109 YC Data Engineering Startups

109 Y Combinator companies carry the Data Engineering tag in YC's own directory, across every batch since 2005. Each row shows what the company does, its batch, HQ and status, and links to its YC application reconstructed in the real form, so a founder building a Data Engineering startup can read how accepted companies answered the same questions.

Companies
109
Top industries
B2B, Industrials and Healthcare
Top locations
San Francisco, New York and New York City
YC top companies
1
109 reconstructed applications

Read the YC application of all 109 companies

  • Every company's YC application, reconstructed in the real form
  • Filter every batch by industry, country and team size
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The first 100 companies, top companies first

1
Fivetran
FivetranTopThe leader in automated data movement
Winter 2013Oakland, CAActive
2
Airbyte
AirbyteContext layer for production-grade AI agents
Winter 2020San Francisco, CAActive
3
Alkera AI
Alkera AIReliable and safe data engineering and data science agents
Summer 2026San Francisco, CAActive
5
authzed
authzedCloud Infrastructure for Authorization
Winter 2021New York, NYActive
6
Avenue
AvenueObservability platform for operations teams
Winter 2021New York, NYAcquired
7
BackType
BackTypeBackType was an analytics company acquired by Twitter in 2011
Summer 2008San Francisco, CAAcquired
8
Bracket
BracketTwo-way syncs between business tools and your database
Winter 2022New York, NYAcquired
9
Briefer
BrieferThe collaborative data platform.
Summer 2023São Paulo, SP, BrazilInactive
10
Captain
CaptainGive AI agents accurate knowledge search that scales
Winter 2026San Francisco, CAActive

That is 10 of 109.

Every company below has its YC application reconstructed in YC Insights. Create a free account to read them all.

