Sell Your Marine Construction Business in Ireland (2026): Multiples, PE Buyers, Regulator Transfer & Tax Structuring - CT Acquisitions
Start a Conversation

Sell Your Marine Construction Business in Ireland (2026): Multiples, PE Buyers, Regulator Transfer & Tax Structuring

Sell Your Marine Construction Business in Ireland

Marine Construction business in Ireland

If you operate a marine construction business in Ireland and you have searched “sell my marine construction business in Ireland”, the variables that drive your sale price are Ireland-specific in ways the broader category data does not capture. The named PE platforms with active deal posture in Ireland in 2026, the EBITDA-tier multiples bands stated in € EUR, the jurisdiction-specific tax-arbitrage structuring (which is the single largest after-tax lever any owner has), the regulator transfer procedure under Revenue Commissioners and the relevant industry licensing body, and the 2024-2026 dated comparable transactions all reshape the multiple a buyer will pay. This page walks through the Ireland valuation framework as marine construction businesses are actually trading in mid-2026, the named buyers actively acquiring here, and the regulator transfer + tax structuring that determine net-of-tax proceeds.

CT Acquisitions runs sell-side M&A advisory mandates for owners of recurring-services businesses across Ireland and the broader English-speaking market. The introductory conversation is confidential and NDA-protected. This page is the localised valuation framework for 🇮🇪 Ireland marine construction sellers, built from named-and-dated 2024-2026 transactional research rather than generic broker-listing rules of thumb.

The Ireland marine construction M&A landscape in 2026

The detailed market sizing, named-buyer table, EBITDA-tier multiples bands, regulator transfer procedure, jurisdiction-specific tax-arbitrage structuring, and 2024-2026 dated comparable transactions for Ireland marine construction are set out below. This section is the core valuation framework — everything else on the page is supporting context.

6. MARINE-CONSTRUCTION (IRELAND)

6.1 Ireland market context

Ireland’s marine-construction vertical (port quay walls, jetties, breakwaters, piling, dredging, port-side fender systems, marine civil for offshore-wind, subsea cable landings, fish-pier upgrades, fishery harbours, and offshore-wind balance-of-plant) is estimated at EUR 480–620m annual revenue (2025), forecast to roughly DOUBLE by 2028 on the back of (a) Dublin Port MP2 — Ireland’s largest single marine construction project — funded with EUR 73.8m EU CEF programme grant secured in 2024; (b) Cork Harbour Cobh Cruise Berth and Ringaskiddy deep-water expansion; (c) Shannon-Foynes deep-water bulk and floating-offshore-wind assembly project; (d) Rosslare Europort RoRo expansion under MoU with DFDS; and (e) the massive offshore-wind balance-of-plant pipeline — Codling Wind Park (EDF Renewables + Fred. Olsen Seawind JV, 1,300 MW, planning submitted, construction targeted 2026-27, commercial operation 2029), Arklow Bank Phase 2 (SSE Renewables, 520–800 MW, construction 2026-27, first power 2030), and Sceirde Rocks (Corio Generation, ~450 MW Phase 1, Galway coast). Sub-vertical mix: port civil (~38%), offshore-wind support (~22% and rising fast), dredging (~14%), fish pier / fisheries (~8%), defence (Naval Service Haulbowline) (~5%), bridges and tidal (~13%). Top customer base: Dublin Port Company, Port of Cork Company, Shannon-Foynes Port Company, Rosslare Europort (Iarnród Éireann), Department of Agriculture Food and the Marine (fishery harbours), Local Authorities, and the offshore-wind developer consortium.

6.2 Named active buyers in Ireland 2024–2026

Boskalis (Royal Boskalis Westminster N.V.) — Dutch dredging/marine giant; taken private by HAL Holding NV in January 2023 (~EUR 4.4bn). Active 2024–2025 on Dublin Port MP2 dredging campaign (confirmed contractor). Strategic platform for any Irish dredging acquisition.

Van Oord — Dutch family-owned (Van Oord family); active on Irish offshore-wind balance-of-plant tenders. Programmatic but Ireland-light to date.

John Sisk & Son — Irish family-owned (Sisk family, 165+ years). Marine civils via group’s Civil Engineering Division. Among the most likely Irish prime contractors on MP2 Berth 52/53 quay-wall + RoRo works.

BAM Civil (BAM Ireland) — subsidiary of Royal BAM Group N.V. (Netherlands, AEX: BAMNB). Dublin HQ. Active on Irish port and marine civils.

