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There is no single authoritative, exhaustive list of every technology-company merger and acquisition each year. Annual M&A lists are useful only when they state their scope, distinguish announced deals from completed ones, and preserve the exact terms attached to any disclosed value. The examples below show how to read and build a sourced list; they are representative, not a global deal census, with information current through October 9, 2026.
What belongs in an annual technology M&A list?
A useful list starts with its rules, not its deal count. “Technology company” can include software, hardware, cybersecurity, data, communications, and financial-technology businesses, but the boundary is editorial. A list focused on one acquirer, such as Cisco’s Acquisitions by Year, is not comparable to a global or multi-company list.
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For the examples here, the year is the calendar year in which the transaction was announced; geography is not restricted; technology is interpreted broadly to include technology-enabled and fintech capabilities; and there is no minimum deal-size threshold. Announced, pending, and completed transactions may be included, but their status must be labeled as of the stated cutoff. These are scope choices, not a claim that every qualifying transaction has been captured.
- Announcement date: when the parties publicly announce the transaction.
- Completion date: when the deal closes, if it has closed.
- Status at cutoff: for example, announced, pending review, or completed. An intent to acquire is not proof of a completed transaction.
- Value: quote the source’s wording and definition rather than treating unlike figures as interchangeable.
- Rationale: describe the capability the buyer says it is acquiring, without presenting expected benefits as proven results.
Use a stated cutoff date because status can change after an announcement. Cisco’s year-organized index is a useful way to discover entries, but its issuer-specific listings still need to be checked against the linked announcements for what happened and when.
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Selected technology-related deals by year
The following examples illustrate how to record source-backed transactions. They do not constitute a complete list for either year.
| Year | Parties and dates | Status at October 9, 2026 | Disclosed value | Capability or stated rationale |
|---|---|---|---|---|
| 2025 | S&P Global acquired TeraHelix; completed June 6, 2025. Announcement date not stated in the cited annual report. | Completed, according to S&P Global’s 2025 annual report. | Not stated in the cited annual report. | TeraHelix is described as a privately held financial-technology firm whose frameworks structure enterprise data models for interoperability across platforms, systems, and storage architectures. Source |
| 2025 | S&P Global acquired With Intelligence from Motive Partners; completed November 25, 2025. Announcement date not stated in the cited annual report. | Completed, according to S&P Global’s 2025 annual report. | $1.8 billion, as reported by S&P Global. | S&P Global described combining With Intelligence’s proprietary data, benchmarks, and workflow solutions with its private-markets expertise. Source |
| 2026 | Parsons acquired Altamira Technologies; announced January 15, 2026. A completion date is not stated in the cited announcement. | Acquired, according to Parsons’ announcement. The announcement does not provide a separate completion date. | “Up to $375 million,” Parsons’ stated transaction value; this is a qualified maximum, not an unconditional cash price. | Parsons said Altamira adds analytics, signals intelligence, cyber, missile-warning, and space capabilities. Source |
How to check a deal’s status and value
Separate the stages
A company may announce an intention, sign an agreement, obtain regulatory clearance, and close a transaction on different dates. Record those events separately when the sources establish them. Do not convert an announcement or an intent-to-acquire entry into a completed acquisition without confirmation. For a retrospective list, an acquirer’s annual report can verify which deals it says it completed; an issuer’s acquisition index can help locate the relevant announcements.
Preserve the source’s value language
Deal values may refer to different things, including enterprise value, equity value, contingent consideration, or a maximum possible amount. If a source says “up to,” retain that qualifier. If it does not disclose a value, write “not stated” rather than estimating one or implying that the transaction had no value.
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Acquirers often explain which products, customers, or capabilities they expect a deal to add. That rationale is useful context, but it does not establish that projected synergies were achieved or that integration succeeded. For example, Parsons chair, president, and CEO Carey Smith called Altamira a “strategic accelerator” for the company’s national-security growth strategy, describing the expected value from the company’s perspective. Parsons’ announcement is the source for that characterization.
Why an announced deal may not close
Regulatory review is one reason a proposed transaction may remain pending or change before completion. The U.S. Federal Trade Commission says merger review is intended to prevent transactions likely to reduce competition through higher prices, lower quality, or less innovation, and that it may take formal action when necessary. Its overview explains the agency’s role: FTC merger review. A pending review should therefore be reported as pending, not treated as a completed deal or a guaranteed failure.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.How to build and compare annual M&A lists
- Define the scope. State geography, calendar or fiscal year, what qualifies as a technology company, any deal-size threshold, and whether the list covers announced, pending, or completed transactions.
- Set a cutoff date. Status is time-sensitive; say when the list was checked and update it if a deal later closes, is blocked, or is abandoned.
- Find candidate deals. Search company investor-relations announcements and filings. Use year-based issuer indexes as discovery tools, not as substitutes for deal-level verification.
- Verify each entry. Prefer dated company announcements or filings for transaction terms and dates. Use annual reports to corroborate acquisitions the company says it completed.
- Record comparable fields. Capture parties, announcement date, completion date if known, status at cutoff, value with its exact qualification, and a short capability or rationale description.
- Compare like with like. Check each list’s geography, sector definition, year basis, threshold, status rules, source hierarchy, and value treatment before comparing totals.
Counts from differently scoped sources are not market totals. WilmerHale’s 2026 report refers to 55+ M&A transactions in 2025 and $35B+ in aggregate value among selected transactions and work associated with the firm. Those figures describe WilmerHale’s selected activity, not all technology-company deals or the whole M&A market. WilmerHale’s report
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