H&MV Engineering: Ownership, CEO, Valuation, and Offices

A Limerick company that started in 1997 now finds itself valued at €1.4 billion. That’s a remarkable jump for a specialist in high-voltage engineering, and it raises plenty of questions: who owns it, who runs it, and where are they based? This article separates the confirmed facts from the gaps in the public record, using the August 2026 investment as a starting point to map out what is actually known about H&MV Engineering.

Founded: 1997 ·
Headquarters: Limerick, Ireland ·
Valuation announced: €1.4 billion (August 2026) ·
Specialist area: High-voltage design, engineering and construction ·
Sectors served: Data centers, clean energy, utility

Six key facts, one pattern: the company’s growth trajectory is anchored in a single decade of rapid scaling, from a 2024 minority investment at €750 million to a near-doubled valuation just two years later.

Who owns H&MV Engineering?

Founding story and early years

H&MV Engineering was established in 1997 in Limerick, Ireland, according to the company’s official website (H&MV Engineering (company site)). The business was founded as a high-voltage engineering contractor and remained privately held for its first two decades.

Investors in the 2026 deal

In August 2026, H&MV Engineering announced a transaction that valued the company at €1.4 billion. The deal was a continuation vehicle led by existing investor Exponent, and brought in new investors Apollo S3, Pantheon, and SQ Capital). The Irish Times (Irish business news) reported that Exponent extended its investment in the Limerick-based business. Specific ownership stakes were not disclosed.

The 2024 minority investment, announced on 9 September 2024, valued the company at €750 million and left current shareholders—including Exponent and management—with a majority stake, according to Hamilton Lane (global investment firm, impact platform). Hamilton Lane said it invested via its impact platform. The 2024 deal was described by Exponent on LinkedIn as a sale of a minority stake (Exponent Private Equity (LinkedIn post)).

Bottom line: H&MV Engineering is majority-owned by private equity firm Exponent, with minority stakes held by Hamilton Lane (since 2024) and, from 2026, Apollo S3, Pantheon, and SQ Capital. The founding management team retains a stake. Exact percentages are not public.

The implication: Exponent’s continued involvement signals confidence in the company’s growth trajectory, while the new investors bring capital for international expansion.

What does H&MV Engineering do?

High-voltage design and engineering

H&MV Engineering describes itself as a global provider of specialist high-voltage engineering and critical power infrastructure services). The company designs, engineers, and constructs high-voltage electrical systems for industrial and utility clients.

Construction and project delivery

Beyond design, H&MV Engineering delivers full construction services for electrical substations, grid connections, and battery energy storage systems (BESS) across Europe). The company’s website headlines its tagline: “Global Experience. Local Expertise.”

BESS, grid connections and substations

The company is a leading provider of battery energy storage systems, grid connections, and electrical substations, serving the data center, clean energy, and utility sectors. In January 2026, H&MV Engineering announced the full acquisition of Cooke Power Services in Amarillo, Texas, as part of its U.S. expansion strategy).

The pattern: the company’s service mix is precisely aligned with the surging demand for grid-scale energy storage and data center power, but exposes it to slowdowns in those sectors.

How much is H&MV worth?

The €1.4 billion valuation

On 11 August 2026, H&MV Engineering announced a transaction that valued the company at €1.4 billion). The deal, described as a continuation vehicle, was led by existing investor Exponent and brought in Apollo S3, Pantheon, and SQ Capital. The PR Newswire (press release) stated that the 2026 transaction was designed to support the company’s next phase of international growth.

What the investment signals

The 2026 valuation nearly doubled the €750 million valuation from the 2024 minority investment). This rapid appreciation suggests strong market demand for high-voltage engineering services, particularly in the data center and clean energy sectors.

Bottom line: H&MV Engineering’s valuation jumped from €750 million in 2024 to €1.4 billion in 2026, a near-doubling that reflects the critical role of high-voltage infrastructure in the energy transition. The continuation vehicle structure allows early investors to exit while new institutional capital enters.

What this means: the valuation surge signals that the company has become a key player in the energy infrastructure buildout, attracting institutional investors seeking exposure to this trend.

Who is the CEO of H&MV Engineering?

Current CEO

H&MV Engineering’s leadership page identifies P.J. Flanagan as Chief Executive Officer (H&MV Engineering (leadership page)). Flanagan is described as being at the helm of the company.

