Top accelerator startups

Startups14,448Programs29

14,448 startups · 29 programs

Tesser

Active · Seamless cloud dev environments

WebsiteYC profile

Why it ranks

How the rank works
4signal of 100 · rising 4
  • went through YCProgram · this site+4

A sum of public facts, not a judgement and not investment advice.

Competitors

AIInactiveCoastsShared: development runtime, run multiple, coding agentYC F25Startup →Developer toolsOktetoShared: cloud development, environment, developerYC W19San FranciscoStartup →AIOcoderShared: dev environment, coding, sharespeedrun SR005San FranciscoStartup →Developer toolsInactiveCakeworkShared: dev environment, cloud, infrastructureYC W23SeattleStartup →AISpecificShared: coding agent, cloud, environmentYC F25StockholmStartup →
Companies closest to Tesser
Company
CoastsShared: development runtime, run multiple, coding agentYC F25InactiveAI, Devtools
OktetoShared: cloud development, environment, developerYC W19ActiveDevtools
OcoderShared: dev environment, coding, sharespeedrun SR005Not statedAI, Devtools
CakeworkShared: dev environment, cloud, infrastructureYC W23InactiveDevtools
SpecificShared: coding agent, cloud, environmentYC F25ActiveAI, Devtools

Adjacent

OtherCraftingShared: cloud development, preview, environment500 Global 2022United StatesStartup →Developer toolsExpoShared: lets developer, cloud, developmentYC S16San FranciscoStartup →AIKorsoShared: development, infrastructureYC X26IrvineStartup →AICautionShared: lets developer, runtime, cloudYC S26George TownStartup →AISparklesShared: isolated cloud, coding agent, runYC W26LondonStartup →
Companies next to Tesser
Company
CraftingShared: cloud development, preview, environment500 Global 2022 +1Not statedOther
ExpoShared: lets developer, cloud, developmentYC S16 +1ActiveDevtools
KorsoShared: development, infrastructureYC X26ActiveAI, Devtools
CautionShared: lets developer, runtime, cloudYC S26ActiveAI, Devtools
SparklesShared: isolated cloud, coding agent, runYC W26ActiveAI, Devtools

Also from W27 in AI

All of W27
AIXuluxPrepare your devtool for agentsYC W27San FranciscoStartup →AILinkLaneAI-powered freight brokerage. Quote, book, and track loads in seconds.YC W27San FranciscoStartup →AILuceboxSelf-improving inference workstationYC W27MilanStartup →AIPlyxlThe workspace that does the workYC W27Startup →AIRoteAI-native insurance department for auto body shopsYC W27San FranciscoStartup →
Company
XuluxPrepare your devtool for agentsteam of 2ActiveAI, Devtools
LinkLaneAI-powered freight brokerage. Quote, book, and track loads in seconds.team of 2ActiveAI
LuceboxSelf-improving inference workstationteam of 2hiringActiveAI, Devtools
PlyxlThe workspace that does the workteam of 4ActiveAI
RoteAI-native insurance department for auto body shopsActiveAI

Founders

  • Jeffrey LinFounder/CEO
  • Rohan GodhaFounder/CTO

About Tesser

Tesser is a cloud development runtime that lets developers run multiple dev environments in parallel without overloading their laptops. Our CLI moves workloads like servers, builds, tests, and typechecking to isolated cloud machines while developers continue using their existing editors and coding agents. Tesser handles provisioning, networking, and port forwarding. Teams can access each other's environments through our gateway, share live previews, and run Tesser on our infrastructure or their own cloud (BYOC).

YC batch
W27 · Winter 2027
Status, per YC
Active
Category
AI, Developer tools
Checked
6h ago

YC tags: Developer Tools

Changes seen

One-linerOct 29, 2026

Rewrote its one-liner; it read "The modern development runtime"

Source ↗
Joined a programOct 26, 2026

Joined Y Combinator's Winter 2027 batch (W27).

Source ↗

Tesser in W27: 9 companies, 67% AI

LinkedIn

Tesser: questions

Which YC batch was Tesser in?

Tesser was in Y Combinator's Winter 2027 batch (W27).

Is Tesser still active?

Y Combinator lists Tesser as active.

Who founded Tesser?

Tesser's founders, as listed on its YC page: Jeffrey Lin (Founder/CEO), Rohan Godha (Founder/CTO).