Read all 109 applications
11
Cedalio
CedalioAI agents that automate AP, procurement, and finance
Summer 2023San Francisco, CAActive
12
Chaos Genius
Chaos GeniusDataOps Observability Platform for Snowflake
Winter 2020Bengaluru, IndiaAcquired
13
Clear
ClearThe unbiased AI and data layer for skin health.
Winter 2021London, England, United KingdomActive
14
Corvera
CorveraThe context layer for AI-native CPG brands
Winter 2026San Francisco, CAActive
16
Data Mechanics
Data MechanicsSpark-on-Kubernetes Data Engineering Platform
Summer 2019Paris, Île-de-France, FranceAcquired
18
Dataland
DatalandAI agents for customer support.
Summer 2020New York, NYActive
20
DataShare
DataShareEmbed charts, dashboards and exports in your app
Summer 2023Austin, TXActive
22
DevFlight
DevFlightManaged equipment data pipelines for manufacturers
Winter 2019Somerville, MAInactive
23
Dynamo AI
Dynamo AICompliant-Ready AI for the Enterprise
Winter 2022San Francisco, CAActive
24
Elementary
ElementaryOpen-source data observability for data teams
Winter 2022Tel Aviv-Yafo, Tel Aviv District, IsraelActive
25
Embrace
EmbraceModern user-focused observability built on OpenTelemetry
Summer 2019Los Angeles, CAActive
26
Etleap
EtleapEtleap is an ETL solution for creating perfect data pipelines.
Winter 2013San Francisco, CAActive
27
Evidence
EvidenceBusiness intelligence as code
Summer 2021Toronto, ON, CanadaActive
28
Findly
FindlyCo-pilot for Business Intelligence
Summer 2022London, England, United KingdomActive
29
FlowDeploy
FlowDeployBioinformatics pipelines in the cloud
Winter 2022Mountain View, CAInactive
30
Gecko Robotics
Gecko RoboticsAI + Robotics for the Built World
Winter 2016Pittsburgh, PAActive
31
Grai
GraiOpen source version control for metadata
Summer 2022San Francisco, CAInactive
32
Haladir
HaladirOperational Superintelligence for Global Logistics
Winter 2026San Francisco, CAActive
34
HomeRoom
HomeRoomWe Rent Your Property by the Room. You earn 50% more Rent.
Winter 2022San Jose, CAAcquired
35
Honeydew
HoneydewThe home for shared data logic
Winter 2023Tel Aviv-Yafo, Tel Aviv District, IsraelActive
36
Hydra
HydraServerless Analytics on Postgres
Winter 2022San Francisco, CAAcquired
37
Hyperspell
HyperspellMemory for AI Agents
Fall 2025San Francisco, CAActive
38
ilumadata
ilumadataConfidently ship analytics code faster with fewer errors
Summer 2022London, England, United KingdomInactive
40
Jitsu
JitsuCapture Event Data into Your Stack
Summer 2020New York City, NYActive
41
kater.ai
kater.aiDeliver complete data analysis from a single question
Winter 2024San Francisco, CAActive
42
Kilvin
KilvinCustom software for non-technical teams.
Fall 2024New York, NYActive
43
LabelFlow
LabelFlowGitHub for visual data
Summer 2018Nantes, Pays de la Loire, FranceInactive
44
Lamin
LaminOpen data lakehouse for biology
Summer 2022Active
46
Lariat Data
Lariat DataObservability for Data Engineering Teams
Summer 2021New York, NYInactive
47
Litmus
LitmusEvals for humans
Summer 2026New York City, NYActive
48
Logarithm Labs
Logarithm LabsEasy button to use data for your daily operations
Winter 2020Foster City, CAActive
49
Lume
LumeSpeed up customer implementation with AI
Winter 2023Acquired
50
Magma
MagmaMonetize your agent's traces.
Summer 2026San Francisco, CAActive
51
Markov
MarkovExpert computer-use data for frontier AI labs
Summer 2026San Francisco, CAActive
52
Melder
MelderAI formulas and document support for Microsoft Excel
Fall 2024New York, NYActive
53
Metaplane
MetaplaneData observability for modern data teams
Winter 2020New York City, NYAcquired
54
Mezmo
MezmoObservability platform to control all of your log data
Winter 2015San Jose, CAActive
55
Mica AI
Mica AIReplace the humans fixing bad data
Summer 2024San Francisco, CAActive
56
Monosi
MonosiOpen Source Data Observability
Summer 2020San Francisco, CAInactive
57
MovingLake
MovingLakeRealtime Data Connectors
Summer 2022Mexico City, CDMX, MexicoActive
58
Mozart Data
Mozart DataThe easiest way to set up a modern data stack
Summer 2020San Francisco, CAActive
60
Nitrode
NitrodeData for reasoning agents in dynamic environments
Winter 2025San Francisco, CAActive
62
Ohm
OhmOhm helps engineering labs develop better products faster, with AI.
Winter 2023San Francisco, CAActive
64
Operator.io
Operator.ioOperator.io is OpenClaw that just works
Winter 2020New York, NYActive
65
Outerbase
OuterbaseThe interface for your database
Winter 2023Pittsburgh, PAAcquired
67
Patterns
PatternsNext-Gen Financial Analysis and Reporting with AI Agents
Summer 2021San Francisco, CAInactive
68
PeerDB
PeerDBFast, native ETL for Postgres 🐘 🚀
Summer 2023Acquired
69
Petrarch
PetrarchInternal industrial company data for frontier labs
Summer 2026San Francisco, CAActive
71
Platypus
PlatypusThe Distributed Data Operating System
Winter 2021San Francisco, CAInactive
72
Polytomic
PolytomicNo-code data syncing between your systems
Winter 2020San Francisco, CAActive
73
Prequel
PrequelHelping B2B co's sync data to their customers
Winter 2021New York, NYActive
74
Quary
QuaryThe first in-browser analytics engineering platform
Winter 2024London, England, United KingdomInactive
75
Reducto
ReductoThe complete agentic document platform
Winter 2024San Francisco, CAActive
76
Sanifu
SanifuAutomate the repetitive work spreadsheets are used for
Summer 2022Nairobi, Nairobi County, KenyaActive
77
Sarus
SarusUse personal data for analytics and ML, safely and seamlessly
Winter 2022Paris, Île-de-France, FranceAcquired
79
SBX Robotics
SBX RoboticsSynthetic data for better vision.
Winter 2021Toronto, ON, CanadaInactive
80
Scuba
ScubaAnalytics for impatient people.
Winter 2013Acquired
81
Secoda
SecodaSecoda is the AI layer for your Analytics
Summer 2021Toronto, ON, CanadaActive
82
Sensei
SenseiRobotic Training Data at Scale
Summer 2024San Francisco, CAActive
83
Sharpe
SharpeAgents for quantitative research and financial data science.
Summer 2024San Francisco, CAActive
84
Sherpa Labs
Sherpa LabsThe AI Data Team
Winter 2025New York City, NYActive
86
Sieve
SieveVideo datasets for frontier AI
Winter 2022San Francisco, CAActive
87
Sourceress
Sourceress
Summer 2017San Francisco, CAActive
88
Stackshine
StackshineAutomating all IT operations
Winter 2022Portland, ORAcquired
89
Streamdal
StreamdalData Quality & Playback Platform
Summer 2020Portland, ORInactive
90
Sunpia
SunpiaDeploy serverless without rewriting code
Summer 2022San Jose, CAActive
91
Supabase
SupabaseBuild in a weekend. Scale to millions.
Summer 2020San Francisco, CAActive
92
Symplex
SymplexApplied Reinforcement Learning Research Laboratory
Summer 2019New York, NYAcquired
93
TableFlow
TableFlowAI Teammates for Data Tasks
Winter 2023San Francisco, CAActive
94
Tarsal
TarsalData pipeline for your security data lake.
Summer 2021New York, NYAcquired
95
TetraScience
TetraScienceThe only R&D data cloud for life sciences
Summer 2015Boston, MAActive
96
Trackingplan
TrackingplanAutomated QA for your Digital Analytics
Winter 2022Barcelona, CT, SpainActive
97
Trellis AI
Trellis AIAI for streamlining healthcare paperwork
Winter 2024San Francisco, CAActive
100
Velum Labs
Velum LabsThe OS for data quality across any stack
Winter 2026San Francisco, CAActive

