ID5, the London and New York identity company, has sold the third-party audience data business and the TrueData brand it picked up when it bought TrueData in late 2025, according to a company post dated October 1, 2026. The buyer is Cloud Technologies, which will run the business in North America under the TrueData name as a wholly owned subsidiary. ID5 keeps the identity graph, the team and the US expertise that were the stated reasons for the original deal. No price was disclosed.

In Short

Last year ID5 bought a company called TrueData, and now it has sold one piece of it, the part that sold audience data, along with the TrueData name, to a company called Cloud Technologies. This matters to anyone buying or selling ads with identity data, because ID5 is telling the market it wants to be a referee that owns no audiences rather than a player selling them. The identity tools ID5 already provides stay with ID5, while the TrueData audience segments now come from a different owner.

What changed hands

The ID5 post, titled "Staying Focused on Identity" and dated October 1, 2026, is short. It opens with the transaction itself: "Today, Cloud Technologies announced that it has acquired TrueData's third-party audience business, along with the TrueData brand." According to ID5, the audience business "will keep operating under the TrueData brand in the North American markets as a wholly owned subsidiary of Cloud Technologies."

The post draws a line between two activities that sat inside the same company. "Alongside its identity business, TrueData also operated a third-party audience data business; this is the part of the company, together with the brand, that Cloud Technologies has acquired," according to ID5. The identity side stays. ID5 now refers to its 2025 target as "the company formerly known as TrueData", a phrase that reflects the fact that the name itself has moved to the new owner.

Mathieu Roche, co-founder and chief executive of ID5, described the deal on LinkedIn as completed. "I'm happy to annouce that ID5.io has completed the sales of the former TrueData 3P audience marketplace business to Cloud Technologies S.A.," he wrote, typos included. He characterised the unit as minor. "This activity was a small part of TD's overall business and wasn't strategic for ID5," Roche wrote. "It will now operate in the US as TrueData and under the leadership of newly appointed CEO Ophelia Livingstone."

Several details are absent from both documents. Neither gives a price, the revenue of the audience unit, the number of staff moving to Cloud Technologies, or whether any data-sharing arrangement between the identity graph and the audience marketplace survives the split. "Small part" is Roche's characterisation and is not quantified.

Small inconsistencies in the record

Two minor discrepancies sit in the source material. ID5's post places the business "in the North American markets", while Roche's post says it "will now operate in the US". And Roche's post names the new chief executive as Ophelia Livingstone, then closes with "Welcome Olivia and thanks to Piotr Prajsnar and the rest of the Cloud team for this partnership!" Comments beneath the post, from Zach Rosen and Eric Shaffer, address Ophelia Livingstone, which suggests "Olivia" is a slip rather than a second appointee. The LinkedIn capture shows the post marked as edited, with 225 reactions, 14 comments and 6 reposts at the time it was saved.

The neutrality argument

The substance of ID5's post is an argument about position rather than finance. "Operating in the audience market has never been part of ID5's strategy," according to the company. "As an independent identity provider, our role is to be a neutral foundation the whole ecosystem can build on. That role only works if we have no stake in the outcome: no audiences to sell, no media to buy, and no incentive to put our own interests ahead of theirs."

That reasoning has a commercial logic. An identity graph is sold to platforms, data companies and media owners that frequently compete with one another. A supplier that also sells audience segments competes with some of its own customers, the data broker businesses and data platforms that license IDs to build and match their own segments. Remove the audience business and the conflict goes with it.

The company frames the divestiture as a resource decision too. "The divestiture allows ID5 to focus its resources where they matter most: creating effective identity resolution that enables greater reach and stronger measurement across every channel, for every partner that relies on us," according to ID5.

Roche pushed the same point in sharper terms. "With this transaction, ID5 reaffirms its positioning as an open identity infrastructure supporting all Data & Media businesses," he wrote. "At a time when it's becoming increasingly difficult to deal with the legal and technical challenges of recognizing users for digital advertising, brands & publishers need a trusted, neutral partner who focuses on solving these challenges for the wider industry. We're here for it!"

