OpenSource Connections
Also listed as 2 other names
OpenSource Connections LLC · Opensource Connections LLC
Circuit mix
Where OpenSource Connections shows up, by circuit. Each event counts once: 2 if it sponsored, 1 if it only had speakers. Hover a segment for the conference.
- Open-source data infrastructure100%17 events
The year around now
Conferences where OpenSource Connections sponsored or had speakers in the past 12 months, and the announced events it is already listed for. One row per conference, January to December; hover a mark for the event and the company's role.
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 |
|---|---|---|---|---|---|---|---|---|
| Berlin Buzzwords | ||||||||
| Haystack |
Activity by year
Three measures on one year axis; each panel has its own scale.
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
DownSponsored 1 conference in 2026, down from 2 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.
Moved down 1
Best tier fell between the first and latest year with a ranked tier.
- Berlin BuzzwordsSilver 2020 → Bronze 2026
Pulled out 1
Not sponsored since 2024 or earlier, though a later event published a complete sponsor list without them.
- Haystacklast sponsored 2024; the conference ran again in 2026
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 9 this company sponsored).
| Company | Shared events | Share |
|---|---|---|
| Elastic | 6 | 67% |
| OpenSearch | 6 | 67% |
| Apple | 5 | 56% |
| Bloomberg | 5 | 56% |
| Kleinanzeigen | 3 | 33% |
| O'Reilly | 3 | 33% |
| Qdrant | 3 | 33% |
| Search Guard | 3 | 33% |
| Snowflake | 3 | 33% |
| Weaviate | 3 | 33% |
| Adelean | 2 | 22% |
| AI-Powered Search | 2 | 22% |
| Aiven | 2 | 22% |
| eBay | 2 | 22% |
| Empathy.co | 2 | 22% |
Sponsorships 9
| Event | Date | Place | Tier as listed | Normalized tier |
|---|---|---|---|---|
| Berlin Buzzwords 2026 | Jun 7–9, 2026 | Berlin, Germany | Bronze Partner | Bronze |
| Berlin Buzzwords 2025 | Jun 15–17, 2025 | Berlin, Germany | Contributor Partner | Other |
| Berlin Buzzwords 2024 | Jun 9–11, 2024 | Berlin, Germany | Contributor Partner | Other |
| Haystack US 2024 | Apr 23–24, 2024 | Charlottesville, United States | Birds of a Feather dinner sponsor | Other |
| Berlin Buzzwords 2023 | Jun 18–20, 2023 | Berlin, Germany | Contributor | Other |
| Haystack US 2023 | Apr 25–26, 2023 | Charlottesville, United States | Birds of a Feather dinner sponsor | Other |
| Berlin Buzzwords 2022 | Jun 12–14, 2022 | Berlin, Germany | Track (Search Track Partner) | Other |
| Berlin Buzzwords 2021 | Jun 14–17, 2021 | — | Track | Other |
| Berlin Buzzwords 2020 (vbuzz) | Jun 7–12, 2020 | — | Silver | Silver |
Speakers 25
| Speaker | Event | Role | Talk | Links |
|---|---|---|---|---|
| Daniel Wrigley | Haystack Europe 2026 | speaker | Search (Re)platforming for Humans and AI | Video |
| René Kriegler | Haystack Europe 2026 | speaker | Search (Re)platforming for Humans and AI | Video |
| Daniel Wrigley | Haystack US 2026 | speaker | Agentic Tuning: Search Relevance on Autopilot | Video |
| René Kriegler | Haystack US 2026 | speaker | Do we still need search engines? | Video |
| Daniel Wrigley | Haystack EU 2025 | speaker | Agentic search tuning: faster and better | Slides · Video |
| Daniel Wrigley | Haystack EU 2025 | speaker | From LLM-as-a-Judge to Human-in-the-Loop: Rethinking Evaluation in RAG and Search | Slides · Video |
| Matthias Krüger | Haystack EU 2025 | speaker | Improving Relevance in RAG - Lessons learned from the LiveRAG challenge | Slides · Video |
| Eric Pugh | Berlin Buzzwords 2025 | talk | Streamlining Search Quality: Search Relevance Workbench | Video |
| Daniel Wrigley | Haystack US 2025 | speaker | From Static to Dynamic: Data-Driven Query Understanding to Supercharge Hybrid Search | Slides · Video |
| Eric Pugh | Haystack US 2024 | speaker | Your Search Engine Needs a Memory! | Slides · Video |
| Rene Kriegler | Haystack US 2024 | keynote | Day 2 Keynote - Evolution of Moody's Search: Embracing Cloud-Native Solutions to Enable AI-Powered Product | Video |
| Scott Stults | Haystack US 2024 | speaker | Measuring and Improving the R in RAG | Slides · Video |
| Atita Arora | Haystack EU 2023 | panelist | Women of Search | Slides · Video |
| René Kriegler | Haystack EU 2023 | speaker | Strategies for using alternative queries to mitigate zero results and their application to online marketplaces | Slides |
| René Kriegler | Haystack EU 2023 | keynote | Keynote | Slides · Video |
| Atita Arora | Berlin Buzzwords 2023 | talk | Vectorize Your Open Source Search Engine | Slides · Video |
| Charlie Hull | Berlin Buzzwords 2023 | panelist | The Debate Returns (with more vectors) Which Search Engine? | Video |
| Chris Morley | Haystack US 2023 | speaker | Populating and leveraging semantic knowledge graphs to supercharge search | Slides · Video |
| Atita Arora | Berlin Buzzwords 2022 | talk | Understanding Vespa with a Lucene mindset | Video |
| Charlie Hull | Haystack US 2022 | keynote | Opening Keynote - Magicians & Jugglers: Closed & Open | Slides · Video |
| René Kriegler | Haystack US 2022 | speaker | An approach to modelling implicit user feedback for optimising e-commerce search | Slides · Video |
| Bertrand Rigaldies | Haystack Europe 2019 | keynote | Haystack Europe 2019 Keynote | Slides · Video |
| Bertrand Rigaldies | Haystack 2019 | speaker | Custom Solr Query Parser Design Option, and Pros & Cons | Slides · Video |
| Elizabeth Haubert | Haystack 2019 | speaker | Solving for Satisfaction: Introduction to Click Models | Slides · Video |
| Max Irwin | Haystack 2019 | keynote | What is Search Relevance? | Slides · Video |