Company directory
Y Combinator Summer 2018 batch: all 131 companies.
YC's public directory lists 131 companies in the Y Combinator Summer 2018 batch: 77 active, 21 acquired, 32 inactive and 1 public, by YC's own labels. The most common industries are B2B (45), Healthcare (37) and Consumer (18).
Companies in the YC Summer 2018 batch
131 companies in this view
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- Industry
- Healthcare · Industrial Bio
- Location, as listed
- San Francisco, CA, USATeam size 25
- Status, as YC lists it
- Active
- Industry
- B2B · Infrastructure
- Location, as listed
- San Francisco, CA, USA; Mountain View, CA, USATeam size 15
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- New York City, NY, USA; New York, NY, USA; RemoteTeam size 4
- Status, as YC lists it
- Active
- Industry
- Fintech · Banking and Exchange
- Location, as listed
- Jakarta, Jakarta, Indonesia; RemoteTeam size 300
- Status, as YC lists it
- Active
- Industry
- Healthcare · Medical Devices
- Location, as listed
- Houston, TX, USATeam size 2
- Status, as YC lists it
- Acquired
- Industry
- Fintech · Banking and Exchange
- Location, as listed
- Boston, MA, USATeam size 8
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Tel Aviv-Yafo, Tel Aviv District, IsraelTeam size 20
- Status, as YC lists it
- Active
- Industry
- Education
- Location, as listed
- New York City, NY, USA; RemoteTeam size 14
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare IT
- Location, as listed
- Boston, MA, USATeam size 6
- Status, as YC lists it
- Active
- Industry
- Education
- Location, as listed
- San Francisco, CA, USA; RemoteTeam size 2
- Status, as YC lists it
- Active
- Industry
- Consumer · Home and Personal
- Location, as listed
- Tel Aviv-Yafo, Tel Aviv District, IsraelTeam size 10
- Status, as YC lists it
- Inactive
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Francisco, CA, USATeam size 39
- Status, as YC lists it
- Acquired
- Industry
- B2B · Finance and Accounting
- Location, as listed
- Toronto, ON, CanadaTeam size 3
- Status, as YC lists it
- Inactive
- Industry
- B2B · Supply Chain and Logistics
- Location, as listed
- Los Angeles, CA, USATeam size 35
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare Services
- Location, as listed
- Singapore, SingaporeTeam size 15
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare IT
- Location, as listed
- San Juan, San Juan, Puerto RicoTeam size 18
- Status, as YC lists it
- Active
- Industry
- Healthcare · Industrial Bio
- Location, as listed
- New York City, NY, USA; New York, NY, USATeam size 35
- Status, as YC lists it
- Active
- Industry
- Consumer · Food and Beverage
- Location, as listed
- Monterrey, N.L., Mexico; N.L., MexicoTeam size 750
- Status, as YC lists it
- Active
- Industry
- B2B · Operations
- Location, as listed
- New York City, NY, USA; San Francisco, CA, USATeam size 150
- Status, as YC lists it
- Active
- Industry
- Healthcare · Industrial Bio
- Location, as listed
- San Diego, CA, USATeam size 18
- Status, as YC lists it
- Active
- Industry
- Healthcare · Therapeutics
- Location, as listed
- Portland, OR, USATeam size 6
- Status, as YC lists it
- Active
- Industry
- Healthcare · Diagnostics
- Location, as listed
- San Francisco, CA, USA; San Carlos, CA, USATeam size 4
- Status, as YC lists it
- Active
- Industry
- B2B · Analytics
- Location, as listed
- Frisco, CO, USA; San Francisco, CA, USA; RemoteTeam size 9
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- New York City, NY, USA; New York, NY, USATeam size 4
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Drug Discovery and Delivery
- Location, as listed
- San Francisco, CA, USATeam size 5
- Status, as YC lists it
- Acquired
- Industry
- Industrials · Drones
- Location, as listed
- San Francisco, CA, USATeam size 30
- Status, as YC lists it
- Active
- Industry
- Fintech · Asset Management
- Location, as listed
- Lagos, LA, Nigeria; LA, NigeriaTeam size 40
- Status, as YC lists it