The other 9 companies

Every remaining company in this list, A to Z. Each link opens the company's public page.

Applying to YC? Study these applications first.

YC Insights holds the reconstructed application of every company on this page, filterable by batch, industry and country, next to 60,000+ investors who fund startups like yours.

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About this list

This list is part of Round Funded, an investor database and outreach platform for founders. It covers 60,000+ active VCs, angels, family offices and accelerators with verified contacts, lets you send pitches from your own Gmail, and includes a free Data Room for your raise. How this data is built.

Frequently Asked Questions

How many Y Combinator companies are in tagged Data Engineering?

This directory lists 109 YC companies in tagged Data Engineering, out of 6,207 across every batch since 2005. The count updates when the directory is refreshed, and every one of them is on this page with a link to its public profile.

Are the YC applications on these pages real?

No. YC keeps submitted applications private. Every application linked from this list is a reconstruction: the real YC form questions, answered from the company's public data. The Company section is free on each page; the rest opens in YC Insights.

Which companies on this page are best known?

Fivetran lead the table above. YC marks 1 of the 109 companies here as top companies, its own list of the highest-valued and highest-revenue alumni.

How do I use this list when applying to YC?

Pick five companies on this page whose product is closest to yours, read their reconstructed applications side by side in YC Insights, and note how each answers the same question. Then write your own answers to that standard.

Where does this data come from?

From YC's public company directory, refreshed by batch, with each company's status, industry and location as YC reports them. Round Funded adds the reconstructed application and the founder profiles; nothing private is published.

What is Round Funded?

Round Funded is an investor database and outreach platform for startup founders. It lists 60,000+ active investors with verified contacts, filtered to recent investment activity, and lets founders send personalized pitches from their own Gmail, track replies, and share a free Data Room. Round+ starts at $99 per month with a 3-day trial.