Company history

In October 1918 Nakamura Seishichiro — seventh son of an accountant to the Hirado domain, who had gone to Hokkaido at twelve, studied in the United States at eighteen, and moved troops and freight through the wars with China and Russia — bought a small contracting firm called Isobe-gumi in Moji, Fukuoka, and renamed it Sankyu Unyu. What he had actually bought was a relationship: Isobe-gumi held the materials-handling work inside the state-run Yawata steelworks, then the core of Japanese steel production. The new name combined the first characters of the two regions the firm worked, San (Sanyo) and Kyu (Kyushu), with the English “thank you” the founder had picked up in London — gratitude to the customer, made into a company name.

That set the pattern for the next seventy years. Sankyu did not sell a service into a market; it stationed men permanently inside one client’s plant and took on the labour there — unloading ore and coal shipped from Korea, Manchuria and Shandong, working the yards of Yawata and the navy fuel depots at Tokuyama and Hikari. When the steelworks expanded, the tonnage and the headcount expanded with it. It was stable work that compounded, and it meant one customer’s production plan set Sankyu’s results.

War nearly broke the firm: of 598 men sent to the southern front, 519 were killed. The founder died in 1948, and under the second president Sankyu rebuilt by adding what the reconstruction economy needed — road haulage in 1948, construction in 1949, forwarding in 1950, trucking in 1952, warehousing in 1960. Then in 1954 came the order that changed its character: the first plant export by a postwar Japanese company, a viscose rayon plant for Yugoslavia, handled end to end. Heavy-lift skills learned inside a steelworks turned out to travel.

The second president died suddenly in 1959 at forty-five. His successor immediately renamed the company Sankyu Unyu Kiko — “transport and machinery engineering” — and declared entry into the installation of steelmaking machinery and petrochemical plant. The name was the strategy stated in public: the contract-labour base inside the steelworks would now be paired with a technical trade, kiko, and the two would be run as a matched pair. Listing followed — the Tokyo Stock Exchange Second Section and Fukuoka in 1962, promotion to the First Section in 1966 — which gave Sankyu the balance sheet to keep investing ahead of demand rather than simply following its customers’ plans.

Overseas expansion then took a particular form. Sankyu did not go abroad on its own account; it went with its customers. When Japanese steel and chemical makers built plants in Asia and Latin America, Sankyu supplied the heavy-lift installation and the in-plant logistics, reproducing at each new site the same relationship it had at Yawata. A Malaysian office opened in 1964, Sankyu Singapore in 1971, Brazil in 1972, then Hong Kong, Indonesia, Malaysia and — in 1979 — plant-export work for China’s Baoshan steelworks, some 1.6 million cubic metres of cargo.

By 1974, with the Okochi Memorial Production Prize, the firm had a slogan for what it had become: “technology and systems.” In 1980 it dropped Unyu Kiko from the name and became simply Sankyu Inc. — a deliberate refusal to let any one of its three pillars, yard labour, transport or machinery, define it.

On 25 February 1986 Nakamura Kisen — the shipping company the founder had started in 1905, and Sankyu’s parent — filed for bankruptcy in the shipping slump with $353.1M (¥60bn) of debt, more than Sankyu’s own annual sales. A month later, on 24 March, the fourth president died at sixty-seven, and Nakamura Koichi, his eldest son, took the presidency at thirty-five. Sankyu now faced two crises at once: capital independence forced on it by the parent’s collapse, and the shrinking of its core business as Nippon Steel and the other mills restructured and cut back the work inside their gates. Outsiders openly doubted the company could continue.

The answer was to rebuild the earnings structure rather than defend the old one. Nakamura Koichi pushed group reorganization while accelerating — not pausing — the overseas build-out, adding Thailand in 1988 as Japanese carmakers and electronics firms moved in. The pivot completed in October 1990 with the merger with Okazaki Kogyo, a machinery-installation and plant-maintenance firm: the “new Sankyu” now had a high-margin engineering business capable of carrying a low-margin logistics business through the decline of domestic steel.

The 1990s then extended the same competence into new customers. Sankyu was the first Japanese firm to win ISO 9001 certification for heavy machinery work (1997), and in the same year took over Procter & Gamble’s consumer-goods distribution — its entry into third-party logistics, in effect selling to consumer brands the inventory-and-handling integration it had learned in a steelworks yard. In March 1998 the head office moved from Kyushu to Kachidoki in Tokyo.

The two-wheel structure paid off in the 2010s. As Japanese manufacturing shifted production abroad and domestic steel and chemical plants aged into heavier turnaround-maintenance cycles, both wheels turned at once: revenue rose from ¥481.3bn with ¥21.3bn of operating profit in the year to March 2015 to a record $5.3B (¥573bn) and ¥39.2bn in the year to March 2019. The split explains the strategy. Machinery and engineering earned a 10.5% operating margin; logistics earned 3.5%. Sankyu is, in profit terms, a plant-maintenance contractor that also moves freight.

So it kept buying capability rather than scale — non-destructive testing (Nihon Kogyo Kensa, 2013), regional engineering coverage (Sanyo Kogyo, 2024) — while extending the overseas network through China, Taiwan and Mexico. The aim, stated at the centenary in 2018, was to be able to take on inspection, installation, maintenance and logistics inside a steelworks, refinery or power station anywhere, as a single package: the Yawata relationship, replicated.

In 2016 Nakamura Koichi handed the presidency to his son Nakamura Kimihiro, the sixth generation, and in 2025 the CEO title followed. The plan he inherited — MTP2026, with a 2030 target of over ¥700bn in revenue and an 8% operating margin — turns on whether the founding pattern still works in new ground. Growth is aimed at Saudi Arabia and India, where Sankyu is again arriving alongside its customers; at home the problem is the other wheel, logistics, still stuck at a 3.3% margin against 11.3% for engineering in the year to March 2025.