- Active
- Industry
- B2B · Recruiting and Talent
- Location, as listed
- San Francisco, CA, USATeam size 6
- Status, as YC lists it
- Acquired
- Industry
- Real Estate and Construction · Housing and Real Estate
- Location, as listed
- San Francisco, CA, USA; Tempe, AZ, USATeam size 100
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare Services
- Location, as listed
- Fort Lauderdale, FL, USA; RemoteTeam size 27
- Status, as YC lists it
- Active
- Industry
- Healthcare · Diagnostics
- Location, as listed
- Durham, NC, USATeam size 10
- Status, as YC lists it
- Active
- Industry
- Consumer · Social
- Location, as listed
- Los Angeles, CA, USATeam size 4
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Consumer Health and Wellness
- Location, as listed
- Austin, TX, USA; New York, NY, USA; RemoteTeam size 6
- Status, as YC lists it
- Active
- Industry
- Healthcare · Therapeutics
- Location, as listed
- San Francisco, CA, USA; San Jose, CA, USATeam size 4
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Therapeutics
- Location, as listed
- San Francisco, CA, USA; San Carlos, CA, USATeam size 8
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Gaming
- Location, as listed
- San Francisco, CA, USA; Redwood City, CA, USATeam size 23
- Status, as YC lists it
- Active
- Industry
- Consumer · Travel, Leisure and Tourism
- Location, as listed
- London, England, United KingdomTeam size 55
- Status, as YC lists it
- Active
- Industry
- B2B
- Location, as listed
- London, England, United Kingdom; Lisbon, Lisbon, Portugal; New York, NY, USATeam size 70
- Status, as YC lists it
- Active
- Industry
- Healthcare · Diagnostics
- Location, as listed
- San Francisco, CA, USATeam size 100
- Status, as YC lists it
- Active
- Industry
- B2B · Productivity
- Location, as listed
- San Francisco, CA, USA; RemoteTeam size 23
- Status, as YC lists it
- Active
- Industry
- Industrials · Agriculture
- Location, as listed
- New York City, NY, USA; New York, NY, USATeam size 60
- Status, as YC lists it
- Active
- Industry
- Education
- Location, as listed
- Atlanta, GA, USATeam size 3
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Social
- Location, as listed
- Not listedTeam size 2
- Status, as YC lists it
- Inactive
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Francisco, CA, USA; RemoteTeam size 2
- Status, as YC lists it
- Inactive
- Industry
- Fintech · Consumer Finance
- Location, as listed
- Santiago, Santiago Metropolitan Region, ChileTeam size 100
- Status, as YC lists it
- Active
- Industry
- Industrials · Agriculture
- Location, as listed
- Pittsburgh, PA, USATeam size 14
- Status, as YC lists it
- Active
- Industry
- Consumer · Apparel and Cosmetics
- Location, as listed
- CA, USATeam size 3
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Therapeutics
- Location, as listed
- San Francisco, CA, USA; Novato, CA, USATeam size 6
- Status, as YC lists it
- Inactive
- Industry
- B2B · Human Resources
- Location, as listed
- Boston, MA, USA; San Francisco, CA, USATeam size 5
- Status, as YC lists it
- Inactive
- Industry
- B2B · Marketing
- Location, as listed
- Milpitas, CA, USATeam size 3
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Transportation Services
- Location, as listed
- Mexico City, CDMX, MexicoTeam size 300
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Healthcare Services
- Location, as listed
- San Francisco, CA, USA; Chicago, IL, USATeam size 14
- Status, as YC lists it
- Acquired
- Industry
- Fintech · Banking and Exchange
- Location, as listed
- London, England, United Kingdom; LA, NigeriaTeam size 30
- Status, as YC lists it
- Active
- Industry
- Healthcare · Therapeutics
- Location, as listed
- San Francisco, CA, USA; Palo Alto, CA, USATeam size 4
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare IT
- Location, as listed
- San Francisco, CA, USATeam size 50
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Apparel and Cosmetics
- Location, as listed
