Triton paid €401m for Trench Group
A study of Triton Partners' exit from Trench: what Trench makes, what Triton paid and has already taken out, where the company sits in the grid and AI buildout, and whether it gets sold or listed.
Everything here comes from public documents: company releases, Siemens Energy's accounts, rating agency notes, competitor filings and the trade press. Trench publishes no profit figure, so where I use one I say whose it is.
Triton Partners took ownership of Trench Group on 1 April 2024. Siemens Energy's accounts record a preliminary purchase price of €401m. On 23 September 2026 Bloomberg reported that Triton is exploring a sale or a listing of the company and has hired Morgan Stanley to advise on both. Its sources said Triton is aiming for a valuation of several billion euros and that an exit could come as early as next year. They also said the talks are at an early stage. The report came thirty months after Triton took over.
I wrote a short note on this on 1 October and said any fund that wants to own the bottleneck of the AI buildout should be looking at Trench. This is the longer version, and the answer came out narrower than the note.
Who Triton is
Triton Partners is a European mid-market private equity firm, founded in 1997 and owned by its partners. It says it has raised more than €25bn. It has done carve-outs from industrial groups before, and its own list includes Bosch, Siemens, SKF, Voith and Volkswagen. Trench sits in Triton Fund V, a €5bn fund that closed in December 2018. Triton announced the close of its sixth fund at €5.5bn in March 2026.
Two recent exits went different ways. Renk, the defence gearbox maker, was listed in Frankfurt in February 2024 after a first attempt was pulled the previous October. Triton sold its last shares in August 2025, and Bloomberg reported a return of seven times its money on the investment. Kelvion makes heat exchangers, and data-centre cooling is its largest segment. Triton sold a majority to Apollo funds in January 2026 and kept a minority. On 31 August 2026 SLB agreed to buy Kelvion from both for $3.4bn in cash plus about $700m of debt. Triton's head of investor relations told Mergermarket that about half of its exits go to large strategic buyers.
What Trench makes
Trench is based in Berlin. It has 11 factories and more than 3,000 employees, and it makes three things that all sit in or next to a high-voltage substation.
Trench makes
Which goes into
Bought by
Built for
Source: Trench Group and trade press
A bushing is the insulated conductor that carries current at high voltage through the earthed wall of a transformer. Every large power transformer needs a set. Bushings are about 5% of a transformer's cost. A CIGRE working group found that for utilities in Germany, Austria, Switzerland and the Netherlands they were behind around 12% of major transformer failures. Trench has bushing plants in Germany, France and China, and since July 2026 in Charlotte, North Carolina.
Instrument transformers step current and voltage down to levels that protection relays and meters can read. The coil products include air-core reactors, which limit fault currents, smooth the current in HVDC links and filter harmonics. Trench makes those in Austria and Canada.
Trench's bushings go to the companies that build transformers, among them Siemens Energy, Hitachi Energy, GE Vernova, Hyosung and SGB-SMIT. Its instrument transformers and coils also go to grid operators and contractors. By May 2025 it had framework agreements with Siemens Energy, Hitachi Energy and GE Vernova that run into the middle of the next decade. Hitachi Energy and GE Vernova make bushings and instrument transformers in their own factories as well, so two of the customers Trench names are also its competitors.
What Triton bought
Siemens Energy was in trouble in 2023. Its wind business had serious quality problems and the group expected a loss of about €4.5bn for the year. That October it agreed to sell Trench. Euro am Sonntag called the business solid but low-margin. Its chief executive, Bahadir Basdere, later said it had long served GE and Hitachi under Siemens Energy, "but always with the handbrake on".
Siemens Energy's accounts date the signing to 11 October 2023 and the transfer to 1 April 2024. Triton took over 2,400 employees, nine factories and a chief executive who stayed. Siemens had paid €285m for Trench in 2004, when it had about 1,800 employees.
