131 YC Companies in the S18 Batch (Summer 2018)

Y Combinator's Summer 2018 batch (S18) has 131 companies in this directory. Below is every one of them: what it does, where it is based, its status today, and a link to its YC application reconstructed in the real form, so you can read how S18 founders described their companies before they got in.

Companies
131
Top industries
B2B, Healthcare and Consumer
Top locations
San Francisco, New York and Palo Alto
YC top companies
2
131 reconstructed applications

Read the YC application of all 131 companies

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The first 100 companies, top companies first

1
Honeylove
HoneyloveTopHoneylove makes functional undergarments for women
Summer 2018Los Angeles, CAActive
2
Momentus
MomentusTopThe space infrastructure services company
Summer 2018Santa Clara, CAPublic
4
Activeloop
ActiveloopDatabase for AI
Summer 2018Mountain View, CAActive
5
Aesthetic
AestheticYour AI-powered creative apprentice 🪄
Summer 2018New York, NYActive
6
Ajaib
AjaibConsumer fintech for Indonesia
Summer 2018Jakarta, Jakarta, IndonesiaActive
9
Anima App
Anima AppDesign to Code & On-brand Vibe-coding
Summer 2018New York, NYActive
10
AnnieCannons
AnnieCannonsConnecting Survivors to Careers in Tech
Summer 2018New York City, NYActive

That is 10 of 131.

