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Bureau van Dijk Zephyr: M&A and deals (licensed)

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Bureau van Dijk Zephyr is a global deals database: M&A, IPOs, private-equity and venture rounds, joint ventures, and buybacks, with deal value, dates, stakes, advisers, and acquirer / target identities. Its advantage over other deal sources is that the parties link directly to the Orbis / Amadeus firm universe (see Orbis (BvD)), so deals join to private-firm financials and ownership. A paper we distill uses it: Beaumont, Hebert & Lyonnet use Zephyr M&A data (7,165 deals, 4,139 acquirers), matched to French administrative records and combined with SDC Platinum, to identify “buy” entries when studying whether firms acquire human capital rather than build it.

  • Cost: licensed, subscription. No free tier.
  • Vendor: Moody’s / Bureau van Dijk.
  • Coverage: worldwide deals (M&A, IPO, PE/VC, JVs), with the deepest coverage for European private firms via the Orbis link; smaller / private deals are better covered than in U.S.-centric deal databases.
  • Through a Bureau van Dijk subscription. Zephyr is reached via the BvD / Moody’s platform (web interface, batch download, or the Orbis API where entitled). Some institutions license it through a research arrangement.
  • Keyed by deal, linkable to firm IDs. A deal record carries the parties’ BvD IDs, so an extract joins to Orbis / Amadeus firm financials and ownership; this firm link is the reason to prefer Zephyr.
  • Terminal or API credentials are required. Keep any credentials in .env, never hard-coded.

These are the failure modes to expect; they are documented, not verified here.

  • Coverage and completeness vary by region and era. Zephyr is strongest for recent European deals and thinner for older or non-European transactions; deal counts are not a census, so do not read absence as no-deal. The citing paper uses SDC Platinum as its primary M&A source and supplements it with Zephyr to improve coverage.
  • Deal-status and double-counting. A single transaction can appear as announced, then completed, then amended; counting raw deal rows overstates activity. Filter on completed status and dedupe by deal ID.
  • Stake and value fields are often missing. Deal value and the acquired stake are unpopulated for many private deals; conditioning on non-missing value silently selects larger, public-side deals. State how you handled missing values.
  • Identifier linking across vintages. The BvD ID is stable within a vintage but firms get merged / re-IDed across Orbis releases; a deal-to-firm join built on one vintage can break on another. Pin the vintage.
  • Overlap with SDC and other deal sources. When combining Zephyr with SDC Platinum, the same deal appears in both with different keys and slightly different dates / values; matching requires party names plus dates, not a shared ID. Document the merge and deduplication.

Cite the vendor and product, e.g.: Bureau van Dijk Zephyr (Moody’s), accessed YYYY-MM-DD. State the deal types and region, the status filter, the date range, and whether deals were linked to Orbis firm data.

Found an error or want a topic covered? Open an issue, use the Edit page link above, or email contact@instituteforautomatedresearch.org. Edits are reviewed before publishing; provenance and accuracy are the point.