Namura Shipbuilding

Company history

Financial history 1974–2026 — revenue, cost structure, balance sheet, cash flow and key ratios, year by year →

Founded
1911
Head office
Osaka, Japan
Listed
1949
Founder
Namura Gennosuke
Revenue · FYE Mar 2026
$1.0B (¥159bn)
Net profit · FYE Mar 2026
$136.6M (¥22bn)
Namura Shipbuilding: long-term performance & turning pointsSales (revenue) and profit-margin ratio
Sales (¥ bn)Net margin (%)

1911An Osaka ironworker on his own

Revenue (¥ bn, bars) · net margin (%, line)
Source: securities reports
  1. 1911Namura Gennosuke founds the Namura Shipbuilding Ironworks in Osaka
  2. 1913Moves to Namba-jima and takes the Namura name on the gate
  3. 1915Delivers the 300 GT Uragamaru; wartime orders scale up
  4. 1931Buys the former Murao yard; incorporated as a joint-stock company

The company begins with a family that lost everything. Namura Gennosuke (b. 1878) was the fourth son of a Harima landowner whose father sank the family land into building a harbour that storms destroyed; by thirteen the boy was apprenticed to a smith, by fifteen he was an iron worker at the Kobe yard that is now Kawasaki Heavy Industries, and then a sixteen-sen-a-day hand at Osaka Iron Works — today’s Hitachi Zosen Sakurajima. Ten years there taught him the trade, and in February 1911 he left to work for himself, in his own words because “at a company they won’t let you work overtime; on your own you can work as much as you like.”

He started at the mouth of the Ajikawa river in Osaka, close to the “Genbei ferry,” and in 1913 moved across to Namba-jima and hung out the sign of the Namura Shipbuilding Ironworks. The First World War pulled the yard upward fast: from the 300-gross-ton Uragamaru delivered at the end of 1915, orders scaled to roughly 1,000-gross-ton ships by 1920. The founder’s watchword through it all was the opposite of ambition — “take half the profit if you must, but be frugal and let none of the little profit escape.”

In April 1931 the business bought the plant of the defunct Murao yard and reorganized as a joint-stock company, Namura Shipbuilding Co., Ltd. Twenty years after one man had set up alone on a riverbank, it was a mid-sized Osaka Bay yard with a corporate form — and, having used the Murao purchase to clear out the abusive labour contractors it had inherited, one that intended to run its own shop floor.

Read the full history in Japanese →


1949Listing, capital, and the move to Imari

Revenue (¥ bn, bars) · net margin (%, line)
Source: securities reports
FY1974 · unconsolidated
Revenue$62M
Net income$1M
Net margin2.2%
FY1985 · unconsolidated
Revenue$112M
Net income$7M
Net margin6.2%
  1. 1949Lists on the Osaka Stock Exchange, capital $22,222 (¥8m)
  2. 1956Mikasa Maru delivered to NYK — a major line’s first big order to a mid-tier yard
  3. 1961Steel-structure plant: first business outside shipbuilding
  4. 1972Ground broken on the Imari yard in Saga Prefecture
  5. 1974Imari yard completed; the main works leave Osaka
  6. 1979Osaka plant equipment sold; production consolidated at Imari

In June 1949 Namura listed on the Osaka Stock Exchange with capital of $22,222 (¥8m). What followed was twenty-three years of almost metronomic capital raising — 1949, 1951, 1956, 1960, 1963, 1966, 1972 — lifting paid-in capital roughly 190-fold, to $5M (¥2bn). A family firm that refused to over-invest on debt financed its growth through the equity market instead, in step with the shipbuilding boom of the high-growth decades. A steel-structure plant in 1961 took it onto land-based work, its first move outside ships.

The job that proved what the yard had become was the Mikasa Maru, a 4,100-gross-ton shelter-deck cargo ship laid down in 1955 and completed in March 1956 for NYK Line. Namura won it in open competition against the majors, and it was the first time Japan’s largest shipping company had entrusted a large cargo ship to a mid-tier builder. A small yard on the Kizugawa had reached the standard of the giants. Its 1967 company history distilled the tradition into three words: cooperation, research, execution.

The constraint was geography. Hemmed in between Osaka’s rivers, the yard could not build the ever-larger hulls the market wanted. So in 1972 Namura broke ground on a new yard at Imari Bay in Saga Prefecture, completed in November 1974 — a wholesale relocation of the main works to western Kyushu, six decades after the founding. The Osaka plant’s equipment was not sold off until 1979, and through the 1980s the group thickened around Imari with offshore-structures work and a string of subsidiaries.