Is the claim that audiences were "never" part of the strategy consistent with buying a company that ran an audience business? Strictly, yes: an acquirer can take on a unit it does not want and sell it later. But the 2025 materials did not flag the audience marketplace as non-core at the time, which leaves the October 2026 statement as the first public account of how ID5 viewed it.

What ID5 said it was buying in 2025

The original transaction was presented in different language. ID5's announcement, which carries the dateline "London / New York, 30th October 2025" on a page dated 4 November 2025, described TrueData as "a top-tier US-based identity graph company". PPC Land covered the acquisition in November 2025, reporting a November 4 announcement date, which matches the page date rather than the dateline. Financial terms were not disclosed then either. Progress Partners acted as exclusive financial adviser to TrueData, according to the 2025 announcement.

The 2025 text does not mention a third-party audience marketplace at all. It focused on the graph. "By bringing in TrueData's graph, the company is expanding its operations in the US and strengthening its Adaptive Identity technology with new datasets and expertise," according to ID5. The combination of TrueData's graph with the GDPR-compliant ID5 Graph and the company's alternative ID, the announcement said, "creates a unique proposition in the market, connecting offline data with the largest online reach to strengthen recognition, activation, and measurement across channels."

The announcement also stressed product integration. "Many companies already use both ID5 and TrueData products independently. The merger will bring these offerings together into one unified solution, removing complexity and unlocking greater value for shared clients," according to ID5. The company said it would "bring to market the most comprehensive identity offering in the industry." It added that the merged companies "will operate under the ID5 brand name and be guided by its established privacy principles and governance frameworks."

That last commitment explains how the TrueData brand became available to sell. If the merged company was always going to trade as ID5, the TrueData name had no role inside it. Its value lay with whichever business continued to sell under it, which turned out to be the audience marketplace.

The quotes from 2025

Roche's statement at the time framed the deal as an expansion of scope. "ID5 is already widely recognised as a leading universal ID vendor. By bringing in the expertise of TrueData, we are expanding our capabilities and the scope of services we can offer to our clients and partners," he said in the 2025 announcement. "This acquisition strengthens our presence and our ability to serve the US market, and positions us as the global, privacy-first identity partner the industry needs."

Scott Conine, then TrueData's chief executive, used the vocabulary ID5 deploys again in 2026. "Our companies share the same purpose and operate with the same values of neutrality and collaboration," Conine said. "This is a true merger of strengths, bringing together complementary products, teams, and cultures to create a more complete identity partner for the ecosystem."

Two investors were quoted as well. Sanja Partalo, co-founder and managing partner at S4S Ventures and an ID5 board member, said the acquisition "accelerates their mission, expanding ID5's global footprint and strengthening its position as the identity partner of choice for the ecosystem." S4S Ventures co-led ID5's $20 million Series B round in April 2024 alongside TransUnion. Jodi Sherman Jahic, co-founder and managing partner at Aligned Partners and a TrueData board member, said: "I've seen how powerful TrueData's products can be in driving client outcomes across the advertising ecosystem." The word "products" is plural, and the 2026 sale shows that at least one of them is now outside ID5.

Where the people went

Under the 2025 deal, Conine was to join ID5's executive team as strategic adviser, and Jon Durkee, TrueData's president and chief operating officer, was to become chief revenue officer. The combined company had "around 80 employees across North America, Europe, and Asia," according to ID5 at the time.

The LinkedIn material captured with Roche's post suggests at least part of that arrangement held. Jonathan Durkee appears in the "more profiles" sidebar of Roche's page with the headline "CRO @ ID5 | Advisor | 2x Exit | Identity & AdTech." Neither 2026 document says whether Conine remains in his advisory role, or how many of the roughly 80 staff, if any, transferred with the audience unit.

The audience business gets new leadership instead. Roche names Ophelia Livingstone as the newly appointed chief executive of TrueData under Cloud Technologies ownership, and thanks Piotr Prajsnar and "the rest of the Cloud team". Neither document describes Cloud Technologies beyond its legal suffix, S.A., and its role as acquirer. Neither says what the buyer intends for the TrueData audience segments outside North America.

