Lateral Naval Architects

The BMT Nigel Gee Lineage and the 2018 Spin-off

The formal launch, announced in a press release dated 30 May 2018 and reported by Boat International days later, moved BMT Nigel Gee's large-yacht engineering work into a dedicated company occupying a renovated two-story studio at Shamrock Quay, on the same historic yacht-building site as BMT's own offices. James Roy, who had spent the previous 12 years building up BMT Nigel Gee's yacht design division, was named managing director of the new firm, which launched with roughly 50 engineers and naval architects. Roy is a 1996 first class honours graduate of Southampton Institute's yacht design course, and coverage at the time quoted him describing Lateral as intended to deliver, in his words, more than the sum of its parts of the two parent organisations.

The company Lateral formalised had already been operating in practice for a decade. Oceanco and BMT Nigel Gee began working together in 2008, and by 2018 that partnership had produced four of the largest yachts on the water: Equanimity (91.5m, delivered 2014), Aquijo (an 86m sailing yacht, 2016), Jubilee (110m) and Black Pearl, the 106.7m DynaRig sailing yacht Oceanco delivered in March 2018, only months before Lateral existed as a company. All four were engineered by BMT Nigel Gee under its own name, not Lateral's, and even on Black Pearl the DynaRig masts and sailing system themselves were the work of a separate firm, Dykstra Naval Architects, while BMT Nigel Gee's own scope covered the hybrid propulsion, structure and systems underneath. That distinction matters for anyone reading yacht specification sheets: Lateral's own projects page and several yacht databases now list this earlier fleet under the Lateral name, even though the entity did not exist when those hulls were delivered.

What Lateral Actually Does

The firm describes its own remit as complete engineering expertise to the superyacht industry, from project conception to delivery, operation and refit, and splits that work across four linked disciplines. Naval architecture covers hull form, hydrodynamics, stability and class compliance; structural engineering spans steel, aluminium and composite construction; mechanical and systems engineering covers propulsion, power generation and the onboard systems that keep a large yacht running; and outfit engineering turns an exterior or interior designer's concept into buildable detail. Lateral also takes on consultancy work that has nothing to do with a new build, advising on operation and refit for yachts it did not originally engineer.

Two threads run through its recent public work. One is a proprietary structural approach it calls Free From Bulkheads, described as inspired by the simplicity of a skateboard chassis, which underpins the 83m HUB concept and is aimed at freeing interior layouts from conventional bulkhead-driven deck plans. The other is hybrid and electric propulsion, running from Bravo Eugenia's hybrid propulsion system through Leviathan's diesel-electric powertrain to HUB's battery-first Electric Hybrid System. Managing director James Roy has argued in his own published writing that the naval architect's job has shifted from simply meeting a performance spec to guiding owners through energy-transition technology choices that will not leave a yacht obsolete or non-compliant a decade after delivery, and Lateral's own project mix, heavy on electrification and alternative fuels, follows that logic.

Lateral Naval Architects is the engineering hand inside three of the decade's most talked about superyachts, a firm that spent ten years working for one shipyard before it ever had its own name.

The Delivered Fleet Since 2018

Bravo Eugenia, a 109m Oceanco motor yacht built for Dallas Cowboys owner Jerry Jones with exteriors by Nuvolari Lenard and interiors by Reymond Langton Design, was delivered on 20 December 2018 and stands as Lateral's first project actually completed under its own name, months after the joint venture launched. Oceanco's own release quoted James Roy crediting the yacht's sea trial performance to what the firm calls LIFE Design qualities embedded in her hull, paired with a hybrid propulsion system configured for multiple operating modes. Koru followed in April 2023: a 125.82m three-masted schooner-rigged sailing yacht built for Amazon founder Jeff Bezos at a reported cost of at least 500 million US dollars, with naval architecture credited jointly to Lateral and Dykstra Naval Architects, Dykstra also handling the exterior lines, and interiors by Mlinaric, Henry and Zervudachi.

Leviathan, previously known internally as project Y722, was delivered in November 2025 to Valve and Steam founder Gabe Newell: a 111m, 17.8m-beam diesel-electric hybrid motor yacht with exteriors by Oceanco itself and interiors by Mark Berryman Design. Oceanco has described the project as a continuous collaboration between itself, Lateral, Mark Berryman Design, build manager YTMC and brokerage Y.CO, run in alignment from concept to completion rather than handed between firms in sequence. A fourth credit, less publicised, sits on Infinity, a 117m, 4,978 GT Oceanco motor yacht delivered in 2022 with exteriors by Espen Oeino, where naval architecture is again credited to Lateral. Across all four, the pattern is consistent: Lateral engineers the vessel underneath someone else's exterior and interior, and rarely appears in owner-facing coverage except in a specifications table.

What a Commission Actually Costs

No rate card, day rate or commission percentage appears on Lateral's own site or in any interview, press release or trade profile found for this entry. That silence is easier to explain than it might first appear: on all four confirmed deliveries, Oceanco is the shipyard and Lateral is effectively its engineering partner of record, which means the yard, not an individual buyer, is the party actually contracting and paying Lateral as part of the overall build package. An owner commissioning a full-custom Oceanco project negotiates a build price with the yard; Lateral's own commercial terms with Oceanco are not something either company has made public.