Read the full history in Japanese →


1991Three yards

Revenue (¥ bn, bars) · net margin (%, line)
Source: securities reports
FY2002 · consolidated
Revenue$485M
Net income
Net margin
FY2015 · consolidated
Revenue$1.1B
Net income$121M
Net margin10.8%
  1. 1992Enters machine tools via Mec Machinery
  2. 2001Takes a stake in Hakodate Dock
  3. 2007Second round of capacity investment at Imari (VLCC class)
  4. 2008Raises Hakodate Dock to 88.7% of votes — control
  5. 2013Listed on the First Section of the Tokyo Stock Exchange
  6. 2014Sasebo Heavy Industries acquired by share exchange — three yards

The 1990s were spent diversifying away from hulls — an American ship-operating subsidiary bought in 1988, machine tools entered in 1992 with Mec Machinery, a 31.6% tender offer for Orii in 1997 and the merged Oriimec in 2000. None of it displaced shipbuilding at Imari as the earnings engine; the side businesses stayed supplementary, and would later be sold when cash was needed.

The real expansion was in yards. Namura took a stake in Hakodate Dock in 2001 — Hokkaido’s only mid-sized builder, with newbuilding, repair and naval work — and in 2008 underwrote its entire private placement to reach 88.7% of the votes and outright control. Two rounds of capital investment at Imari in 2006 and 2007 lifted it to VLCC and 100,000–200,000 dwt bulker capability. Then in October 2014 Namura took Sasebo Heavy Industries as a wholly owned subsidiary in a share exchange, paying in paper rather than cash.

The result was Imari, Hakodate and Sasebo — the largest production network any mid-tier Japanese shipbuilder had, spanning merchant ships, naval repair and specialist vessels, listed on the First Section of the Tokyo exchange after the 2013 merger of the Tokyo and Osaka markets. Consolidated revenue rose from ¥124.5bn in the year to March 2014 to ¥147.2bn two years later, on recurring profits above ¥22bn. It was the high-water mark, and it lasted about eighteen months.

Read the full history in Japanese →


2016Five losing years, then a reversal

Revenue (¥ bn, bars) · net margin (%, line)
Source: securities reports
FY2016 · consolidated
Revenue$1.4B
Net income$67M
Net margin5%
FY2026 · consolidated
Revenue$1.0B
Net income$137M
Net margin13.6%
  1. 2017First of five consecutive years of operating losses
  2. 2018Oriimec sold to Amada — exit from machine tools
  3. 2022Sasebo newbuilding suspended; shipbuilding concentrated at Imari
  4. 2022Moves to the TSE Standard market
  5. 2025Operating margin 18.5% — a record year

From the year to March 2017 Namura posted five consecutive years of operating losses, as Chinese and Korean yards bid merchant work down and the fixed cost of three yards bore the weight. Cumulative net losses across the loss-making years ran past ¥65bn, and consolidated net assets nearly halved, from ¥86.9bn (March 2015) to ¥43.7bn (March 2022). The machine-tool business went to Amada in 2018 after twenty-six years, sold to fund the shipbuilding losses.

The structural answer came in 2022: Namura suspended newbuilding at Sasebo and narrowed it to naval repair for the Ministry of Defense and marine machinery, converting its loans to both Sasebo and Hakodate into equity to shore them up. Newbuilding was concentrated at Imari alone. In the same months the company dropped to the TSE Standard market under the 2022 segment reshuffle — a demotion and a restructuring executed together.

Then the market turned. With Chinese and Korean capacity saturated, prices for mid-size bulkers, tankers and container ships at Imari improved 20–30% year on year, and revenue roughly doubled in three years — ¥83.4bn (FY2021) to ¥159.2bn (FY2024) — with operating profit reaching $194.7M (¥30bn) and an 18.5% operating margin, the best in the company’s history. Whether that is a durable advantage or a borrowed one is the open question: the margin rests on rivals being full, and the fourth-generation family president, Namura Kensuke, now has to decide what a concentrated Imari and two shrunken yards should look like when the cycle turns again.

Read the full history in Japanese →


Key decisions — the author’s view

Revenue (¥ bn) · net margin % · around FY1972

Leaving Osaka: building the Imari yard (1972)

Giving up a river for a bay

What Namura assumed at Imari was a capacity of three and a half 80,000-gross-ton ships a year — a different order of magnitude from the 40,000 gross tons a year the Osaka head works could manage as of March 1961. This was not reinforcement of an existing site; it was an investment that reset the size of the company itself. A firm that had always advertised its conservatism was, past its sixtieth year, testing its own self-description: that at the decisive moments it commits boldly to plant.