- Los Angeles, CA, USA; San Francisco, CA, USATeam size 100
- Status, as YC lists it
- ActiveYC top company
- Industry
- Real Estate and Construction · Housing and Real Estate
- Location, as listed
- Berlin, Berlin, GermanyTeam size 14
- Status, as YC lists it
- Acquired
- Industry
- B2B · Productivity
- Location, as listed
- Shanghai, Shanghai, ChinaTeam size 50
- Status, as YC lists it
- Active
- Industry
- Government
- Location, as listed
- Boston, MA, USA; RemoteTeam size 15
- Status, as YC lists it
- Acquired
- Industry
- Consumer · Virtual and Augmented Reality
- Location, as listed
- San Francisco, CA, USATeam size 3
- Status, as YC lists it
- Inactive
- Industry
- B2B · Retail
- Location, as listed
- San Francisco, CA, USATeam size 10
- Status, as YC lists it
- Inactive
- Industry
- B2B · Infrastructure
- Location, as listed
- San Francisco, CA, USATeam size 35
- Status, as YC lists it
- Active
- Industry
- Consumer · Virtual and Augmented Reality
- Location, as listed
- San Francisco, CA, USA; Palo Alto, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- Industrials · Manufacturing and Robotics
- Location, as listed
- San Francisco, CA, USATeam size 18
- Status, as YC lists it
- Active
- Industry
- Fintech · Payments
- Location, as listed
- Bengaluru, KA, IndiaTeam size 350
- Status, as YC lists it
- Active
- Industry
- Fintech · Payments
- Location, as listed
- San Francisco, CA, USA; RemoteTeam size 18
- Status, as YC lists it
- Acquired
- Industry
- B2B · Supply Chain and Logistics
- Location, as listed
- Lagos, LA, Nigeria; Kampala, Central Region, UgandaTeam size 204
- Status, as YC lists it
- Inactive
- Industry
- Education
- Location, as listed
- Istanbul, Istanbul, Turkey; RemoteTeam size 85
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- Nantes, Pays de la Loire, France; RemoteTeam size 6
- Status, as YC lists it
- Inactive
- Industry
- B2B
- Location, as listed
- New York City, NY, USA; New Delhi, DL, IndiaTeam size 500
- Status, as YC lists it
- Active
- Industry
- Healthcare · Consumer Health and Wellness
- Location, as listed
- San Francisco, CA, USATeam size 20
- Status, as YC lists it
- Active
- Industry
- Consumer · Gaming
- Location, as listed
- San Francisco, CA, USATeam size 10
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Consumer Health and Wellness
- Location, as listed
- Dallas, TX, USA
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare Services
- Location, as listed
- San Francisco, CA, USA; RemoteTeam size 15
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Healthcare IT
- Location, as listed
- San Francisco, CA, USA; RemoteTeam size 7
- Status, as YC lists it
- Active
- Industry
- Healthcare · Consumer Health and Wellness
- Location, as listed
- San Francisco, CA, USA; Helsinki, FinlandTeam size 55
- Status, as YC lists it
- Active
- Industry
- B2B · Finance and Accounting
- Location, as listed
- San Francisco, CA, USATeam size 160
- Status, as YC lists it
- Active
- Industry
- Industrials · Aviation and Space
- Location, as listed
- San Francisco, CA, USA; Santa Clara, CA, USATeam size 125
- Status, as YC lists it
- PublicYC top company
- Industry
- B2B · Sales
- Location, as listed
- New York City, NY, USATeam size 20
- Status, as YC lists it
- Active
- Industry
- Consumer · Food and Beverage
- Location, as listed
- San Francisco, CA, USATeam size 6
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Industrial Bio
- Location, as listed
- London, England, United KingdomTeam size 26
- Status, as YC lists it
- Active
- Industry
- B2B · Human Resources
- Location, as listed
- San Francisco, CA, USA; Palo Alto, CA, USATeam size 20
- Status, as YC lists it
- Active
- Industry
- B2B · Human Resources
- Location, as listed
- San Francisco, CA, USA; RemoteTeam size 20
- Status, as YC lists it
- Active
- Industry
- Fintech
- Location, as listed
- Dallas, TX, USATeam size 12
- Status, as YC lists it
- Acquired
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Francisco, CA, USATeam size 3
