When a company pours €130 million into a brand-new cheese factory, you’d expect it to stay open longer than a few years. But that’s exactly what’s happening in Portlaoise, County Laois, where Leprino Foods has announced it will shut its mozzarella and string-cheese plant in the second half of 2026, putting more than 130 jobs at risk.

Company founded: 1950 ·
Portlaoise plant investment: €130 million ·
Jobs affected: 130+ ·
Closure announcement date: 19 August 2025 ·
Expected closure period: Second half of 2026 ·
Plant operational duration: Approximately 5 years

Quick snapshot

1Confirmed facts
2What’s unclear
  • Exact reasons for closure (company cited restructuring; Brexit and costs are analyst interpretations)
  • Whether the plant will be sold or repurposed
  • Long-term impact on Glanbia’s operations in Portlaoise
3Timeline signal
4What’s next
  • SIPTU union meeting with management on 20 August 2025 (Laois Nationalist (local weekly))
  • Production to be transferred to Magheralin, NI and Llangefni, Wales (RTÉ News (Irish public broadcaster))
  • Employees may apply for relocation within Leprino (Laois Nationalist (local weekly))
Fact Detail
Company Leprino Foods
Founded 1950
Owner Leprino family
Portlaoise plant investment €130 million
Jobs lost 130+
Closure announced 19 August 2025
Closure date Second half 2026

Who is the owner of Leprino Foods?

James Leprino and family ownership

  • Leprino Foods is owned by the Leprino family. The company was founded in 1950 by James Leprino in Denver, Colorado, and remains family-controlled today (RTÉ News (Irish public broadcaster)).

Leprino Foods corporate structure

  • Headquartered in Denver, Leprino Foods is a privately held company with no public shareholders. It operates manufacturing plants across the United States, Europe, and Asia.
Bottom line: Leprino Foods remains a family-owned dairy giant, but its Irish experiment has proven short-lived. For local workers, the family’s decision to close a €130m plant after five years raises hard questions about the staying power of foreign investment in Irish manufacturing.

What brands does Leprino Foods make?

Mozzarella cheese production

  • The Portlaoise facility produced mozzarella and string cheese (RTÉ News (Irish public broadcaster)). Leprino is widely recognised as the world’s largest mozzarella producer, supplying cheese to major pizza chains globally.

Leprino Foods product range

  • Beyond mozzarella, Leprino produces provolone, string cheese, and dairy protein ingredients for the food service and industrial sectors. Its products are primarily sold under private labels and to food manufacturers.

Private label and food service

  • Leprino does not market consumer-facing brands directly in Ireland. Instead, its cheese is used as an ingredient by pizza chains and prepared-food companies. The Portlaoise plant supplied both the Irish and European markets.
Why this matters

The closure removes a key supply source for mozzarella produced within Ireland, potentially increasing reliance on imports from the UK and continental Europe—a post-Brexit vulnerability for domestic food manufacturers.

Is there a cheese factory in Portlaoise?

Leprino Foods Portlaoise plant closure

  • Leprino Foods operated a cheese manufacturing plant in Portlaoise, County Laois, located at the National Enterprise Park on the Junction 17, Togher area (Laois Nationalist (local weekly)). The plant was described as a state-of-the-art facility when it opened around 2021.

Timeline of the closure announcement

  • The closure was announced on 19 August 2025, with operations expected to cease in the second half of 2026 (RTÉ News (Irish public broadcaster)).
  • The Irish Times quoted Leprino’s statement calling it a “difficult but necessary” decision (The Irish Times (national daily)).

Impact on local employment and economy

  • At the time of the announcement, 132 people worked at the facility (RTÉ News (Irish public broadcaster)). Local reporting described the plant as having been open only four years (Laois Nationalist (local weekly)).
  • The plant was not profitable, according to Leprino (RTÉ News (Irish public broadcaster)). Production is to be transferred to Leprino’s other European sites in Magheralin, Northern Ireland, and Llangefni, Wales (RTÉ News (Irish public broadcaster)).
  • Employees were told they could apply for relocation to other Leprino sites, which would affect the final number of redundancies (RTÉ News (Irish public broadcaster)).

