ProOpenSource OÜ
Circuit mix
Where ProOpenSource OÜ 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 databases100%13 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 |
|---|---|---|---|---|---|---|---|---|---|---|
| PostgreSQL Conference Europe (PGConf.EU) | ||||||||||
| PGConf.DE (PostgreSQL Conference Germany) | ||||||||||
| pgDay Paris | ||||||||||
| Nordic PGDay | ||||||||||
| PGDay UK | ||||||||||
| FOSDEM PGDay | ||||||||||
| PGDay/MED |
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
- Other / unlabeled
Where they've grown or pulled back
DownNothing recorded in 2026; sponsored 4 conferences 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.
Steady 2
Sponsored in most years of its span at the same tier.
- PGConf.DE (PostgreSQL Conference Germany)every year 2022–23, Bronze
- PostgreSQL Conference Europe (PGConf.EU)every year 2022–24, Bronze
Once or on and off 3
No clear direction, or a gap we can’t confirm because later sponsor lists are incomplete.
- Nordic PGDayonce, 2022, Community tier
- pgDay Parisonce, 2023, Community tier
- PGDay UKonce, 2023, Community tier
Not on the company map: lookalikes are computed only for companies present at four or more conferences.
Often sponsors alongside
Companies that sponsored the same events, by number of shared events (out of 8 this company sponsored).
| Company | Shared events | Share |
|---|---|---|
| EDB | 7 | 88% |
| CYBERTEC | 6 | 75% |
| Crunchy Data | 5 | 63% |
| dbi services | 5 | 63% |
| Instaclustr | 5 | 63% |
| Dalibo | 4 | 50% |
| Data Bene | 4 | 50% |
| Data Egret | 4 | 50% |
| LOXODATA | 4 | 50% |
| Microsoft | 4 | 50% |
| Percona | 4 | 50% |
| Pro Open | 4 | 50% |
| Aiven | 3 | 38% |
| Amazon Web Services | 3 | 38% |
| DBtune | 3 | 38% |
Sponsorships 8
| Event | Date | Place | Tier as listed | Normalized tier |
|---|---|---|---|---|
| PGConf.EU 2024 (14th PostgreSQL Conference Europe) | Oct 22–25, 2024 | Athens, Greece | Bronze | Bronze |
| PGConf.EU 2023 (13th PostgreSQL Conference Europe) | Dec 12–15, 2023 | Prague, Czechia | Bronze | Bronze |
| PGDay UK 2023 | Sep 12, 2023 | London, United Kingdom | Supporter | Community |
| PGConf.DE 2023 | Jun 27, 2023 | Essen, Germany | Bronze | Bronze |
| pgDay Paris 2023 | Mar 22–23, 2023 | Paris, France | Supporter | Community |
| PGConf.EU 2022 (12th PostgreSQL Conference Europe) | Oct 25–28, 2022 | Berlin, Germany | Bronze | Bronze |
| PGConf.DE 2022 | May 13, 2022 | Leipzig, Germany | Bronze | Bronze |
| Nordic PGDay 2022 | Mar 22, 2022 | Helsinki, Finland | Supporter | Community |
Speakers 5
| Speaker | Event | Role | Talk | Links |
|---|---|---|---|---|
| Stefanie Janine Stölting | PGConf.EU 2026 (16th PostgreSQL Conference Europe) | speaker | Time Traveling PostgreSQL | Slides |
| Stefanie Janine Stölting | PGConf.DE 2025 | speaker | PostgreSQL Als Daten-Integrations-Werkzeug Mit Foreign Data Wrappern | — |
| Stefanie Janine Stölting | FOSDEM PGDay 2025 | lightning talk | Lightning talks | — |
| Stefanie Janine Stölting | PGDay/MED 2024 | speaker | Time Traveling PostgreSQL | Slides |
| Stefanie Janine Stölting | pgDay Paris 2019 | speaker | PostgreSQL As Data Integration Tool | Slides |