General industry rate guides, not specific to Lateral, put dedicated naval architecture and marine engineering work at day rates well below what a named exterior or interior designer commands, since it is priced as technical engineering labour rather than creative design, per Cad Crowd's naval architecture rate guide. Separate design-cost guides put the full design package on a highly customised superyacht, naval architecture, exterior and interior combined, at roughly 10 to 20 percent of total build cost, rising toward 25 to 30 percent on the most bespoke one-off projects. Neither figure isolates what a naval-architecture-only scope like Lateral's costs on its own, which remains the actual gap in what is published.

How Lateral Compares to the Field

Firms like Dykstra Naval Architects or Azure Yacht Design have spent decades taking naval architecture commissions across many different shipyards and owners, building a portfolio one independent contract at a time. Lateral's history runs the other way: from 2008 to 2018 it existed only as BMT Nigel Gee's informal but exclusive engineering relationship with Oceanco, and even after the 2018 spin-off its four confirmed deliveries, Bravo Eugenia, Infinity, Koru and Leviathan, are all Oceanco builds. That gives Lateral an unusually deep bench of experience on ultra-large, 100m-plus custom yachts built at a single yard, but it also means the firm's brand is still closely bound to one shipyard's fortunes rather than spread across the industry the way an older independent consultancy's client list is.

Where Lateral has visibly branched out is concept work rather than delivered yachts. Project Maverick, a 60m all-electric sailing concept developed with Dixon Yacht Design and rigging specialist Southern Spars, pairs twin DynaRig masts with a retractable ballasted keel and a claimed 94 percent of onboard operations in zero-emission mode. HUB, an 83m concept built with byJC and Lawson Robb on Lateral's own Free From Bulkheads structural platform, and Mirage, a further 83m concept with Daroca Design, both put Lateral's engineering alongside design houses that have no Oceanco connection at all. None of these three has yet become a delivered yacht, which makes them evidence of ambition and design-house trust rather than proof that Lateral can execute a full build outside the Oceanco relationship that made it.

Where the Limits Are

The clearest gap is the same one that runs through the cost section above: no fee, rate or commission structure is published anywhere, leaving a prospective client with no public benchmark. A second gap is independent testimony. Every quote located that credits Lateral by name traces back to Oceanco's own press materials or Lateral's own site, including the one substantive quote from James Roy about Bravo Eugenia's sea trials; no owner, captain or broker interview found in Boat International, Superyacht Times, SuperyachtNews or Wikipedia's own yacht pages discusses Lateral's engineering specifically, as opposed to the yacht as a whole. That is common for a firm working underneath named exterior and interior designers, but it leaves a buyer with no independent account of what it is actually like to work with Lateral on a project.

The second limitation is concentration. Despite four confirmed deliveries on genuinely enormous, widely covered yachts, every one of them is an Oceanco build; the three projects that put Lateral in front of other design houses, Maverick, HUB and Mirage, are concepts, not finished yachts, so a non-Oceanco client has no completed Lateral project to point to yet. A third, more subtle issue is brand clarity: Lateral's own projects page and third-party yacht databases both list pre-2018 hulls such as Kaos, delivered in 2017, a full year before Lateral existed, and Jubilee, credited elsewhere to Azure Naval Architecture and Oceanco rather than Lateral, alongside the firm's genuine post-2018 work. A reader comparing specification sheets across sites cannot always tell which hull was actually engineered by the Lateral entity itself, as opposed to its BMT Nigel Gee predecessor team under a different name.

Where the Studio Is Headed

Lateral's own projects page lists a further run of large Oceanco-scale hulls beyond the four confirmed deliveries covered above, including Seven Seas at 109m, LAVILLA at 110m, Esquel at 105m, Project H3 at 105m and Spear at 460 feet, alongside newer concept work labelled as an Energy Transition Platform and a project called Aeolus. The site does not clearly separate confirmed builds under construction from unbuilt concepts, so this profile treats that list as Lateral's stated pipeline rather than a verified order book; only Bravo Eugenia, Infinity, Koru and Leviathan could be independently confirmed as delivered yachts for this entry.

The throughline across both the confirmed and the unconfirmed work is the same argument James Roy has made in his own published writing: that the industry has, in his words, been building the same old boat over and over again, that too little of a project's timeline is spent on genuine technical development at the blank-sheet-of-paper stage, and that naval architects now have to help owners navigate energy-transition technology choices rather than simply meet a fixed performance brief. Roy has framed this explicitly around decarbonisation, energy storage and platform thinking like the Free From Bulkheads structural approach, rather than around chasing another length record, which reads as a deliberate attempt to build Lateral's next decade around a different kind of headline than the one that made Black Pearl and Koru famous.

لمين هو: An owner already committed to a full-custom yacht at Oceanco, or a design house that needs whole-vessel structural, mechanical and systems engineering behind its own exterior and interior concept, rather than someone shopping for a naval architect who will also style the boat.