175 个 YC Open Source 初创公司

在 YC 自己的目录中，自 2005 年以来，有 175 家 Y Combinator 公司带有 Open Source 标签。每一行显示公司做什么、所在期、总部和状态，并链接到以真实形式重建的 YC 申请，以便创始人可以阅读被录取的公司如何回答相同的问题。

最后更新于 2026年9月28日

公司: 175
顶级行业: B2B, Consumer and Healthcare
顶级地点: San Francisco, New York and London
YC 顶级公司: 2

175 份重建申请

阅读全部 175 家公司的 YC 申请

所有公司的 YC 申请，已按原样重建
按行业、国家和团队规模筛选所有期别
然后找到投资你这类初创公司的投资人

打开 YC Insights

前 100 家公司，按顶尖公司排序

#公司批次总部状态申请

1

CoreOS顶尖Open source tools of modern distributed systems.Summer 2013San Francisco, CAAcquired

2

GitLab顶尖A complete DevOps platform delivered as a single application.Winter 2015San Francisco, CAPublic

3

ActiveloopDatabase for AISummer 2018Mountain View, CAActive

4

ActivepiecesOpen-source, AI-first and no-code business automation toolSummer 2022San Francisco, CAActive

5

AirbyteContext layer for production-grade AI agentsWinter 2020San Francisco, CAActive

6

AlokaiFrontend Platform for eCommerceWinter 2021Warsaw, Masovian Voivodeship, PolandActive

7

AnythingLLMBuilding the definitive all-in-one on-device AI productivity toolSummer 2022Los Angeles, CAActive

8

ApolloApollo helps engineering teams accelerate deliverySummer 2011San Francisco, CAActive

9

ArroyoCloud-native stream processingWinter 2023Berkeley, CAAcquired

10

ArtilleryThe complete production quality platform. AI-powered E2E testing,…Summer 2021Limerick, County Limerick, IrelandActive

这是 10 / 175。

下面每家公司都在 YC Insights 中重构了其 YC 申请。创建免费账户即可阅读全部内容。

阅读全部 175 份申请

11

authzedCloud Infrastructure for AuthorizationWinter 2021New York, NYActive

12

BeamAI-Native Cloud PlatformWinter 2022New York, NYActive

13

Better AuthThe authentication framework for TypeScriptSpring 2025San Francisco, CAActive

14

BotCityObservability and Governance for AI-Generated Python scripts.Winter 2022San Francisco, CAActive

15

Browser UseLeading open-source web agent project with 50k stars in 3 monthsWinter 2025San Francisco, CAActive

16

BunBun is an incredibly fast all-in-one JavaScript toolkitSummer 2019San Francisco, CAAcquired

17

CactusLow-latency AI engine for mobile devices & wearablesSummer 2025San Francisco, CAActive

18

Chaos GeniusDataOps Observability Platform for SnowflakeWinter 2020Bengaluru, IndiaAcquired

19

CharThe AI notepad that knows and works for youSummer 2025San Francisco, CAActive

20

ChatwootThe modern, open source, self-hosted AI customer support platformWinter 2021San Francisco, CAActive

21

Citus DataReal-time. Big data. PostgreSQLSummer 2011San Francisco, CAAcquired

22

ClawvisorThe Authorization Layer for AI AgentsSpring 2026San Francisco, CAActive

23

CodeStreamCodeStream is a Developer Collaboration Platform designed to…Winter 2018New York, NYAcquired

24

Common PaperThe SAFE for commercial contractsWinter 2023Philadelphia, PAActive

25

Confident AIThe LLM Eval and Observability Platform for AI QualityWinter 2025San Francisco, CAActive

26

ConvoyWebhooks Gateway for outgoing and incoming webhooks.Winter 2022London, United KingdomActive

27

CorsairIntegration Layer for AI AgentsWinter 2025New York, NYActive

28

CuaGive every agent a cloud desktopSpring 2025San Francisco, CAActive

29

DAGWorks Inc.Open source tools & services for reliable AI Agents & AI ApplicationsWinter 2023San Francisco, CAAcquired

30

DailyConversational Voice and Multimodal AI built with Open SourceWinter 2016San Francisco, CAActive

31

Data MechanicsSpark-on-Kubernetes Data Engineering PlatformSummer 2019Paris, Île-de-France, FranceAcquired

32

Dench.comOpen Source AI CRM built on top of OpenClawSummer 2024San Francisco, CAActive

33

DittofeedOpen-source customer engagement & messaging automationSummer 2022Los Angeles, CAActive

34

DockerSoftware development platform.Summer 2010San Francisco, CAActive

35

ElementaryOpen-source data observability for data teamsWinter 2022Tel Aviv-Yafo, Tel Aviv District, IsraelActive

36

EmbraceModern user-focused observability built on OpenTelemetrySummer 2019Los Angeles, CAActive

