Data Conference Databasea Query.Farm index
Companies

Mercari

Product category (jev): unsure; best guess “Other software” at 49% confidence, so it isn't used in filters or charts
Org type (jev): End-user enterprise 97% confident
Also listed as: Mercari Inc
Conferences sponsored1
Events sponsored1
Speaker slots1210 distinct people
Conferences present at6sponsor or speaker
Years active2019–2025

Circuit mix

Where Mercari shows up, by circuit. Each event counts once: 2 if it sponsored, 1 if it only had speakers. Hover a segment for the conference.

Presence by conference and year

Each cell is one conference in one year. Fill shows the company sponsored, shaded by its best tier that year; a dot means it had speakers there. Hover for details; click to open the event.

  • Title
  • Platinum
  • Gold
  • Silver
  • Bronze
  • Other / unlabeled tier
  • Had speakers
Conference2019202020212022202320242025202620272028
Berlin Buzzwords
PyCon (national Python conferences)
Beam Summit
EMNLP (Conference on Empirical Methods in Natural Language Processing)
Haystack
PyData

Activity by year

Three measures on one year axis; each panel has its own scale. 2027, 2028 is still mostly ahead, so its bars are faded and incomplete.

Conferences present at

Distinct conferences each year, split by whether the company sponsored or only had speakers there.

  • Sponsored
  • Speakers only

Distinct speakers

People from this company on a program that year, each counted once.

Sponsorships by tier

Sponsorship rows per year (one per event and listing), stacked by normalized tier.

  • Bronze

Where they've grown or pulled back

DownNothing recorded in 2026; sponsored 1 conference in 2023.

Counted per conference. 2026 is the latest year whose conferences have mostly happened. Tiers use the best tier each year; swatches show the path, oldest first. A conference counts as pulled out only when a later event published a complete sponsor list, since most events don’t say whether their list is complete.

Pulled out 1

Not sponsored since 2024 or earlier, though a later event published a complete sponsor list without them.

Lookalikes

Companies with the most similar conference footprint: they sponsor and speak at the same conferences. Bars are cosine similarity, from 0 (nothing shared) to 1 (identical).

  1. Haystack0.95
  2. Philip Morris International0.89
  3. OLX Group0.88
  4. Jina AI0.76
  5. The Alan Turing Institute0.73
  6. bol.com0.72
  7. OTTO0.70
  8. Yelp0.69

16 Cluster: PyCon · EuroPython circuit →

Often sponsors alongside

Companies that sponsored the same events, by number of shared events (out of 1 this company sponsored).

CompanyShared eventsShare
Adobe1100%
Ahrefs1100%
aiXplain1100%
Alibaba Cloud1100%
Amazon Web Services1100%
Ant Group1100%
Apple1100%
Babelscape1100%
Baidu1100%
Bloomberg1100%
ByteDance1100%
Cohere1100%
COLIPS1100%
Duolingo1100%
Google1100%

Neighborhood: companies with nearby conference footprints

Mercari (ringed) and the 30 companies closest to it on the company map. Close together means they sponsor and speak at many of the same conferences. Distances are only meaningful locally; the axes have no meaning. Dot size: conferences present at. Color: cluster.

MercariHaystackPhilip Morris InternationalOLX GroupVintedAllegroASMLinovex GmbHColumnarGetYourGuideGoDataDrivenbol.comCompassDelivery HeroLightbendRasaExplosionThe Institute for Ethical AI & Machine LearningCivis AnalyticsPicnicFlatiron HealthSpare CoresThe Alan Turing InstituteBytewaxBBCDropboxPydanticKLM Royal Dutch AirlinesMor ConsultingYelpThe New York Times
MercariHaystackOLX GroupVintedAllegroASMLinovex GmbHColumnarGoDataDrivenbol.comCompassLightbendRasaExplosionCivis AnalyticsPicnicFlatiron HealthThe Alan Turing InstituteBytewaxBBCDropboxPydanticMor ConsultingYelpThe New York Times

Sponsorships 1

EventDatePlaceTier as listedNormalized tier
EMNLP 2023Dec 6–10, 2023Singapore, SingaporeBronze Bronze

Speakers 12

SpeakerEventRoleTalkLinks
Yoichi NagaiBeam Summit 2025speakerIntegration of Batch and Streaming data processing with Apache BeamSlides · Video
Kaiyi LiuHaystack US 2025speakerAI and LLM strategies and application at Mercari SearchSlides · Video
Calvin Janitra HalimPyCon JP 2024talkMLOps in Mercari Group’s Trust and Safety ML Team—
Prashant AnandPyCon JP 2024talkAI-powered Automatic Replies in Customer Support: Precision-Focused Approach at Mercari—
Chingis OinarBerlin Buzzwords 2024talkRobust AI Search Ranking for Radical C2C Marketplace GrowthSlides · Video
Kentaro TakiguchiBerlin Buzzwords 2024talkA Practical Approach To Semantic SearchVideo
Teo Narboneta ZosaBerlin Buzzwords 2024talkRobust AI Search Ranking for Radical C2C Marketplace GrowthSlides · Video
Prashant AnandPyCon APAC 2023talkAI for Efficient Routing of Customer Inquiries at Mercari—
Ryan GinstromBerlin Buzzwords 2023talkBuilding MLOps Infrastructure at Japan's Largest C2C E-Commerce SiteVideo
Teo Narboneta ZosaBerlin Buzzwords 2023talkBuilding MLOps Infrastructure at Japan's Largest C2C E-Commerce SiteVideo
Shuichi SuzukiBeam Summit North America 2019speakerCreating a Stream Data Pipeline on Google Cloud Platform using Apache BeamVideo
Kaustubh HiwarePyData Delhi 2019talkUsing NLP for disaster management—