Timing, and the Safari backdrop

The sale lands in a difficult stretch for identity vendors. Roche's reference to "the legal and technical challenges of recognizing users" arrives days after two ID5 domains appeared on a list of blocked requests in Apple's latest browser. PPC Land traced the block to an eleven-line WebKit change merged in February 2026. The domains id5-sync.com and eu-1-id5-sync.com sit on that list alongside adsrvr.org from The Trade Desk, uidapi.com for Unified ID 2.0, two LiveRamp domains, permutive.com and ad.gt, the Audigent domain. The list surfaced on September 21, 2026, when Ian Meyers of The Trade Desk filed WebKit bug 324771, a week after iOS 27 began rolling out on September 14.

The same topic appears in the feed captured alongside Roche's profile. A post from Andrew Kraft, shown in Roche's activity, promotes "Kraftisms #54" with the line: "Apple blocked The Trade Desk, ID5, LiveRamp, and Permutive with eleven lines of code." Roche's own commentary on the episode is not among the attached documents.

There is no stated link between the Safari change and the divestiture. A sale of this kind takes longer to negotiate than the ten days between the bug report and ID5's post, and neither ID5 nor Roche connects the two. What the timing does show is the setting in which ID5 chose to describe itself as "open identity infrastructure": a period when browser vendors are removing the signals that such infrastructure depends on.

Safari has been a recurring problem for ID5. In December 2024 the company and OpenX reported a 58% increase in Safari desktop reach and 37% on mobile web from an integration that mapped ID5 identifiers to the OpenX graph, figures that were supplied by the two companies. Blocking requests to ID5's own sync domains is a more basic obstacle than the cookie restrictions that integration was designed to work around.

Why identity companies keep reshuffling

The direction of travel is unusual. More often, identity companies have added data and activation businesses, not shed them. When Experian acquired Audigent in December 2024, the stated rationale was to add a data activation and identity platform with publisher first-party data to Experian's marketing infrastructure, combining sell-side distribution with demand-side capabilities. ID5 is moving the other way, narrowing its business to the identifier and the graph.

The market ID5 operates in is crowded. As far back as February 2022, IAB Australia listed 47 identity providers that advertisers work with, a list that included both ID5 and TrueData as separate entries. Consolidation since then has tended to fold identity into larger data companies. ID5's pitch is that a company holding no audiences and buying no media is a safer partner for publishers, data platforms and agencies that do both.

For marketers, the practical consequence is a change of counterparty rather than a change of product. Advertisers and platforms that licensed TrueData audience segments now deal with a subsidiary of Cloud Technologies under the same brand. Those using ID5's identifier or graph continue to deal with ID5. Clients that used both, the group the 2025 announcement described as "shared clients" who would benefit from "one unified solution", are back to two suppliers for the audience side.

Open questions

Several matters remain unaddressed by the documents. The financial terms of both transactions are undisclosed. The size of the audience business, which Roche calls "a small part", is not given in revenue, client or headcount terms. It is not stated whether the TrueData audience segments will continue to rely on any data or match tables from the graph ID5 retained, or whether that relationship ends with the sale.

There is also the question of what remains of TrueData's 2025 promise. The 2025 announcement said the combination would connect "offline data with the largest online reach". ID5 has kept the graph assets that support that claim. The audience marketplace, which turned offline and online signals into sellable segments, is now someone else's business.

ID5's own closing line is brief. "We wish the Cloud Technologies team every success as they take TrueData's third-party audience business forward," according to the company.

Timeline

Summary

Who: ID5, the identity provider led by co-founder and chief executive Mathieu Roche, and Cloud Technologies S.A., which bought the TrueData third-party audience business and brand. Ophelia Livingstone has been named chief executive of TrueData under its new owner.

What: ID5 sold the third-party audience marketplace and the TrueData name that came with its 2025 acquisition of TrueData, keeping the identity graph and related assets. No price was disclosed.

When: ID5's post on the sale is dated October 1, 2026. The original TrueData acquisition carried an October 30, 2025 dateline and was published on November 4, 2025.

Where: The audience business will operate in North America, or the US according to Roche, as a wholly owned subsidiary of Cloud Technologies. ID5 is based in London and New York.

Why: According to ID5, an independent identity provider can only act as a neutral foundation if it has "no audiences to sell, no media to buy". Roche described the audience unit as a small part of TrueData's business that was not strategic for ID5.