37

EnsoSelf-Service Data Prep and Blend Built for Data Teams.Summer 2021Kraków, Lesser Poland Voivodeship, PolandActive

38

EpicenterChatGPT's memory feature in an open, portable formatSummer 2025San Francisco, CAActive

39

Evidently AIOpen-source monitoring for machine learning modelsSummer 2021London, United KingdomActive

40

Expected ParrotSimulate your customers with AI agentsFall 2025Cambridge, MAActive

41

FernInstantly offer SDKs and API DocsWinter 2023New York, NYAcquired

42

FigFig adds visual apps, shortcuts, and autocomplete to your terminal.Summer 2020San Francisco, CAAcquired

43

FirecrawlThe API to search, scrape, and interact with the web at scale. 🔥Summer 2022San Francisco, CAActive

44

FirezoneEasiest way to set up Zero Trust Access for your teamWinter 2022San Francisco, CAActive

45

FlowiseAIOpen source GenAI development platformSummer 2023RemoteAcquired

46

Font AwesomeIcons and social logos for your website.Summer 2015Bentonville, ARActive

47

FormanceOpen Source Infrastructure for the Financial InternetSummer 2021Paris, Île-de-France, FranceActive

48

FreestyleWe run and deploy code your AI wroteSummer 2024San Francisco, CAActive

49

GraiOpen source version control for metadataSummer 2022San Francisco, CAInactive

50

Graphify LabsOn-device Knowledge Graph engine for Enterprise CodebasesSummer 2026San Francisco, CAActive

51

GrowthBookOpen source feature flagging and A/B testingWinter 2022Palo Alto, CAActive

52

HatchetThe orchestration platform for teams who ship.Winter 2024New York, NYActive

53

HeliconeLLM Observability for DevelopersWinter 2023San Francisco, CAAcquired

54

HelixDBThe fastest & most scalable graph-vector database on the marketSpring 2025London, England, United KingdomActive

55

highlight.ioThe open source, fullstack monitoring platform: stop guessing why…Winter 2023Seattle, WAAcquired

56

HydraServerless Analytics on PostgresWinter 2022San Francisco, CAAcquired

57

HyperDXOpen-source, dev-friendly observability.Summer 2022San Mateo, CAAcquired

58

InfisicalUnified platform for secrets, certs, and privileged access managementWinter 2023San Francisco, CAActive

59

InfluxDataThe platform for building and operating time series applications.Winter 2013New York City, NYActive

60

$Infracost$

InfracostShift FinOps Left: Proactively Find & Fix Cloud Cost IssuesWinter 2021RemoteActive

61

InsForgeThe agent-native cloud infrastructure platformSpring 2026San Francisco, CAActive

62

InthPrivacy compliance, enforced in codeSpring 2026London, England, United KingdomActive

63

JitsuCapture Event Data into Your StackSummer 2020New York City, NYActive

64

KaelioThe open-source context layer for data agentsSpring 2025Active

65

KeepThe open-source AIOps platformWinter 2023Tel Aviv-Yafo, Tel Aviv District, IsraelAcquired

66

KeyDBThe only database you'll ever needSummer 2020Toronto, ON, CanadaAcquired

67

KhojAI for humansSummer 2023San Francisco, CAActive

68

KV CashKV Cash, a blockchain where contracts can finally thinkWinter 2023San Francisco, CAActive

69

LagoThe AI Native Billing PlatformSummer 2021San Francisco, CAActive

70

LaminOpen data lakehouse for biologySummer 2022Active

71

LanceDBOpen-source, serverless vectordb for production-scale generative AIWinter 2022San Francisco, CAActive

72

LangfuseOpen source LLM engineering platformWinter 2023Berlin, Berlin, GermanyAcquired

73

LanternPostgres vector database extension to build AI applicationsWinter 2024San Francisco, CAInactive

74

LaudspeakerOpen source mobile marketing platform. Alternative to appcues /…Winter 2021Mountain View, CAAcquired

75

LightdashThe open source Looker alternativeSummer 2020London, England, United KingdomActive

76

LiteLLMCall every LLM API like it's OpenAI [100+ LLMs]Winter 2023San Francisco, CAActive

77

LotusOpen-Core Pricing and Billing EngineSummer 2022New York, NYInactive

78

LunaSecAn Open Source dependency security tool that is smarter than the restSummer 2019Seattle, WAInactive

79

LunaticOperating System for server-side appsWinter 2021Vienna, Vienna, AustriaInactive

80

MagnitudeThe best coding agent for open modelsSummer 2025San Francisco, CAActive

81

ManaflowBuilding the open-source terminal for coding agentsSummer 2024San Francisco, CAActive

82

Manufact (formerly mcp-use)Open source SDK & cloud infrastructure for MCP Servers & ChatGPT AppsSummer 2025San Francisco, CAActive

83

MastraThe Javascript framework for building AI agents, from the Gatsby devsWinter 2025San Francisco, CAActive