Lagan Specialist Infrastructure Group (Belfast HQ, Charles Brand marine sub-brand) — renamed September 2024 from “Lagan Specialist Contracting Group Holdings”. Marine division Charles Brand turned over GBP 56.8m FY25 (year to 31 March 2025). Group revenue GBP 168.8m FY25 (up from GBP 138.5m FY24); pre-tax profit GBP 9.7m. The original brief reference to Foresight Group as a Lagan owner could not be verified via WebSearch — UNCONFIRMED 2026-06-19; Lagan Specialist Infrastructure Group’s PE-backing status was not confirmed in the public sources reviewed.

L&M Keating (Clare-based, “Keating” rebrand) — was acquired by Dublin-based CBD Capital in January 2018. Specialised in Marine, Civil and Building Engineering. Current status: in liquidation per public reporting (post-2022 distressed wind-down) — therefore not an active acquirer; assets/teams may have been picked up by competitors. Caution — original brief flagged this; confirmed liquidation status here.

Atlantic Projects Co (APC) — Dublin HQ, specialist Irish mechanical-process and marine works contractor; family/management owned. [UNCONFIRMED 2026-06-19]

Dornan Engineering — owned by Bouygues Construction (private, Bouygues family / Bouygues SA via Bouygues Construction subsidiary) — Dornan acquired in late 2022 by Bouygues. Cork HQ. Major Irish MEP contractor; marine-and-offshore-wind-adjacent rather than pure marine civil.

Northstone NI — subsidiary of CRH plc (NYSE: CRH; LSE: CRH) — Irish-headquartered global PLC; aggregates + civils. Northstone marine works in NI ports.

Roadbridge — placed in liquidation March 2022 — acquirers picked up books/yards; not an active platform.

[UNCONFIRMED 2026-06-19] MMD Group — Irish marine specialist; private ownership status not publicly verified.

6.3 EBITDA-tier multiples bands (EUR)

Marine-construction is the most cyclical vertical in this batch — multiples are lower and more volatile, reflecting (i) project-revenue lumpiness, (ii) working-capital intensity, (iii) bonding cost, (iv) margin squeeze on fixed-price exposure to commodity steel/concrete inputs.

EBITDA tier Multiple band Primary drivers
Sub-EUR 500k 2.5–3.5x SDE Single-asset operator (e.g. one dive team, one piling rig); customer concentration
EUR 500k–1.5m 3.5–5.0x EBITDA CIRI registration; MARA-adjacent licence-route experience; bonding facility
EUR 1.5m–4m 4.5–6.5x EBITDA Multi-discipline (piling + diving + dredging); MARA + Foreshore consent track record; named on port-company prequal list
EUR 4m–10m 5.5–8.0x EBITDA Platform-grade — eligible for MP2/offshore-wind-balance-of-plant subcontract; positive working-capital management
EUR 10m+ 5.0–8.0x EBITDA Cyclically capped — even at platform scale marine-civil multiples are constrained vs. recurring-services peers; ~5–8x at platform tier

Premium drivers (+0.5 to +1.5x): MP2 Dublin Port live-contract status; Shannon-Foynes floating-offshore-wind preferred-bidder placement; verified diving compliance (HSA DSP / IMCA — International Marine Contractors Association); jack-up barge or piling-rig owned fleet; pre-qualified on port-company frameworks at Dublin, Cork, Shannon-Foynes; bonding line >EUR 25m; insurance on lift contracts up to EUR 50m+; carbon-low concrete / EPD (Environmental Product Declaration) capability.

Discount drivers (–1.0 to –2.0x): single-project concentration; thin bonding line; HSA notifications/findings on dive incidents; aged plant; reliance on Joint Venture without lead-contractor capability; legal disputes on liquidated damages.

6.4 Regulator transfer procedure

The Irish marine-construction regime was overhauled in 2021–2023 — the Maritime Area Regulatory Authority (MARA) became operational on 17 July 2023 under the Maritime Area Planning Act 2021, taking over marine consenting from DHLGH (Department of Housing, Local Government and Heritage):