The pattern is stark: a €130m factory, opened with fanfare less than five years ago, is set to close because it never turned a profit—and the company is moving production to sites inside the UK, where post-Brexit trade is more predictable.

The trade-off

Leprino’s decision to prioritise its UK plants over the Irish one highlights how Brexit has shifted the cost-benefit equation for food manufacturers. For the Midlands region, the loss of 130 skilled manufacturing jobs is a blow that the IDA (Ireland’s industrial development agency) is now under pressure to explain.

Timeline of the Leprino Foods Portlaoise plant

  • 1950: Leprino Foods founded in Denver, Colorado.
  • Approximately 2021: Portlaoise mozzarella plant opens (Laois Nationalist (local weekly)).
  • 19 August 2025: Closure announcement made (RTÉ News (Irish public broadcaster)).
  • August 2025: IDA publicly criticised for lack of intervention (Laois Nationalist (local weekly)).
  • Second half of 2026: Portlaoise plant scheduled to cease operations.

What’s confirmed and what’s unclear

Confirmed facts

  • Closure announcement on 19 August 2025
  • Job loss figure of 130+
  • Investment amount of €130m
  • IDA criticism in local media

What’s unclear

  • Exact reasons for closure (company only cited restructuring; Brexit and costs are analyst interpretations)
  • Whether the plant will be sold or repurposed
  • Long-term impact on Glanbia’s operations in Portlaoise

Quotes from key sources

“This has been a difficult but necessary decision to cease manufacturing at Portlaoise in the second half of 2026.”

— Leprino Foods company statement, as reported by The Irish Times (national daily)

“The IDA has been absolutely useless. They bring in these multinationals, take the credit for the jobs, and then when the company pulls out, there’s no support for the workers.”

— Local politician quoted by Laois Nationalist (local weekly)

“IDA Ireland is engaging with the company and with other state agencies to support the affected workers and explore options for the site.”

— IDA Ireland spokesperson, as reported by RTÉ News (Irish public broadcaster)

The common thread across all voices: a brand-new factory, built with public incentives and private capital, is closing before it reached its fifth birthday—and the agencies that helped bring it to Ireland now face a credibility test.

Summary

The closure leaves more than 130 workers at Leprino Foods in Portlaoise facing uncertain job prospects in a region already feeling the squeeze of industrial consolidation. For the IDA and Irish policymakers, the lesson is clear: attracting foreign investment with generous grants is no longer enough if the post-Brexit trading environment can make those investments unprofitable within half a decade.

Related reading: Leprino Foods company to close Portlaoise cheese plant · SIPTU to meet management over shock Laois factory closure

Frequently asked questions

Why did Leprino Foods decide to close its Portlaoise plant?

Leprino said the plant was not profitable and cited a restructuring of its European operations. The company described the decision as “difficult but necessary” (The Irish Times).

How many workers will lose their jobs?

At the time of the announcement, 132 people worked at the facility (RTÉ News). The total number of redundancies may be reduced if employees transfer to other Leprino sites.

When exactly will the factory shut down?

The closure is scheduled for the second half of 2026 (RTÉ News).

Will the IDA provide support for affected workers?

IDA Ireland stated it is engaging with the company and other state agencies to support workers and explore options for the site (RTÉ News).

What will happen to the factory building?

It is currently unclear whether the plant will be sold, repurposed, or left vacant. No announcements have been made regarding the future of the site.

Has Leprino Foods closed other plants before?

Leprino has restructured its European operations before. The closure of its Portlaoise plant follows the pattern of consolidating production into its facilities in Magheralin (Northern Ireland) and Llangefni (Wales) (RTÉ News).

Are there any plans for a replacement cheese factory in Portlaoise?

No. No replacement facility has been announced. Glanbia, which operates its own cheese plant in Portlaoise, may absorb some workers, but there is no confirmed plan.