84

MatanoCloud Native SIEM (alternative to Splunk/Elastic)Winter 2023Seattle, WAActive

85

MattermostSecure Collaboration for Technical TeamsSummer 2012Palo Alto, CAActive

86

MedplumAPI first electronic health record (EHR) that is open sourceSummer 2022San Francisco, CAActive

87

Mem0The Memory layer for AI AgentsSummer 2024San Francisco, CAActive

88

MentraBuilding the open source smart glasses operating system.Winter 2025San Francisco, CAActive

89

MindsDBConnect, Unify, Respond to any data, anywhere with human-level…Winter 2020San Francisco, CAActive

90

MistleOpen source background agentsSummer 2022Singapore, SingaporeActive

91

MitoCursor for data analysisSummer 2020New York, NYActive

92

MonosiOpen Source Data ObservabilitySummer 2020San Francisco, CAInactive

93

moonrepoOpen source build tool for monorepos and large codebasesWinter 2023Portland, ORInactive

94

MorphikOpen-source multimodal search for AI appsSpring 2025San Francisco, CAActive

95

NangoA single API for all your integrationsWinter 2023San Francisco, CAActive

96

nao LabsOpen Source Analytics AgentSpring 2025San Francisco, CAActive

97

nCompass TechnologiesOptimize performance on GPUs - 10x fasterWinter 2024New York, NYActive

98

NetmakerAutomated WireGuard networks for distributed systems and KubernetesWinter 2022Asheville, NCActive

99

OktetoCloud Development Environments with one clickWinter 2019San Francisco, CAActive

100

OllamaGet up and running with large language models.Winter 2021Palo Alto, CAActive

剩下的 75 家公司

此列表中的其余公司，按 A-Z 排序。每个链接都会打开公司的公开页面。

OneCLI OneTriangle Onyx Openbase OpenBuilder OpenFoundry OpenInt OpenPipe OpenReplay Opslane Optic Orchestra Pangolin ParadeDB Payload PeerDB Pipekit PipelineDB PostHog Pretzel AI Protocol Labs Pyroscope QuestDB Random Labs RecipeUI refine Reflex Replicate Requestly RethinkDB Reworkd Riften Rivet Robocurve Rowboat Labs Rownd Sails Co.Shuttle SigNoz Skyvern Sourcebot SST Stackup stagewise Standard Cyborg Sublingual Supabase Superagent superglue Superlog SuperTokens Svix Tensil Tesseral Tipe Tiptap Tracecat Traceloop Tracer Trieve Trigger.dev Tusk Twenty Ukama Unsloth AI Vendo Vibe Kanban Vibrant Labs Vocode Warrant Wasmer Wasp Webiny Windmill Zenbu

正在申请 YC？先研究一下这些申请。

YC Insights 拥有本页面上每家公司重构的申请，可按批次、行业和国家筛选，旁边还有 60,000 多名投资人，他们会投资像您一样的初创公司。

打开 YC Insights

关于此列表

此列表是 Round Funded 的一部分，Round Funded 是一个面向创始人的投资人数据库和外联平台。它包含 60,000+ 位活跃的 VCs、天使投资人、家族办公室和加速器，并提供经过验证的联系方式，让您可以通过自己的 Gmail 发送 pitch，并且包含免费的数据室用于您的融资。这些数据是如何构建的。

常见问题解答

目录中有多少 Y Combinator 公司在标记为 Open Source？

本目录列出了标记为 Open Source 中的 175 家 YC 公司，是自 2005 年以来所有批次公司总数 6,207 家中的一部分。目录刷新时计数会更新，所有这些公司都在本页面上，并附有其公开个人资料的链接。

这些页面上的 YC 申请是真实的吗？

否。YC 会将提交的申请保密。此列表链接的每份申请都是重构的：根据公司的公开数据回答了真实的 YC 表格问题。每页的“公司”部分免费提供；其余部分在 YC Insights 中打开。

此页面上的哪些公司最有名？

CoreOS and GitLab 位居上方列表的前列。YC 将这里的 175 家公司中的 2 家标记为顶尖公司，这是其自有的高估值和高收入校友名单。

申请 YC 时如何使用此列表？

选择此页面上五家产品与您最接近的公司，在 YC Insights 中并排阅读它们重构的申请，并注意它们如何回答相同的问题。然后，为您自己写出这些标准问题的答案。

这些数据从何而来？

来自 YC 的公开公司目录，按批次刷新，包含 YC 报告的公司状态、行业和地点。Round Funded 添加了重构的申请和创始人资料；不发布任何私密信息。

什么是 Round Funded？

Round Funded 是一个面向初创公司创始人的投资人数据库和外联平台。它列出了 60,000+ 活跃投资人的可验证联系方式，并根据近期投资活动进行筛选，让创始人可以从自己的 Gmail 发送个性化路演、跟踪回复，并共享免费的数据室。Round+ 起价为每月 $99，提供 3 天试用。

打开 YC Insights