The speed at which Imari became the mainstay, however, was not what the plan assumed. The first ship was delivered in March 1975, just after the first oil shock, and Japanese shipbuilding then entered years of falling orders and capacity disposal. That the Osaka plant’s equipment was not sold until October 1979 — five years after Imari was completed — suggests the old site could not simply be folded up. Choosing a new location is tested less by whether the land was good than by how long the company can afterwards keep concentrating its resources in one place.

Revenue (¥ bn) · net margin % · around FY2014

Acquiring Sasebo Heavy Industries and building a three-yard group (2014)

Between expanding and shrinking

It is too quick to file this away as a failure of scale. Against the Chinese and Korean cost offensive, the reading that a single yard’s output could not withstand price competition was reasonable for a mid-tier Japanese builder of the time. There is a coherent logic, too, in president Namura Kensuke choosing a share exchange over cash — assembling the country’s third-largest completion volume while keeping the balance-sheet cash intact, turning boom-time earnings into capacity. The problem was not the widening itself but that merchant demand thinned within a few years of the deal, leaving three yards with nothing to fill them.

And the expansion was wound back inside eight years. Sasebo’s newbuilding stopped, Sasebo and Hakodate were both narrowed to repair and naval work, and Namura ended up doing exactly what it had done before — concentrating newbuilding at Imari. The irony is that this return to Imari is what produced the 18.5% operating margin of the year to March 2025, the highest in the company’s history. The decision to build a three-yard group and the decision to fold it back both invert depending on where in the shipbuilding cycle they were taken. Namura’s three yards read as a case in which the rightness of growing and the rightness of narrowing traded places inside one decade at one company.

Revenue (¥ bn) · net margin % · around FY2021

Suspending newbuilding at Sasebo and concentrating shipbuilding at Imari (2021)

Did shrinking build the base for the recovery?

The core of this decision does not fit inside the phrase “cutting a loss-making business.” Namura had brought Sasebo under its wing in 2014 precisely to counter the Chinese and Korean yards, and it stopped that yard’s newbuilding itself just eight years later. Pressed by five straight years of operating losses, it folded a production network it had only just widened back to the one site where the numbers worked — retrenching a yard it had bought without waiting for the upturn. That is where the tension of this restructuring shows.

That said, the V-shaped recovery can be credited to the suspension only because the market reversed. Chinese and Korean capacity saturating, and Imari’s order prices improving, were external; Sasebo’s pivot to repair rests on demand from US naval vessels. Still, had Namura carried the fixed cost into a sixth losing year, it would not have had the strength left to carry the upturn through to consolidated earnings. The quality of this rebuild lies less in the shrinking itself than in the choice of which yards to keep and what to narrow them to.

Each heading links to the full Japanese analysis — background, decision and outcome, with sources.


References & sources

This is a condensed English edition. The full, source-by-source history — with the detailed narrative, financial tables, shareholders and executives — is maintained in Japanese: 日本語版(詳細)— Namura Shipbuilding full history in Japanese →

  1. Namura Shipbuilding Co., Ltd. — 有価証券報告書 (annual securities reports) and quarterly / full-year results disclosures.
  2. Fifty-Five Years of Shipbuilding『造船55年』, Namura Shipbuilding Co., Ltd., 1967 (the company’s own history; founder’s biography, the Osaka yards, the Mikasa Maru).
  3. Kabushiki Kaisha Nenkan — 株式会社年鑑, 1962 edition (capital, plant and officer records).

Yen amounts are converted at the average rate of each figure’s own year — not today’s rate; revenue charts are shown in yen. Exchange rates & sources — the full ¥/US$ table →


Disclaimer


Data API

Namura Shipbuilding’s history, financials, executives and shareholders are published as static JSON — no key, plain GET.

Method Endpoint Returns
GET /api/companies.json All companies
GET /api/7014/manifest.json Resource index
GET /api/7014/history.json History overview
GET /api/7014/timeline.json Chronology
GET /api/decisions.json All management decisions (index)
GET /api/7014/decisions.json Management decisions (index)
GET /api/7014/decisions/{slug}.json One decision (full dossier)
GET /api/7014/executives.json Executives
GET /api/7014/shareholders.json Major shareholders
GET /api/7014/financials.json Financial statements
GET /api/7014/financials-longterm.json Long-term results
GET /api/7014/segments.json Business segments
GET /api/7014/regions.json Sales by region
GET /api/7014/workforce.json Workforce