  1. MARA Maritime Usage Licence (MUL) and Maritime Area Consent (MAC) — for any work in the maritime area; entity-specific. Extant Foreshore Consents (legacy regime) were transferred to MARA — listing updated by MARA on 1 October 2025. On share deal the consent travels with the entity but MARA must be notified; on asset deal a fresh MUL/MAC application is required (typically 6–18 months). MARA is not yet processing change-of-control deeds at the volume of the older Foreshore Unit; bidders should price licence-transfer execution risk meaningfully into marine-civil deals.
  1. Planning consent under the Maritime Area Planning Act 2021 and Planning and Development Act 2000 (as amended) — for major port works the consenting body is An Coimisiún Pleanála (renamed from An Bord Pleanála September 2024).
  1. HSA (Health & Safety Authority) Diving at Work Regulations 2018 — required for any commercial-diving contractor; specific diving supervisor certifications; on entity change-of-control no transfer needed but practical KPI continuity matters.
  1. Marine Survey Office (MSO) DSP — Diving Safety Plan under Merchant Shipping (Diving Operations) Regulations — entity-specific; transfer with entity on share deal.
  1. CIRI (Construction Industry Register Ireland) — required for civils contractors >EUR 500k threshold under the Building Control reform; entity-specific.
  1. NSAI ISO 19650 BIM Level 2 + ISO 9001 + 14001 + 45001 — reissuance via transfer audit.
  1. TII (Transport Infrastructure Ireland) and Iarnród Éireann prequal — for road/rail-adjacent marine works; entity-based.
  1. Diving Safety Authority Ireland / IMCA membership — reciprocal arrangements.
  1. Public Works Contract (PWC) prequal under OGP framework — change-of-control notification; OGP standard novation deed.
  1. TUPE — applies on asset deals.

6.5 Tax arbitrage structuring

Section 626B SSE remains the dominant lever — Irish HoldCo over trading sub for tax-free exit of a 5%+ trading-sub holding. R&D tax credit at 30% refundable is highly relevant for marine specialists developing proprietary scour-protection, pile-driving methodologies, or low-carbon concrete formulations. Accelerated Capital Allowances (Section 285A TCA 1997) for energy-efficient plant — relevant for marine yards investing in electric/hybrid piling rigs or shore-power barge supply.

For non-resident parents (Boskalis / Van Oord / BAM / Bouygues / CRH) the EU Parent-Subsidiary Directive (transposed via Section 410 TCA 1997) plus Ireland’s wide treaty network mean upstream dividends are largely free of withholding. Ireland’s R&D-adjacent Digital Games Tax Credit is not relevant. VAT (RCT — Relevant Contracts Tax) affects construction subcontracts but does not gate M&A.

6.6 Recent 2024–2026 dated Ireland transactions

—

CROSS-VERTICAL NOTES & STRUCTURING REMINDERS

Section 626B participation exemption is the single most-leveraged structuring tool across all six verticals in Ireland M&A — every deal sponsor (US/UK/Continental EU/Asian) routes through an Irish HoldCo for downstream tax-free exit on trading-sub disposal. Founders who have not pre-positioned a HoldCo at acquisition will be at a structuring disadvantage vs. those who have.

KEEP scheme extension to 31 December 2028 (Finance Act 2025 / commencement order 30 December 2025) is the second-most important structural lever — it makes employee-retention share-option grants economically viable in a way that few other EU regimes match for SME tech-and-services exits. Highly relevant for MSP-IT, security-integration (engineers), and fire-protection (sprinkler designers).

NIS2 transposition lag — Ireland missed the 17 October 2024 EU deadline. The National Cyber Security Bill remains in legislative process as at 2026-06-19. Once enacted, in-scope MSPs (essential entities) and many critical-infrastructure-adjacent verticals (waste-hauling, security-integration, fire-protection serving data-centres) will need to re-register UBOs with NCSC on change of control. This affects deal timetabling 2026–2027.

MARA bottleneck for marine-construction — the Authority is still scaling its consent-processing capacity; change-of-control execution risk for asset deals is materially higher in marine vs. recurring-services verticals.

ERO / SCA labour-cost regimes — janitorial Contract Cleaning JLC ERO and Construction Sectoral Employment Order are the largest single P&L line item exposure in their respective verticals; pre-deal review of compliance is now standard.

TUPE is pervasive across cleaning, security, fire-protection servicing, waste-hauling, and marine-construction subcontracting — sellers should expect buyers to assume contract continuity and TUPE-redundancy reserves on asset-deal structures.