- Status, as YC lists it
- Inactive
- Industry
- Fintech · Payments
- Location, as listed
- Bengaluru, KA, IndiaTeam size 70
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Francisco, CA, USATeam size 2
- Status, as YC lists it
- Acquired
- Industry
- B2B · Operations
- Location, as listed
- San Francisco, CA, USA
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- New York City, NY, USA; New York, NY, USA; RemoteTeam size 5
- Status, as YC lists it
- Acquired
- Industry
- Fintech
- Location, as listed
- San Francisco, CA, USATeam size 10
- Status, as YC lists it
- Active
- Industry
- Fintech · Consumer Finance
- Location, as listed
- San Francisco, CA, USA; Los Angeles, CA, USA; RemoteTeam size 68
- Status, as YC lists it
- Active
- Industry
- Industrials · Drones
- Location, as listed
- Houston, TX, USATeam size 12
- Status, as YC lists it
- Active
- Industry
- Healthcare · Healthcare IT
- Location, as listed
- Miami, FL, USATeam size 500
- Status, as YC lists it
- Active
- Industry
- Industrials · Automotive
- Location, as listed
- Toronto, ON, CanadaTeam size 5
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Consumer Health and Wellness
- Location, as listed
- Waterloo, ON, CanadaTeam size 5
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Therapeutics
- Location, as listed
- San Francisco, CA, USA; Palo Alto, CA, USATeam size 2
- Status, as YC lists it
- Inactive
- Industry
- Industrials · Automotive
- Location, as listed
- San Francisco, CA, USA; Redwood City, CA, USATeam size 12
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Healthcare Services
- Location, as listed
- San Francisco, CA, USA; Oakland, CA, USATeam size 75
- Status, as YC lists it
- Active
- Industry
- Consumer · Social
- Location, as listed
- Austin, TX, USA; RemoteTeam size 100
- Status, as YC lists it
- Active
- Industry
- Fintech · Credit and Lending
- Location, as listed
- San Francisco, CA, USATeam size 99
- Status, as YC lists it
- Active
- Industry
- Consumer · Food and Beverage
- Location, as listed
- San Francisco, CA, USATeam size 45
- Status, as YC lists it
- Inactive
- Industry
- B2B · Productivity
- Location, as listed
- Warsaw, Masovian Voivodeship, PolandTeam size 7
- Status, as YC lists it
- Active
- Industry
- B2B · Operations
- Location, as listed
- San Francisco, CA, USA; RemoteTeam size 125
- Status, as YC lists it
- Active
- Industry
- Healthcare · Diagnostics
- Location, as listed
- Boston, MA, USA; Cambridge, MA, USATeam size 7
- Status, as YC lists it
- Inactive
- Industry
- Industrials · Manufacturing and Robotics
- Location, as listed
- San Francisco, CA, USA; Redwood City, CA, USATeam size 12
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Industrial Bio
- Location, as listed
- Seattle, WA, USATeam size 12
- Status, as YC lists it
- Active
- Industry
- B2B · Legal
- Location, as listed
- San Francisco, CA, USATeam size 60
- Status, as YC lists it
- Acquired
- Industry
- Healthcare · Therapeutics
- Location, as listed
- San Francisco, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Francisco, CA, USA; RemoteTeam size 160
- Status, as YC lists it
- Active
- Industry
- Fintech · Payments
- Location, as listed
- San Francisco, CA, USATeam size 8
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Diagnostics
- Location, as listed
- Los Angeles, CA, USA; RemoteTeam size 13
- Status, as YC lists it
- Acquired
- Industry
- B2B · Retail
- Location, as listed
- Seattle, WA, USATeam size 40
- Status, as YC lists it
- Acquired
- Industry
- B2B · Marketing
- Location, as listed
- San Francisco, CA, USATeam size 3
- Status, as YC lists it
- Inactive
- Industry
- B2B · Supply Chain and Logistics
- Location, as listed
- Monterrey, N.L., MexicoTeam size 320
- Status, as YC lists it
- Active
- Industry
- B2B · Retail
- Location, as listed
- New York City, NY, USA; New York, NY, USA; RemoteTeam size 15
- Status, as YC lists it
- Active
- Industry
- Healthcare · Industrial Bio
