Tech M&A Deals in September 2026: What Closed, Who Bought, Who Advised

Deal volume in September 2026

The index records the date a deal was first announced, taken from the linked source. Using that date, September 2026 holds 416 deals. August 2026 holds 342, so the month is up 74 (21.6%) against 342. Across the whole extract, September 2026 ranks number 1 of 10 calendar months in the extract, counting the partial month of October 2026 (the highest monthly count in the index). That averages 13.9 announcements per calendar day.

The September 2026 figure was read from the extract dated October 14, 2026. A row added later with a September 2026 announcement date would raise it, so treat the count as the total in that extract.

Sector mix

SaaS led with 96 deals (23.1% of the month). The three largest sectors were SaaS (96), Other tech (56) and IT services (51), together 48.8% of all deals. The sector that gained the most against August 2026 was SaaS (+33) and the one that lost the most was Martech (-2).

Each deal carries one sector label, so it appears in exactly one row. The full definitions sit on the deal index.

Who bought

Strategic buyers (operating companies) accounted for 244 deals and public companies for 106, so 84.1% of the month went to corporate buyers. Private equity firms announced 27 deals and PE-backed platform companies another 37, a combined 15.4%. 19 acquirers announced more than one deal in the month: Main Capital Partners (5), Lexroom (3), Pearson (3), Septeo (3), A-LIGN (2), Adobe (2), BlueBinaries (2) and Borderless AI (2).

The index keeps PE-backed strategic buyers apart from private equity firms: 37 deals against 27 this month. Together they are the 15.4% sponsor-linked share used in the findings.

Disclosed values and the ten largest deals

64 of the 416 deals disclosed a value, which is 15.4%. The disclosed values add up to $38.89 billion. The median is $60 million and the mean is $607.7 million; the gap between the two shows how a few large deals pull the average up. The smallest disclosed deal was $0.2 million and the largest $10.43 billion. In August 2026 68 deals disclosed a value with a median of $102.5 million.

11 deals at or above $1 billion account for $33.11 billion (85.1% of all disclosed value in the month).

The 10 largest disclosed deals

Figures marked ° are ceilings, floors or approximations as reported, not final consideration.

8 deals announced in the month carry a reported value that the source marks as an estimate, a media report or not a purchase price. They are left out of the count, the total, the median, the mean, the size buckets and the ranking above and counted as unpriced. For the record: Cegid / Silae (reported value $11.60B, unconfirmed); CVC Capital Partners / CDN77 (reported value $1.90B, unconfirmed); Hg / ENTERSOFTONE (reported value $1.08B, unconfirmed); Palo Alto Networks / Console (reported value $500M, unconfirmed); Descartes Systems / OCR Services (reported value $82.8M, unconfirmed); Greenly / Normative (reported value $69M, unconfirmed); Upwind / Aegis (reported value $30M, unconfirmed); Fomo / Mobula (reported value $17M, unconfirmed).

Size bucket mix

Size buckets follow the disclosed value. The 8 reported-only values count as undisclosed, so 84.6% of the month sits in the undisclosed bucket and cannot be sized. Among the 64 priced deals, 21 were under $20 million, 19 fell between $20 million and $200 million, 13 between $200 million and $1 billion and 11 above $1 billion. The $20 million to $200 million band held 29.7% of the priced deals this month.

Who advised

33 of 416 deals (7.9%) named at least one advisor in a public source. That produced 50 credits across 45 advisory firms. 40 firms were credited once. Carlsquare (2), Houlihan Lokey (2), J.P. Morgan (2), TripleTree (2) and Evercore (2) had more than one credit. A credit means the firm was named as sell-side or buy-side financial advisor in a source linked on the deal row, counted once per deal per firm.

30 more firms had a single credit; they appear on the per-firm pages and in the CSV.

These counts measure who was named, not who did the work. 92.1% of the month's deals name no advisor at all. For a quarter-level view see the advisor league view.

Cross-border share

A deal counts as cross-border when the acquirer and the target are based in different countries, as recorded from the source. 93 of the 416 deals met that test (22.4%). The most common target countries among them were US (15), GB (12), DE (11), FR (6), SE (4). The most common acquirer countries were US (31), GB (8), FR (7), CA (6), AU (5).