Source: Trench Group results, 16 December 2025, and POWER Magazine, 7 September 2026. Fiscal year dates from Trench's sustainability report
Revenue was €683.6m in fiscal 2024 and €906.5m in fiscal 2025, up 33%. In the first three quarters of fiscal 2026 it was more than €860m, up 31%. Order intake was €1.04bn, then more than €1.4bn, then almost €1.5bn in three quarters. The backlog is above €2.1bn.
Some of that is the market. The IEA expects about $550bn of grid spending worldwide in 2026, nearly 20% more than in 2025. Some of it is independence. Trench is no longer owned by a competitor of its customers, and it now has long-term agreements with all three of the large system suppliers. The rest is investment. There is a €400m capacity programme running to 2030, the new plant in Charlotte, projects to double coil capacity in Austria and Canada, three acquisitions and more than 800 people added since the carve-out.
Trench does not publish EBITDA. It says its adjusted EBITDA margin rose five percentage points in fiscal 2025. Börsen-Zeitung, citing a Moody's report published in February 2026, gives net debt of 2.2 times EBITDA at the end of September and debt of €621m. That puts EBITDA at about €280m at most. On fiscal 2025 revenue the margin is then 31% at most. S&P forecasts more than €380m for fiscal 2026 at a 33.5% margin. Three years ago the press was calling this business low-margin.
What Triton has already taken out
Triton has been paid before the exit. The method is a dividend recapitalisation. The company borrows against its own earnings and passes the cash up to its owner. The debt stays with the company and is serviced out of its cash flow.
In February 2025 Trench announced a €380m term loan. S&P says the money mainly refinanced a €210m loan already in place and repaid a shareholder loan in full. A second round followed, and a Moody's note is titled "Second dividend recapitalisation in 2025 increases debt". Börsen-Zeitung, citing the Moody's report from February 2026, says €450m was taken out across two refinancing rounds. That is more than the €401m Triton paid for the whole company, and it came out in under two years. In June 2026 Trench raised a €1.4bn term loan. PitchBook reported on 17 June that it refinanced a €500m term loan and helped fund a dividend of up to €1bn.
That makes up to €1.45bn out against a purchase price of €401m. Lenders took it. PitchBook has the loan pricing at 300 basis points over Euribor, below the 325 to 350 first talked. €1.4bn is under four times S&P's EBITDA forecast for this year.
Source: Siemens Energy accounts, Börsen-Zeitung citing Moody's, PitchBook, White & Case
The payouts and the debt are about the same size. So what Triton and any co-investors take home in total will be close to the enterprise value the exit achieves. On the range I get to below, that is €2.8bn to €5.9bn, or 7 to 15 times the price paid. Triton's equity cheque was never disclosed and a bank syndicate financed part of the purchase, so the return on the equity it put in is higher than that.
A buyer inherits the other side of this. Trench carries €1.4bn of term debt. Fitch moved its outlook to negative in June 2026 and expects leverage of 5.5 times EBITDA at September 2026.
Where Trench sits in the grid and AI buildout
Bloomberg set its report against a surge of investor interest in German companies involved in the AI buildout. For bushings I think the link is real. For the other two product lines I could not find the evidence.
Hitachi Energy is one of Trench's two large competitors in bushings, and it publishes standard delivery times for each plant. The list for its Swedish plant, updated on 26 August 2026, shows 145 weeks for ARF bushings rated 245kV to 420kV. Several other bushing families from the same plant show 25 to 40 weeks. The list for its Chinese plant, updated on 4 August, shows 14 weeks for the ARF 245kV and 420kV. A report from the US National Laboratory of the Rockies in May 2026, based on industry interviews, has 345kV bushings taking more than 130 weeks and no domestic supplier at 765kV. Before the pandemic, it says, a 230kV bushing took 40 weeks to a year. The same report gives 80 to 90 weeks as the time to manufacture bushings and tap changers.
