Leboncoin
Circuit mix
Where Leboncoin shows up, by circuit. Each event counts once: 2 if it sponsored, 1 if it only had speakers. Hover a segment for the conference.
- Postgres & open-source databases70%4 events
- Modern data stack & practitioner30%3 events
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
| Conference | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 | 2027 | 2028 |
|---|---|---|---|---|---|---|---|---|---|---|
| pgDay Paris | ||||||||||
| PG Day France | ||||||||||
| Forward Data Conference | ||||||||||
| Airflow Summit | ||||||||||
| PostgreSQL Conference Europe (PGConf.EU) |
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.
- Silver
- Bronze
- Other / unlabeled
Where they've grown or pulled back
FlatSponsored 1 conference in 2026, flat from 1 in 2025.
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.
Steady 1
Sponsored in most years of its span at the same tier.
- pgDay Parisevery year 2019–20, unranked tier
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).
- Wrike0.99
- OpenSource DB0.97
- Data Bene0.96
- PGX, Inc.0.96
- Redpill Linpro0.96
- Postgres Professional0.96
- Data Egret0.95
- PostgreSQL Experts, Inc0.95
17 Cluster: PGDays & regional Postgres events · PostgreSQL Conference Europe circuit →
Often sponsors alongside
Companies that sponsored the same events, by number of shared events (out of 4 this company sponsored).
| Company | Shared events | Share |
|---|---|---|
| Dalibo | 4 | 100% |
| Amazon Web Services | 3 | 75% |
| LOXODATA | 3 | 75% |
| 2ndQuadrant | 2 | 50% |
| Crunchy Data | 2 | 50% |
| Data Bene | 2 | 50% |
| EDB | 2 | 50% |
| EDF | 2 | 50% |
| MAIF | 2 | 50% |
| Navicat | 2 | 50% |
| PostgreSQL Experts, Inc | 2 | 50% |
| Citus Data | 1 | 25% |
| Command Prompt | 1 | 25% |
| Fretlink | 1 | 25% |
| GITC Pro Limited | 1 | 25% |
Neighborhood: companies with nearby conference footprints
Leboncoin (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.
Sponsorships 4
| Event | Date | Place | Tier as listed | Normalized tier |
|---|---|---|---|---|
| PG Day France 2026 | Jun 3–4, 2026 | Toulouse, France | Silver | Silver |
| PG Day France 2025 | Jun 3–4, 2025 | Mons, Belgium | Supporter | Bronze |
| pgDay Paris 2020 | Mar 26, 2020 | Paris, France | Partner | Other |
| pgDay Paris 2019 | Mar 12, 2019 | Paris, France | Partner | Other |
Speakers 7
| Speaker | Event | Role | Talk | Links |
|---|---|---|---|---|
| Céline To | Forward Data Conference 2026 | speaker | Towards self-serve analytics: a year of data transformation at leboncoin | — |
| Julien Jouhault | Forward Data Conference 2025 | speaker | Innover discrètement, impacter massivement: faire de l’IA un moteur d’entreprise | Video |
| Naeva Mallet | PG Day France 2025 | speaker | Comment déplacer une base Postgres avec zéro downtime ? | Slides |
| Hussein Awala | Airflow Summit 2023 | workshop | Contributing to Apache Airflow | — |
| Flavio Henrique Araque Gurgel | PGConf.EU 2022 (12th PostgreSQL Conference Europe) | speaker | Building a Cross-Entreprise Workgroup to promote PostgreSQL | Slides |
| Fabrice Vaillant | pgDay Paris 2020 | speaker | From a legacy relational DB to an event queue | — |
| Flavio Henrique Araque Gurgel | pgDay Paris 2019 | speaker | Large databases, lots of servers, on premises, on the cloud - get them all! | Slides |