mynth
04/2026

SENIOR acquired by TINICUM & BLACKSTONE

UNITED KINGDOM Aerospace, Naval & Defense / Aerostructures EV 1b - 4b GBP

Context

The consortium led by Tinicum and Blackstone has reached a definitive agreement to acquire 100% of the share capital of Senior plc, a prominent UK-listed engineering group. This strategic transaction represents the conclusion of a competitive bidding process, marking a significant milestone in the ongoing trend of international buyers targeting specialized UK industrial assets. The strategic rationale for the move centers on the acquirers' objective to consolidate their presence in the high-growth aerospace and defense sectors, specifically by creating a scaled technical platform. By taking the entity private, the consortium aims to provide the operational flexibility required to pursue long-term strategic initiatives outside the constraints of the public markets. The partnership is designed to leverage the acquirers' extensive experience in the industrial sector to accelerate the target’s growth prospects and technical development. A key component of the post-acquisition strategy involves combining the organization with a previously acquired aerospace platform to enhance scale and global reach. This integration reinforces the group’s standing as a primary provider of mission-critical components, providing the strategic depth required to address increasing defense budgets and the recovery of the civil aerospace market.

SENIOR, which reported an EBITDA margin of LOGIN in 2025, is valued in this transaction at an EV/EBITDA multiple of LOGIN, representing a LOGIN to the average currently observed in the Industry & Manufacturing sector (10.9x).

Note that this data is based on contribution from our growing community, composed of M&A and Private Equity professionals, and has been verified by our team to ensure its accuracy.

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Target

Senior plc is a premier global engineering organization dedicated to the design and manufacture of high-technology components and systems for the aerospace, defense, and land vehicle markets. The entity’s business model is structured around providing mission-critical solutions that facilitate fluid management, thermal regulation, and structural integrity in demanding operational environments. Its value proposition is centered on technical operational depth and advanced material science, enabling the production of lightweight and durable components for next-generation civil and military aircraft. Strategically, the firm focuses on maintaining long-term partnerships with major global OEMs, addressing the increasing demand for fuel-efficient and technologically advanced platforms. By integrating proprietary engineering expertise across a global manufacturing footprint, the organization ensures a mission-critical role in the global aerospace supply chain. The firm prioritizes technical innovation and industrialized reliability to support the evolving requirements of the aerospace and defense sectors.

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Historical Financials (GBP)

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2025
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REFERENCES

Valuation range: EV 1b - 4b GBP

Revenue range: 450M - 900M GBP

EBITDA range: 50M - 100M GBP

Note: This page provides detailed data on a private equity M&A transaction. Detailed and exact financial metrics for the acquisition of SENIOR by TINICUM / BLACKSTONE are reserved for mynth community members. Register for free to unlock full data.

Authors: verified mynth contributor (mynth data is contributed by M&A / PE professionals and systematically cross-verified with private deal documents and official press releases).

Acquirer: blackstone / tinicum