Company history

The company has no founder. In December 1944 the Ministry of Munitions issued a consolidation plan for the electrical contracting trade, and Eidensha and thirteen other firms — all subcontractors already stringing distribution lines for Kyushu Haiden, the wartime regional power monopoly — were folded into a single entity, Kyushu Electric Works, capitalized at ¥2.5 million and headquartered in Fukuoka. Two further rounds of mergers followed within three months, bringing the total to nineteen companies. In October 1945, two months after the surrender, it opened a Tokyo branch — its first foothold outside Kyushu, and one that would matter enormously seven decades later.

What the merger did not supply was customers. The company had been handed skills and men by decree and had to find demand afterwards, and in June 1947 it settled the question in the simplest available way: a distribution-work commission contract with Kyushu Haiden that tied its order book directly to the utility’s capital plan. When the 1951 restructuring of the electricity industry turned Kyushu Haiden into Kyushu Electric Power, the contract carried over intact. Post-war industrial recovery lifted demand, and indoor wiring work for government offices and private firms began to arrive alongside it.

Then the client narrowed the mandate. Generation and substation work required different engineering from distribution lines, and as Kyushu Electric pushed ahead with new power sources it decided those fields should be handled by specialists. In July 1953 Kyushu Electric Works spun off its construction division — generation, substation and transmission — as a separate company, later Kyuken, retained only as an equity-method affiliate. From then on, everything the utility ordered from the parent was distribution-line work. What remained in-house was distribution lines and indoor wiring, and the company began building the scaffolding around them: a materials-procurement subsidiary in 1954, a staff training institute in 1962 (the ancestor of today’s Kraftia Academy), and in 1963 the first of a network of prefecture-level construction subsidiaries.

In July 1964 the company began selling air-conditioning and plumbing work. The logic was adjacency: it was already wiring the interiors of new buildings, so it offered to take the ducts and pipes as well. Water treatment followed in 1971, public sewerage in 1981. None of it moved fast — pipe work was 13.2% of completed works in the year to April 1971 and still relied on subcontractors for more than half its volume — but it opened a second tap. A company whose order flow came from one utility’s capital budget now also answered to building owners and municipalities.

The shift shows up slowly in the revenue mix. In the year to April 1971, indoor wiring was 57.2% and distribution lines 28.7% — electrical work alone 85.9% of the total. By the year to April 1984, indoor wiring was 45%, distribution lines 31%, and HVAC and piping 22%. Execution stayed in-house as a matter of principle: 5,246 field workers on the books at April 1971, subcontracting only about 27% of construction cost and just 20% within electrical work — remarkably low for the trade — and a payroll that included 3,859 licensed electricians among 8,044 nationally certified holders.

Capital arrived in a rush. The company listed on the Osaka second section and the Fukuoka exchange in November 1968, moved to the Tokyo Stock Exchange second section in November 1971 with a 1.5-million-share offering at ¥350, and was promoted to the first sections of both Tokyo and Osaka in September 1972 — ten months after the second-section listing, four years after its market debut. At the time it ranked ninth in the industry by completed works, with 2.8% of the market against Kanto Electric Works’ leading position. Its dependence on its parent utility was 29.7% — low next to Kanto’s 51.7% and Tokai’s 54.4% — and 63.0% of orders came from private companies including Takenaka, Shimizu, Kajima and Obayashi. Geography, however, had not moved at all: 91.2% of work was still done in Kyushu.

In December 1989 the company dropped “electrical works” from its name and became Kyudenko. The label had stopped describing the business — HVAC and piping were 22% of sales, distribution lines had fallen to 31% — and the new name covered water treatment, housing and an environmental venture in Taiwan as well. But the name change did not alter the underlying dependency, only its wording. Orders still originated in other people’s capital plans, and from the late 1990s two of those plans contracted at once: national public-works budgets were cut and the utilities held back on capital spending.

The result was twenty years of near-perfect flatness. Consolidated sales were ¥237.4 billion in the year to March 2002 and ¥239.3 billion in the year to March 2013 — twelve years spent inside a band of ¥222.6bn to ¥251.8bn, never once above ¥260bn. Ordinary profit swung between ¥3.3bn and ¥7.9bn with no trend. In the year to March 2007 the company posted a net loss of $22.1M (¥3bn) — its first consolidated loss since founding — even though revenue that year was the highest of the twelve and both operating and ordinary profit were positive. Local business press of the period listed Kyudenko among Fukuoka’s struggling majors: not loss-making, but earning too little on its size.

The groundwork for the turn was nonetheless being laid. An executive-officer system came in 2008, and in July of that year the Tokyo branch opened in 1945 was upgraded to a Tokyo head office — an organizational bet that the metropolitan market, not Kyushu, would carry the next decade. In 2012 the feed-in-tariff law drew the company into utility-scale solar, its first real involvement with power generation since it had given that work away in 1953, fifty-nine years earlier.

In April 2013 Nishimura Matsuji, a career sales man who had joined in 1971 and run the Saga and Fukuoka branches before heading sales and the Tokyo head office, became president. His diagnosis was that betting the order book on a handful of large jobs from one utility left the company exposed to that utility’s budget, and his answer was to spread the risk across many customers: move the centre of gravity to small and mid-sized work in the Tokyo and Osaka metropolitan areas. Timing helped — metropolitan building-services demand was recovering, and Olympic-related work followed — but the effect was dramatic. Consolidated sales rose 46% in five years, from ¥279.3bn in the year to March 2014 to ¥408.1bn in the year to March 2019; ordinary profit rose 4.5 times, from ¥8.9bn to $366M (¥40bn); net profit 7.2 times; operating margin from 2.5% to 9.0%.

One project resisted the acceleration. In 2014 the company joined Kyocera, Orix, Mizuho and a German developer in an agreement to build Japan’s largest solar plant on Ukujima, a depopulated island off Nagasaki — 430MW at the time, about ¥150bn, panels across a quarter of the island, and a 60-kilometre submarine cable to the Kyushu grid. Three months later Kyushu Electric suspended its responses to grid-connection applications, and other utilities followed. The plan has since grown to 480MW and roughly ¥200bn, with an operating company formed in 2017 in which Kraftia is both investor and contractor — but eleven years after the agreement, permits are in hand and the start of operation could slip to fiscal 2029. It is a study in the company’s oldest constraint: the work exists, but someone else controls when it begins.

Under Sato Naofumi, who arrived from Kyushu Electric’s vice-presidency, and from April 2023 under Ishibashi Kazuyuki, the metropolitan strategy held: sales reached ¥473.9bn in the year to March 2025 and ¥476.1bn in the year to March 2026, with ordinary profit of ¥58.2bn — roughly double the revenue of thirteen years earlier. Ishibashi then named the structural problem directly. Rather than wait for developers to order work, the company would take small equity stakes in data-centre and battery-storage projects in order to secure the construction contracts that follow — manufacturing its own demand instead of inheriting it. In October 2025, marking eighty years since the wartime merger, the company shed the name that pointed at its parent utility and became Kraftia. Its medium-term plan targets ¥60bn of ordinary profit and ROIC above 10% by fiscal 2029, with headcount rising from 10,828 to 12,000; the next milestone it has set itself is the centenary in 2044.