Source
FZ
Firezone
Open source WireGuard-based VPN and access gateway
Open Source