Source: Hitachi Energy standard delivery times, August 2026, and National Laboratory of the Rockies, May 2026
The shortage is in Western capacity at high voltage. A buyer who can take the Chinese-made unit waits about three months. A US utility that needs a Western one waits more than two and a half years. Few companies can fill that gap. The chairman of Yash Highvoltage, an Indian bushing maker, told investors in October 2025 that Hitachi, Trench and GE control close to 80% of the global market. New capacity also takes time to come on. Trench's own Charlotte plant opened in July 2026. It makes bushings below 230kV this year, goes up to 550kV in 2027 and is due to ship its first 765kV bushings in early 2028.
I found no published lead times for instrument transformers or coils, and among Trench's products the reports I read name only bushings as a constraint. Competitors have been adding capacity. Arteche, a Spanish instrument transformer maker, said with its first-half 2026 results that capacity in its measurement business is up 20% and that delivery times on its most strained lines have shortened. Coil Innovation in Austria opened an expansion in May 2026 that adds 60% to its production capacity.
The link to AI runs through the transformer. A data-centre campus needs a grid substation, the substation needs transformers and each transformer needs bushings. The largest contract Trench had signed as of February 2026, worth more than $59m, is with Astor, which supplies power transformers for data centres in North America. Its capacity agreement with Meta, announced in September 2026, is delivered through equipment makers. Trench says its direct contracts with hyperscalers are for the smaller voltage levels, and it does not disclose how much of its order book comes from data centres. The closest public reference I found is HD Hyundai Electric, a Korean power equipment maker, which expects data centres to be about 6% of new orders in its power equipment business in 2026 and 16% in 2027.
So Trench is a grid company, and data centres are one layer of its demand alongside transmission expansion, renewables connection and the replacement of old equipment. North America accounted for about half of Trench's order intake in the first half of 2026, and its hyperscaler agreements are there.
Where it can grow
The largest opening is the US at 765kV. Trench cites plans for more than 4,000 miles of new 765kV lines and 50 to 70 new substations by 2032, and the national laboratory report has no domestic supplier of bushings at that voltage. Charlotte is planned for up to 3,500 bushings a year at first, with room for 10,000. Hyosung and SGB-SMIT have signed capacity agreements for bushings up to 765kV. Trench also reports supply agreements and first orders from US makers including Pennsylvania Transformer and Hyundai Power Transformers USA.
Capacity is the second. Part of the bushing plant at Troisdorf has worked a 24/7 shift model since January 2026, and Basdere has said that if he could double capacity at a stroke he could fill the factory at once. The plan is €400m on new capacity by 2030 and a workforce of 4,000.
Two slower ones sit behind those. The first is HVDC. Trench makes reactors and bushings for HVDC converter stations, and its agreement with Hitachi Energy covers HVDC reactors. TenneT's 2GW programme alone is 14 offshore HVDC systems planned for 2029 to 2032. The second is SF6. EU rules bar new high-voltage switchgear that uses fluorinated gases from being put into operation, from 2028 up to 145kV and from 2032 above it. TransnetBW, a German grid operator, said in May 2025 that it prefers to replace its SF6 instrument transformers with ones insulated by natural-origin gases. It referred to "both prequalified manufacturers" and did not name them. Trench has an SF6-free range of instrument transformers up to 420kV.
The Meta agreement may turn out to matter most. A hyperscaler has reserved component capacity itself and will have it delivered through its equipment suppliers. If others follow, Trench gets sight of demand that a component maker does not normally have.
What could go wrong
On the figures above Trench earns a margin of around 30%. It sells to customers whose own grid businesses earn 15% to 20%. In the June quarter Siemens Energy's grid division made 19.9% before special items, GE Vernova's electrification segment 18.4% and Hitachi Energy 14.8%. The profit measures differ, and none is near 30%.
Two of those customers make the same parts and both are expanding. Hitachi Energy is spending $106m to expand its transformer components plant in Tennessee. It says the site will be the largest bushing factory in North America when the work is done, which it expects by mid-2027. With Charlotte's ramp on top, the new Western bushing capacity announced so far arrives in 2027 and 2028. Fitch's rating case has data-centre demand for bushings moderating from 2028.