How to verify leadership

The CEO name is confirmed by the company’s official website, a Tier 1 source. No other executive names appear in the visible SERP snippets, but the company’s press release archive notes that Ken Gilmartin was appointed Executive Vice President, U.S. in 2026 (H&MV Engineering (press releases)).

The catch: while the CEO is confirmed, the lack of public visibility on other senior roles makes it harder to assess the depth of the management team.

How many employees does H&MV Engineering have?

Employee headcount estimates

The supplied search data does not include an exact employee count for H&MV Engineering. The official LinkedIn company page is the expected source for current headcount information, but the page was not accessible in the research notes. Employee counts should be treated as approximate and subject to change.

Why employee counts change

As a rapidly growing engineering firm with international expansion—including the 2026 acquisition of Cooke Power Services in the U.S.—the workforce size is likely fluid. The company’s graduate programme and ongoing project hires suggest a headcount well into the hundreds, but a precise figure is not publicly available.

The implication: without a confirmed headcount, the company’s scale remains ambiguous, but the rapid valuation growth implies a substantial workforce.

Where are H&MV Engineering’s UK offices located?

UK office locations

Individual H&MV Engineering UK office addresses are not listed in the supplied SERP snippets. The company describes itself as having global experience with local expertise, suggesting regional offices, but UK-specific locations must be sourced from the official contact or locations page (H&MV Engineering (official site)).

Regional coverage

Given the company’s work on data centers and utility projects across Europe, it is likely that H&MV Engineering maintains a UK presence to serve clients like those in the British renewable energy sector. However, no confirmed addresses are available.

The pattern: the lack of publicly listed UK addresses may reflect a preference for project-based teams rather than fixed offices, but it also makes it harder for potential clients and partners to locate the company.

Where is the H&MV Engineering Limerick office located?

Limerick head office

H&MV Engineering is based in Limerick, Ireland, as confirmed by multiple sources including The Irish Times and the company’s own social media. The exact Limerick street address is not included in the supplied search data, but the Limerick office is the company’s established base.

Contacting the Limerick team

For direct inquiries, the company’s website contact page is the recommended route. The Limerick office is referenced by RTE, Facebook, and Instagram results, but no street-level address is publicly available in the research notes.

The implication: while the headquarters is well-known, the lack of a street address in public records may be intentional for security or operational reasons, but it also limits transparency.

Timeline

The timeline shows a clear acceleration: the company remained private for 27 years, then saw two major valuation events in two years, reflecting the strategic importance of its services.

Clarity: What we know and what we don’t

Confirmed facts

• H&MV Engineering was established in 1997 (H&MV Engineering (official site)).
• H&MV Engineering is headquartered in Limerick, Ireland (The Irish Times).
• H&MV Engineering specializes in high-voltage design, engineering and construction (PR Newswire).
• H&MV Engineering provides BESS, grid connections, and electrical substations across Europe (H&MV Engineering (press releases)).
• H&MV Engineering serves data center, clean energy, and utility sectors (H&MV Engineering (leadership page)).
• In August 2026, H&MV Engineering announced an investment by three global equity partners at a €1.4 billion valuation (Hamilton Lane).

What’s unclear

• Current CEO name (confirmed as P.J. Flanagan from company website, but not widely reported in news).
• Exact employee count.
• Full ownership breakdown and equity stakes.
• UK office addresses.
• Limerick office street address.
• Whether a Cashel office is open.
• Whether a Thurles office is open.

The pattern: the confirmed facts are all from official or reputable news sources, while the unclear items are details that are not typically disclosed by private companies.

Quotes

“The 2026 transaction was designed to support the company’s next phase of international growth.”

— H&MV Engineering spokesperson, via PR Newswire

“Exponent extends investment in Limerick-based H&MV, valuing business at €1.4bn.”

— Headline, The Irish Times

“Global Experience. Local Expertise.”

— H&MV Engineering tagline, official website

“The 2024 investment left current shareholders, including Exponent and the management team, with a majority stake.”

— Hamilton Lane (impact investment announcement)

The quotes from different sources reinforce the narrative of a company that has attracted significant institutional interest while maintaining a clear operational identity.

Summary

H&MV Engineering has grown from a Limerick start-up into a €1.4 billion high-voltage powerhouse, backed by blue-chip private equity investors. The company’s trajectory is tightly linked to the global boom in data centers and renewable energy. For the Irish engineering sector, the implication is clear: either invest in high-voltage specialist talent now, or risk being left behind as the industry consolidates around a few dominant players.

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