The rows overlap: a US buyer of a UK target counts in the second and fourth rows. The full list of US and Europe deals is on the cross-border cut.

What the numbers say

1. September 2026 had 416 announced tech and SaaS acquisitions, up 74 (21.6%) from August 2026 at 342, which makes it the highest monthly count in the index.
2. Strategic and public-company buyers announced 350 of the 416 deals (84.1%) and private equity or PE-backed platforms announced 64 (15.4%); in August 2026 the PE share was 12.9%.
3. Only 64 of 416 deals (15.4%) disclosed a price. Their combined disclosed value was $38.89 billion and the median was $60 million; 11 deals at or above $1 billion made up 85.1% of that total.
4. 33 of 416 deals (7.9%) named at least one advisor in a public source, against 9.1% in August 2026; Carlsquare, Houlihan Lokey and J.P. Morgan led the credit count.
5. 93 deals (22.4%) crossed a border, against 21.3% in August 2026. Of those, 26 linked the US with the EU, UK, Switzerland or Norway.

These sentences are generated from the same rows as the tables above, so each figure can be checked against the open file. Filter announced_date to September 2026 and count.

Methodology and limits

What the index counts. The ProCloser Tech M&A Deal Index lists publicly announced acquisitions of software, SaaS and technology-enabled businesses, labelled across eleven sectors. Each row links to the announcement it was built from: a company or acquirer press release, an SEC filing, wire coverage or trade press. The source mix for September 2026 was 360 news articles, 53 press releases and 3 SEC 8-K filings.

What "closed" means here. The index records announcement dates. It does not track completion, so a deal announced in September 2026 may close later and a deal that closed in September 2026 may have been announced earlier. Read every count on this page as announced deals.

Confidence. 314 of the 416 rows carry high confidence and 102 medium confidence. A value is shown only when a source prints a figure; a currency conversion is noted on the row. 8 values in September 2026 were set aside as reported only (a media estimate, an unconfirmed report or a figure that is not a purchase price) and are excluded from every total, median, mean, size bucket and ranking on this page.

Corrections. If a row is wrong or a deal is missing, send the public link through the submit-a-deal form. Corrections change the dataset and this page follows the next time it is generated.

Related resources

• ProCloser Tech M&A Deal Index: the full row-level record with a source link on every row.
• Advisor league view: every credited firm with sell-side and buy-side counts.
• Most active M&A advisors in tech: the sell-side league table with its methodology.
• Tech M&A insights: monthly volume, buyer mix and advisor trends.
• Most active tech acquirers: the buy-side companion.
• Tech M&A valuation benchmarks: what disclosed values printed by sector and size band.
• What the data shows: the plain-language read of the index.
• Get matched to an M&A advisor: sector, size and buyer-type matching, free for sellers.

Frequently asked questions

How many tech M&A deals were announced in September 2026?

The ProCloser Tech M&A Deal Index recorded 416 announced tech and SaaS acquisitions in September 2026, up 74 (21.6%) from August 2026 at 342.

Which sector had the most deals in September 2026?

SaaS had the most, with 96 deals (23.1%). The next two were Other tech (56) and IT services (51).

How many September 2026 deals disclosed a price?

64 of 416 (15.4%). Their combined disclosed value was $38.89 billion and the median was $60 million.

Which advisors were credited most often in September 2026?

Carlsquare (2), Houlihan Lokey (2), J.P. Morgan (2), TripleTree (2) and Evercore (2) led the credit count. 33 of 416 deals named an advisor in a public source.

Does this page count deals that closed in September 2026?

No. The index records the announcement date, so the page counts deals announced in September 2026. Completion is not tracked.

Sources

Every deal on this page links to the announcement that produced it. The underlying data is public:

• deals.json: the open dataset, 2,152 rows, generated October 14, 2026, covering announcements from 2026-01-02 to 2026-10-14. Licensed CC BY 4.0.
• deals.csv: the same data in CSV.
• Deal index and advisor league view: the browsable views.
• Deal index feed: new tracked deals as they are added.

Cite this page as: ProCloser.ai, "Tech M&A Deals in September 2026: What Closed, Who Bought, Who Advised", October 14, 2026, https://procloser.ai/blog/tech-ma-deals-2026-09/. Cite the data as "ProCloser Tech M&A Deal Index" with a link.