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

Read all 131 applications
13
Avo
AvoOnline convenience store for residential and office buildings
Summer 2018Tel Aviv-Yafo, Tel Aviv District, IsraelInactive
15
BHRD
BHRDBHRD ("Be Heard") helps public companies communicate with investors.
Summer 2018Toronto, ON, CanadaInactive
16
BlueCargo
BlueCargoThe automated solution for complex freight transactions.
Summer 2018Los Angeles, CAActive
17
Bot MD
Bot MDAI Clinical Assistant for Doctors
Summer 2018Singapore, SingaporeActive
18
BrainHi
BrainHiAutomated receptionist that answers missed calls for local businesses
Summer 2018San Juan, San Juan, Puerto RicoActive
20
Calii
CaliiFull-stack grocery delivery in LatAm
Summer 2018Monterrey, N.L., MexicoActive
21
Canary Technologies
Canary TechnologiesModernizing the hospitality tech stack.
Summer 2018New York City, NYActive
26
Contrast
ContrastDeveloper Handoff - Reimagined for Storybook
Summer 2018New York, NYInactive
27
Coral Genomics
Coral GenomicsNew clinical tests for managing autoimmune treatments.
Summer 2018San Francisco, CAAcquired
28
Corvus Robotics
Corvus RoboticsAutonomous drones to help warehouses scan inventory.
Summer 2018Mountain View, CAActive
29
Cowrywise
CowrywiseDigitizing wealth management in Africa
Summer 2018Lagos, LA, NigeriaActive
30
CSPA
CSPAThe Computer Science Proficiency Assessment (CSPA™) is a…
Summer 2018San Francisco, CAAcquired
31
Culdesac
CuldesacWe build cities for people, not cars.
Summer 2018San Francisco, CAActive
32
Curebase
CurebaseModern, AI-powered clinical trial software platform.
Summer 2018San Francisco, CAActive
34
Demeanor.co
Demeanor.coNow part of thentwrk.com
Summer 2018Los Angeles, CAAcquired
36
dNovo
dNovoThe cure for hair loss.
Summer 2018San Jose, CAInactive
39
Duffel
DuffelThe complete toolkit to sell travel.
Summer 2018London, England, United KingdomActive
40
Easol
EasolShopify for experiences
Summer 2018London, England, United KingdomActive
41
Eden
EdenDeveloping AI to unleash diagnostic abundance.
Summer 2018Mexico City, CDMX, MexicoActive
42
Embeddables
EmbeddablesThe funnel builder built for health & wellness brands.
Summer 2018San Francisco, CAActive
44
ExceptionALLY
ExceptionALLYAffordable expertise for special needs parenting.
Summer 2018Atlanta, GAInactive
46
Federacy
FederacyPenetration testing and bug bounty platform.
Summer 2018San Francisco, CAActive
47
Fintual
FintualWealth manager
Summer 2018Santiago, Santiago Metropolitan Region, ChileActive
51
Goodly
GoodlyStudent loan repayment as an employee benefit.
Summer 2018Boston, MAInactive
53
Grin
GrinMobility and payments platform for Latin America
Summer 2018Mexico City, CDMX, MexicoAcquired
54
HappiLabs
HappiLabsVirtual Lab Managers for scientists and biotech, research Labs
Summer 2018San Francisco, CAAcquired
55
Helicarrier (prev Buycoins)
Helicarrier (prev Buycoins)Cryptocurrency infrastructure for Africa.
Summer 2018London, United KingdomActive
56
Hepatx
HepatxReplacing organ transplant with an infusion
Summer 2018Palo Alto, CAActive
58
hypcloud
hypcloudA tech-enabled commercial mortgage broker. hypcloud allows property…
Summer 2018Berlin, Berlin, GermanyAcquired
59
iLabService
iLabServicePowering the Future of Lab Operations with AIoT!
Summer 2018Shanghai, Shanghai, ChinaActive
61
INKHUNTER
INKHUNTERAugmented Reality mobile app to try and buy tattoos
Summer 2018San Francisco, CAInactive
63
Inscribe
InscribeAI Document Fraud Detection for Banks, Credit Unions & Lenders
Summer 2018San Francisco, CAActive
64IxoraWe create the digital outdoor environment for a movie.Summer 2018Palo Alto, CAInactive
65
JITX
JITXAutomatic circuit board design.
Summer 2018San Francisco, CAActive
67
Kinside
KinsidePowering the $648b Care Economy
Summer 2018San Francisco, CAAcquired
68
Klarity
KlarityKlarity: Your Always-On AI Analyst, Advisor & Coach
Summer 2018San Francisco, CAActive
69
Kobo360
Kobo360Africa's leading supply chain technology platform.
Summer 2018Lagos, LA, NigeriaInactive
70
Kunduz
KunduzKunduz provides instant answers to students' questions and makes…
Summer 2018Istanbul, Istanbul, TurkeyActive
71
LabelFlow
LabelFlowGitHub for visual data
Summer 2018Nantes, Pays de la Loire, FranceInactive
74
Lowkey
LowkeyCapture, create, & share gaming moments (Acquired by Niantic!)
Summer 2018San Francisco, CAAcquired
77
MentalHappy
MentalHappyGroup-Therapy Platform for Providers and Health Systems
Summer 2018San Francisco, CAActive
78
Meru Health
Meru HealthAn online provider for greater mental health
Summer 2018San Mateo, CAActive
79
Modern Treasury
Modern TreasuryPayment operations tools for money movement.
Summer 2018San Francisco, CAActive
81
Mylk Guys
Mylk GuysAmazon for Vegans
Summer 2018San Francisco, CAInactive
82
Mytos
MytosRobotic human cell manufacturing
Summer 2018London, England, United KingdomActive
85
Nova
NovaDigital subscriptions that delight investors.
Summer 2018Dallas, TXAcquired
87
OkCredit
OkCreditSimple and secure bookkeeping for Indian businesses.
Summer 2018Bengaluru, KA, IndiaActive
90
Optic
OpticMaking APIs Developer-friendly
Summer 2018New York, NYAcquired
91
OWNY
OWNYManage capital, investors & banking in one place.
Summer 2018Palo Alto, CAActive
94
Papa
PapaOne-stop-shop for flexible family care
Summer 2018Miami, FLActive
95
Passenger AI
Passenger AISoftware for robotaxi operations.
Summer 2018Toronto, ON, CanadaInactive
96
Penta Medical
Penta MedicalSmart hardware for injury recovery.
Summer 2018Waterloo, ON, CanadaInactive
98
Phiar
PhiarWe are developing a revolutionary AI-powered augmented reality…
Summer 2018Redwood City, CAAcquired

The other 31 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.

Frequently Asked Questions

How many Y Combinator companies are in the Summer 2018 batch?

This directory lists 131 YC companies in the Summer 2018 batch, 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?

Honeylove and Momentus lead the table above. YC marks 2 of the 131 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.