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There is no single exhaustive, authoritative annual list of technology-company mergers and acquisitions in the sources cited here. A useful list needs to define its scope, distinguish announced deals from completed ones, and preserve each reported transaction value’s exact terms. The examples below show how to read and build annual technology M&A lists without treating different sources or deal statuses as equivalent.
What an annual technology M&A list should cover
Before comparing acquisitions by year, define what qualifies for inclusion. The choices affect which deals appear and whether two lists can be compared fairly.
- Geography: State whether the list covers a particular country or region, or transactions worldwide.
- Year basis: Say whether the year is the calendar year of announcement, signing, or completion. If a source reports on a fiscal year, identify it as such rather than treating it as a calendar-year list.
- Technology definition: Explain which businesses count as technology companies. A list might include software, data, cybersecurity, semiconductors, or financial technology, but should not imply a universal definition.
- Inclusion threshold: State whether deals of every size qualify or whether the list has a minimum disclosed value.
- Transaction status: Include labels such as announced, pending, or completed, and say whether the list includes intentions to acquire.
- Cutoff date: Give the date through which status was checked. A deal that is pending at publication may later close, be amended, or be abandoned.
The available examples support a method and selected entries, not a complete global deal census. Cisco’s Acquisitions by Year page is an issuer-specific discovery index, while S&P Global’s annual report retrospectively describes that company’s own acquisitions. Neither is a market-wide directory.
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A transaction can pass through several distinct events: an announced intention, a signed agreement, regulatory review, and closing. These terms are not interchangeable. Record each deal’s announcement date and completion date separately when the sources provide them; label the status as of the list’s cutoff date.
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Cisco’s year-organized index includes an intent-to-acquire entry, illustrating why an index entry alone does not establish that a transaction closed. Follow the entry to the underlying company announcement or filing and confirm the latest status. The Federal Trade Commission explains that 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. Regulatory review can therefore affect whether an announced transaction completes.
Examples of technology-related acquisitions
The following entries illustrate how to preserve dates, status, value qualifiers, and strategic context. They are examples, not a complete annual list.
| Transaction | Announcement and completion | Status and disclosed value | What the buyer said it gained |
|---|---|---|---|
| S&P Global / With Intelligence | Completed November 25, 2025; the cited annual report does not state an announcement date. | Completed. S&P Global reported a price of $1.8 billion. | Proprietary data, benchmarks, and workflow solutions that complement S&P Global’s private-markets expertise. |
| S&P Global / TeraHelix | Completed June 6, 2025; the cited annual report does not state an announcement date. | Completed. The cited report does not state a transaction value. | Enterprise data-model frameworks intended to support interoperability across platforms, systems, and storage architectures. S&P Global described TeraHelix as a privately held financial technology firm. |
| Parsons / Altamira Technologies | Announced January 15, 2026; the announcement says Parsons had acquired Altamira. | Acquired. The transaction was valued “up to $375 million”; that is a maximum stated value, not an unconditional price. | Analytics, signals intelligence, cyber, missile-warning, and space capabilities for Parsons’ national-security work. |
Sources: S&P Global 2025 annual report and Parsons’ January 15, 2026 announcement. The completion dates and values above reflect those sources; they do not establish that every relevant deal in those years is listed here.
How to compare annual M&A lists
Counts and totals are meaningful only when the lists use comparable definitions. Check these dimensions before treating two annual lists as competing measures of the same market:
- Geographic coverage and definition of a technology company.
- Calendar-year or fiscal-year basis, and whether the year follows announcement or completion.
- Minimum deal size and treatment of undisclosed values.
- Inclusion of intended, announced, pending, and completed transactions.
- Cutoff date and source hierarchy, including whether entries link to original announcements or filings.
- How values are described: for example, “up to” value, enterprise value, equity value, or contingent consideration.
For example, WilmerHale’s 2026 report refers to 55-plus transactions and more than $35 billion in aggregate value for selected transactions and work in 2025. Those figures describe WilmerHale’s selection and work, not a market-wide count or total for technology M&A. They should not be used as sector totals.
A practical method for building a sourced annual list
- Set and publish the scope. Define geography, technology categories, year basis, size threshold, transaction statuses, and cutoff date before collecting entries.
- Find candidate deals. Use issuer acquisition indexes, such as Cisco’s, to discover dated entries. Treat indexes as starting points, not final proof of deal status.
- Verify each transaction against a dated primary source. Use the buyer’s announcement, a regulatory filing, or an annual report. For retrospective lists, an annual report can confirm acquisitions the company says it completed.
- Record event dates and status independently. Enter the announcement date and closing date in separate fields when available. If a source does not state one, say so rather than estimating it.
- Preserve value wording. Copy the source’s qualifier and definition. Do not turn an “up to” amount or contingent consideration into a certain cash price, or combine unlike value measures into one total without explaining the method.
- Describe the acquired capability with attribution. Summarize the stated rationale as the acquirer’s explanation, not as proof that expected synergies or integration results will occur.
- Recheck status at the cutoff. A list should make clear when it was last updated and should not leave announced or pending transactions labeled as completed without confirmation.
What company statements can—and cannot—show
Deal announcements can explain a buyer’s strategic rationale, but those statements are the company’s view of the transaction. Parsons chair, president, and CEO Carey Smith called the Altamira acquisition “a strategic accelerator for our national security growth strategy,” describing the capabilities Parsons said it would gain. That quote is evidence of the company’s stated rationale, not independent evidence of the deal’s eventual outcomes.
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