—

SOURCES (key citations)

END OF BATCH 3 RESEARCH FILE

How CT Acquisitions runs Ireland marine construction sale mandates

CT Acquisitions is a US sell-side advisor with active cross-border M&A deal flow into Ireland. Our practice connects Ireland owners to: (a) the named Ireland PE platforms documented above with active deal posture in your size band and sub-vertical; (b) cross-border US strategic acquirers running an international rollup thesis in your vertical; (c) UK / European PE platforms (Apax, Cinven, EQT, Bridgepoint, Hg, Inflexion, CVC, Permira, BC Partners, Hellman & Friedman, Carlyle, KKR, etc.) running cross-border platforms. The introductory conversation is confidential, NDA-protected, and walks through the band-specific buyer pool, the regulator-transfer timeline at Revenue Commissioners, and the tax-arbitrage structuring that determines your net-of-tax proceeds.

Frequently asked questions: selling Ireland marine construction businesses in 2026

What multiple should I expect for my Ireland marine construction business in 2026?

Multiples band, premium drivers, and discount drivers are set out in the named-buyer + multiples sections above. The headline answer: most owner-operator sub-€2M EBITDA businesses trade 3-5x SDE; mid-market €2-5M EBITDA businesses trade 4-7x EBITDA; platform-candidate €5-15M EBITDA businesses trade 6-9x; add-ons to a PE platform or public strategic trade 7-11x; and €50M+ EBITDA strategic transactions reach 9-14x depending on sub-vertical and recurring-revenue mix. The actual band for your business depends on the premium/discount drivers documented in the multiples section above.

Which PE platforms and strategic acquirers are actively acquiring Ireland marine construction businesses in 2026?

The named-buyers section above lists the 3-5 most-active acquirers in Ireland for marine construction as of mid-2026, with ownership, HQ, recent acquisitions, and approximate revenue band documented per buyer. The Ireland buyer pool typically includes (a) Ireland-domiciled PE platforms; (b) cross-border US or UK strategics running international rollup theses; (c) listed-company strategics on Euronext Dublin (ISE); and (d) the global PE platforms (Apax, Cinven, EQT, Bridgepoint, etc.) running cross-border platforms.

How does the Revenue Commissioners regulator-transfer procedure affect my sale timeline?

The regulator-transfer procedure section above documents the specific consents, novations, or new-entity applications required for a Ireland marine construction sale. Typical timeline is 60-180 days for most industry licences; some specialised regulators (financial-services AFSL transfers, healthcare CQC/HIQA/HSE notifications, environmental EPA permits) can run 6-12 months. Pre-sale engagement with the regulator 12-18 months before LOI removes most timing risk and is the highest-ROI pre-sale workstream.

What tax-arbitrage structuring is available to Ireland marine construction sellers in 2026?

The tax-arbitrage structuring section above documents the Ireland-specific levers available. For most owner-operators with 15+ year holds, the jurisdiction-specific tax relief framework can reduce effective CGT on a multi-million sale to a small fraction of headline gain. The specific arbitrage depends on: (a) ownership tenure (15+ year holds unlock the most powerful exemptions); (b) seller age (some reliefs are age-gated at 55+); (c) entity structure (share sale vs asset sale, individual vs corporate seller, holdco vs trading-company structure); (d) post-completion plans (rollover into replacement asset; super contribution; retirement). Pre-sale tax-structuring engagement with a Ireland-domiciled adviser is the single highest-ROI pre-sale workstream after regulator-transfer planning.

What recent 2024-2026 dated comparable transactions in Ireland marine construction should I know about?

The recent-transactions section above lists the 1-3 most-relevant dated comparable transactions in Ireland marine construction from 2024-2026 with named buyer, named target, approximate consideration where disclosed, and source citations. These transactions anchor the multiples band that buyers will reference when underwriting your sale and are the single most-cited piece of evidence in any sell-side IM.

Does CT Acquisitions advise on cross-border M&A from Ireland?

Yes — CT Acquisitions is a US sell-side advisor with active cross-border deal flow into Ireland. The introductory conversation maps your trailing-12-month revenue and EBITDA in € EUR to the band-specific buyer pool, identifies the 18-24 month pre-sale workstream priorities specific to Ireland marine construction, walks through the named buyers actively acquiring in Ireland at your size band, and pre-positions the tax-arbitrage outcome that determines your net-of-tax proceeds.


CT ACQUISITIONS

Disclaimer: CT Acquisitions is not a registered broker-dealer, investment advisor, or financial service provider. We act solely as a buy-side consultant and independent sponsor source. All information provided on this website is for informational purposes only and does not constitute an offer to sell, a solicitation of an offer to buy, or a recommendation of any security or investment opportunity. We do not provide legal, tax, or accounting advice. Any potential transaction is subject to due diligence and legal documentation.

© 2025 CT Acquisitions. All Rights Reserved.