- Location, as listed
- San Francisco, CA, USA; Oakland, CA, USA
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Drug Discovery and Delivery
- Location, as listed
- San Francisco, CA, USA; Oakland, CA, USATeam size 2
- Status, as YC lists it
- Active
- Industry
- B2B · Human Resources
- Location, as listed
- Ottawa, ON, CanadaTeam size 10
- Status, as YC lists it
- Active
- Industry
- B2B
- Location, as listed
- Dubai, United Arab EmiratesTeam size 60
- Status, as YC lists it
- Active
- Industry
- Consumer · Food and Beverage
- Location, as listed
- Seattle, WA, USATeam size 3
- Status, as YC lists it
- Inactive
- Industry
- Consumer · Food and Beverage
- Location, as listed
- Washington, DC, USATeam size 110
- Status, as YC lists it
- Active
- Industry
- Consumer · Food and Beverage
- Location, as listed
- Cambridge, England, United Kingdom; England, United KingdomTeam size 15
- Status, as YC lists it
- Inactive
- Industry
- Fintech · Asset Management
- Location, as listed
- New York City, NY, USATeam size 40
- Status, as YC lists it
- Active
- Industry
- B2B · Human Resources
- Location, as listed
- Mexico City, CDMX, Mexico; Santiago, Santiago Metropolitan Region, Chile; Lima, Callao Region, Peru; Panama City, Panama, Panama; RemoteTeam size 300
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Francisco, CA, USA; RemoteTeam size 3
- Status, as YC lists it
- Inactive
- Industry
- Healthcare · Consumer Health and Wellness
- Location, as listed
- New York City, NY, USA; New York, NY, USATeam size 200
- Status, as YC lists it
- Active
- Industry
- B2B · Productivity
- Location, as listed
- New York City, NY, USA; New York, NY, USA; RemoteTeam size 9
- Status, as YC lists it
- Active
- Industry
- B2B · Productivity
- Location, as listed
- San Francisco, CA, USA; RemoteTeam size 7
- Status, as YC lists it
- Inactive
- Industry
- B2B
- Location, as listed
- San Francisco, CA, USATeam size 128
- Status, as YC lists it
- Active
- Industry
- B2B · Engineering, Product and Design
- Location, as listed
- San Francisco, CA, USA; RemoteTeam size 6
- Status, as YC lists it
- Inactive
- Industry
- Real Estate and Construction · Housing and Real Estate
- Location, as listed
- Gurugram, HR, IndiaTeam size 57
- Status, as YC lists it
- Active
How to use this list
- Filter by industry, listed location or status, or search for a company, a city or one of YC's tags.
- Each name opens the company's YC profile. The website link goes to the company's own site; we show it only for companies YC lists as active or public, because the domains of closed and acquired companies often lapse or change hands.
- Status is YC's label, not our assessment. Active does not mean funded, growing or looking for suppliers.
- Keep a list as you go. Add to my research saves a company in this browser, and Download my list turns your picks into a spreadsheet.
About the Summer 2018 batch
The directory lists 131 Summer 2018 companies, most often first listed in San Francisco (58), New York City (13) and Boston (5). YC flags 2 of them as top companies.
About this data
Each record comes from YC's public startup directory, through the open-source yc-oss mirror of it, pulled on September 13, 2026. We show YC's own industry, location and status labels and none of YC's company descriptions. The directory lists launched companies YC shows publicly, so a company that has left it will not appear here.
If a record is wrong, use Suggest a correction on its row and include a source. We check corrections against YC's directory and the company's own site.
Sources
Checked September 13, 2026. YC updates its directory, so counts and labels change. Mining Wells is not affiliated with Y Combinator.
- Y Combinator: Startup directory, Summer 2018 batch: the companies, their status, industry and listed locations
- yc-oss: open-source mirror of YC's directory (pulled September 13, 2026): the snapshot these records come from
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