Maintains the IDS Reference Architecture Model (IDS-RAM, currently v4.2.0; its repo was archived June 2025, successor “in development”) — a connector-based data-sovereignty standard where data stays with the provider and access is enforced via a usage-control language extending the W3C ODRL standard, rather than by pooling data centrally. Conceptually the closest of all researched data-exchange-standards bodies to SINE’s own sovereignty-preserving philosophy, though IDSA’s mechanism is connector/policy-based rather than cryptographic (MPC).
Standardization nuance: DIN SPEC 27070 (Feb 2020) standardizes the security-gateway/connector component specifically — a German national pre-standard, not a full ISO/IEC ratification of IDS-RAM as a whole; claims elsewhere that “IDS is ISO-standardized” overstate this.
Org form & funding
International Data Spaces e.V. (Amtsgericht Dortmund, VR 7938); grew from a Sept 2015 “Industrial Data Space” initiative convened by ~11 Fraunhofer institutes. Founding research grant: €4.876 million (BMBF project 01IS15054, Oct 2015–Sept 2018, to Fraunhofer-Gesellschaft) — confirmed via a FragDenStaat freedom-of-information request, the single highest-confidence funding figure across the entire data-exchange-standards research set. 18 founding members (Feb 2016) incl. Allianz, Atos, Bayer HealthCare, Bosch, Fraunhofer. 2020 revenue reported as €2.2M in German filings (not independently re-verified against the primary filing).
Contradiction on the founding grant ⟨2026-10-27⟩. The OECD (2026) states (§4.3) that the IDSA-RAM “originated from publicly funded research (approximately EUR 10 million from the German Federal Ministry of Education and Research) carried out by the Fraunhofer Institutes”. That is roughly double the €4.876 million recorded above for BMBF project 01IS15054, which came from a FragDenStaat freedom-of-information response and is the highest-confidence funding figure in the research set. Recorded, not resolved. ⟨Inference: the two are not necessarily inconsistent — 01IS15054 ran Oct 2015–Sept 2018 and funded the Industrial Data Space research project; BMBF also funded successor and adjacent Fraunhofer work, and the OECD gives no project number, so “approximately EUR 10 million” may aggregate several grants. But the OECD cites no source for it and it is the kind of round number that travels without provenance. Treat €4.876m as the figure for 01IS15054 specifically, and the OECD’s EUR 10m as an unsourced aggregate claim about total BMBF investment in the architecture.⟩
Governance
Board (per current imprint): Chairman Dr. Reinhold Achatz; Deputy Chairman Prof. Dr. Boris Otto (Fraunhofer ISST — who also co-chairs Catena-X’s board, a direct personnel overlap illustrating how concentrated German data-space governance leadership is); Treasurer Ulrich Ahle (also on Gaia-X’s leadership). Working groups: Architecture, Rulebook, Certification, Standardization, Training.
Scale
IDSA’s own materials inconsistently claim “more than 140” / “150+” / “160+” members across 28 countries — no single authoritative dated count found. The OECD’s 2026 data spaces report adds a further variant: “more than 140 member organisations” (Ch. 1, endnote 2 ⟨corrected 2026-10-29: cited here as Ch. 4, endnote 2, which is the Holmström moral-hazard reference⟩), which is the low end of the range and is itself undated. The opacity is now four-way.
Relationship to Gaia-X and Catena-X
Founding member of Gaia-X AISBL; co-founder (with BDVA, FIWARE Foundation) of the Data Spaces Business Alliance (Munich, Sept 2021) and a participant in the Data Spaces Support Centre (Digital Europe Programme grant 101083412, €10M, 12 partners incl. MyData Global). All “complementary, not competing” framing between IDSA and Gaia-X is joint-PR-sourced; the Bundeskartellamt’s neutral Catena-X clearance is the only independent confirmation of the practical relationship.
The Radar — IDSA’s registry, and what it shows ⟨2026-10-27⟩
IDSA operates the Data Spaces Radar (dataspaces-radar.org), the only
public registry of data space initiatives and therefore the empirical base
for nearly all quantitative claims about the field — including the
OECD’s 2026 report, which uses a
February 2026 export:
- 235 entries, up from 87 in 2022 — the field is growing fast.
- 128 (54 %) at implementation stage, 25 (11 %) operational, zero scaling.
- EU funding: 46.1 % of implementation-stage initiatives, ~20 % of operational ones.
- Of 96 initiatives reporting an access model, two charge a fee.
- EDC is used by about a third of operational initiatives; the FIWARE connector appears in ~20 % overall and in none of the operational ones.
Two things follow for how we read IDSA. First, the registry is the sector’s own best evidence that the sector does not yet work — one in nine entries operational, none scaling. Second, IDSA runs it, which the OECD flags directly: registration is voluntary, European-biased, and non-IDSA stacks may simply not register; ~50 % of entries lack geographic focus, 58 % lack funding source, 78 % lack start dates; failed initiatives can remain listed as operational. ⟨Inference: the FIWARE-to-zero result in particular should be read with that in mind — a registry operated by one standards body showing a rival implementation vanishing at the operational stage is exactly the result that selection bias would also produce. The OECD says as much.⟩
The OECD also traces the widely quoted EUR 1.7 billion of EU public investment in data spaces to a Gaia-X AISBL funding portfolio first published by Otto and Tardieu (2025) in Le Grand Continent, noting that “both authors hold or held board positions at Gaia-X AISBL and IDSA” and that there is no published methodology. Boris Otto’s dual role — already recorded above as an IDSA/Catena-X overlap — now also sits behind the headline number used to argue for continued public funding of the field. ⟨Inference: this is not an accusation of bad faith; the OECD treats the figure as a usable order of magnitude. It is a caution that the field’s central funding statistic, its registry, and its reference architecture all trace back to an overlapping set of people.⟩
The report’s broader finding about the architecture is that IDS-RAM/DSP mandates the full stack, including a contract-negotiation layer even where the policy is fully permissive (“no operation”), and that “binding usage control to a single, institutionally derived protocol can create a bottleneck for market adoption” — contrasted with Japan’s ODS-RAM, which makes contracting optional and prescribes only interfaces. Standardisation is moving the IDSA-derived protocols forward regardless: ISO/IEC DIS 26450 (Eclipse Dataspace Protocol) and DIS 26451 (Decentralised Claims Protocol) are in ISO/IEC JTC1 SC38, and the same protocols appear in the CEN/CENELEC EN 18235 series, making them the de facto technical baseline for Data Act Article 33 compliance.
Strategic relevance to SINE
IDSA’s usage-control/connector model and SINE’s MPC-based approach solve the “keep data sovereign while enabling use” problem via different technical means — worth a direct technical comparison in future strategy work. IDSA’s membership-count opacity and multi-body overlap (same people chairing IDSA and Catena-X) is a caution against assuming clean differentiation exists between adjacent “data sovereignty” standards bodies even when they publicly claim to be complementary.
Sources
sources/research/2026-08-05-competitor-data-exchange-standards.md(IDSA section; live web research, 2026-08-05).sources/research/2026-10-27-oecd-data-spaces-co-ordination-viability-public-policy/2026-10-27-oecd-data-spaces-co-ordination-viability-public-policy.md(§1.1, §3.3, §4.3, Box 1.1, Box 2.1, endnotes) — Radar figures, the EUR 10m founding-grant claim, the EUR 1.7bn provenance note. See the paper page.