On April 30, 2025, at OpenSearchCon EU in Amsterdam, the Linux Foundation announced that ByteDance, DataStax, DTEX and Seacom Srl had joined the OpenSearch Software Foundation as General Members. The announcement characterized the four organizations as bringing experience from consumer technology, AI and open-source data, insider-risk management, and open-source consulting and training.
Who joined the OpenSearch Software Foundation?
| Organization | Description in the Foundation announcement |
|---|---|
| ByteDance | A consumer-technology company founded in 2012, with a stated mission to inspire creativity and enrich life. |
| DataStax | An AI platform company helping enterprises and developers build AI applications with open-source technologies including Langflow and Apache Cassandra. |
| DTEX | An insider-risk management company whose approach combines behavioral science and artificial intelligence. |
| Seacom Srl | An IT-services company providing open-source consulting and training for enterprises, institutions and public administrations. |
These are descriptions supplied by the Linux Foundation’s April 30, 2025 announcement, not independent product evaluations. Membership alone does not establish that each organization sells OpenSearch products or contributes a specific amount of code.
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The announcement quoted OpenSearch Software Foundation Governing Board Chair Carl Meadows welcoming the four companies. ByteDance’s Willem Jiang said search and analytics at ByteDance operate at “immense scale” and that open source supports innovation and speed. DataStax Chief Product Officer Ed Anuff called open-source data technologies foundational to modern real-time, AI-powered applications. DTEX CEO Marshall Heilman said the company intended to expand its support, while Seacom CEO Stefano Pampaloni linked the membership to the company’s open-source consulting mission.
What does General Member mean?
According to the announcement, General Members engage with working groups, contribute to technical initiatives and help guide the Foundation’s strategic direction. That describes participation opportunities; it does not promise a particular contribution volume, an individual veto, or control over the OpenSearch project.
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The OpenSearch Foundation operates as a Linux Foundation project intended to support OpenSearch. A Governing Board administers the Foundation and its budget. The Foundation explicitly says it provides infrastructure and other resources for long-term sustainability but is not responsible for technical oversight of the OpenSearch open-source project. Technical governance and Foundation administration are therefore separate.
How the membership tiers are organized
The Foundation’s membership page lists three tiers. Fees and terms can change, so organizations should verify the live page before relying on these figures.
| Tier | Published fee or condition | Stated governance detail |
|---|---|---|
| Premier | $150,000 per year | Includes a board appointment right. |
| General | $5,000 to $100,000, depending on consolidated headcount | Participation through working groups, technical initiatives and strategic guidance, as described in the announcement. |
| Associate | No fee for nonprofit organizations | Terms are set out on the Foundation membership page. |
Why these additions matter for OpenSearch
The four members broaden the types of organizations represented around OpenSearch: a large consumer-technology company, an AI and data-technology vendor, an insider-risk specialist and an open-source services provider. That mix can widen the practical perspectives available in working groups and strategic discussions, but the announcement does not claim that the companies have delivered particular features or performance improvements.
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Scan for outdated or missing drivers - takes under a minuteDriver Scan →Repair Windows errors before they cause bigger problemsFix Now →OpenSearch is described by the Linux Foundation as open-source software for search, analytics, observability and vector-database applications. The Foundation itself was established under the Linux Foundation in September 2024 to provide organizational infrastructure for the project.
What is known about the membership status today?
This is historical membership news rather than a current, complete roster. In an announcement dated September 22, 2026, OpenSearch said Adelean, Intel and Sidecar had become new General Members, and identified Seacom and Sidecar as certified Long Term Support providers. That later announcement does not say that ByteDance, DataStax or DTEX departed, nor does it confirm that they remain members. The 2025 announcement should therefore be read as a record of the four companies’ entry at that time.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Community scale reported after the first year
In its first-year retrospective, OpenSearch reported a 78% year-over-year increase in downloads, more than 1 billion total downloads, more than 400 active contributing organizations and more than 8,800 contributions. The retrospective counted 16 Foundation member organizations and included ByteDance, DataStax, DTEX and Seacom among the additions. These figures are OpenSearch’s reported totals, not an independent audit.
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Primary announcements
- Linux Foundation announcement, April 30, 2025
- OpenSearch Software Foundation membership and governance information
- OpenSearch announcement, September 22, 2026
- OpenSearch first-year retrospective
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