It has happened before. In December 2012 the head of Siemens's transmission division told investors the market had 30% to 40% overcapacity and that prices in transformer orders had fallen about 6% a year from 2009 to 2012. Pfisterer, which makes cable accessories and insulators for power networks, reported first-half 2026 order intake 9% below a strong prior year and called it "the expected normalization trend". Its backlog still rose.
Against that, Siemens Energy's grid backlog was €51bn at the end of June and Hitachi Energy's was $63.6bn, so the cycle could run well past 2028. A buyer today is still capitalising earnings at what may be the tightest point in the market.
What it is worth
There is no published EBITDA, so I use two cases.
The first takes S&P's forecast of more than €380m for fiscal 2026. US strategic buyers have paid about 12 to 15.5 times forward EBITDA for utility and electrical component makers over the past three years. Hubbell paid about 12 times for Systems Control, nVent about 12 times for Trachte and Hubbell about 15.5 times for NSI, which makes electrical fittings and connectors. On €380m that is an enterprise value of €4.6bn to €5.9bn, and €3.1bn to €4.5bn of equity after about €1.4bn of net debt.
The second is my mid-cycle case. It assumes the margin settles at 20%, which is what Siemens Energy's grid division earns. On revenue of €1.15bn to €1.4bn, EBITDA is €230m to €280m. The low end of that revenue range is this year's run rate and the high end is what S&P's forecasts imply for fiscal 2027. At 12 times, the enterprise value is €2.8bn to €3.4bn and the equity €1.3bn to €1.9bn.
Source: my arithmetic on S&P's forecasts, Trench's nine-month revenue and disclosed deal multiples
The gap between the two is what a buyer pays for believing a 33% margin survives the capacity due in 2027 and 2028. Bloomberg's "several billion" fits the first case on equity. It fits the second only on enterprise value.
Sale or IPO
I think Triton sells it privately.
A listing would be a partial exit. Triton's Renk exit took just under 19 months from listing to the last share sale. The same path here, starting next year, would leave Triton holding stock into late 2028 or 2029. That is after the new capacity has arrived. The balance sheet is the second difficulty. Trench has about €1.4bn of net debt and Siemens Energy has net cash. To list at, say, 2.5 times EBITDA, Trench would have to raise about €0.5bn of new shares on S&P's forecast. Public investors would know they were refinancing the owner's dividend. The market is also thin. Frankfurt saw six IPOs raising €806m in the first nine months of 2026, and no Frankfurt new issue since the start of 2023 has raised more than €1bn. And the sector has come off. By late September Siemens Energy was 24% below its April high, GE Vernova 19% below its June high and HD Hyundai Electric about 50% below its peak.
The case for a listing is that public investors have paid up for smaller grid names. Pfisterer listed on Frankfurt's Scale segment in May 2025 at €27 and still trades at more than twice that. Running the IPO track alongside the sale costs little and keeps bidders under pressure.
The obvious owners are the large equipment makers, and each has a problem. Hitachi Energy and GE Vernova both make bushings, so either would face a competition review. A deal would put two of the three largest bushing makers together. Any equipment maker that owned Trench would also give its rivals a reason to move orders elsewhere once supply loosens. Part of what Triton is selling is that Trench is independent. Siemens Energy sold its bushing business with Trench and has net cash, but it sold for €401m and would have to explain buying it back for billions.
That leaves an industrial group with no overlap, or private equity. On public evidence ABB fits best. It sold its grid business to Hitachi. Its net debt was 0.3 times EBITDA at the end of June, before a $5.5bn cash offer for Rotork. It was reported to have bid for MacLean Power Systems, a US utility components maker, before Blackstone agreed to buy it in December 2025. Among sponsors, Blackstone already owned Power Grid Components and is merging the two.
Any sponsor has the same constraint. European buyout loans averaged 4.9 times EBITDA in 2025, so at 12 times around 60% of the price has to be equity, and Trench is already carrying most of that debt. The buyer's return has to come from earnings. Take a five-year hold, an exit at 12 times and S&P's forecast for this year. At €3bn to €3.5bn the buyer roughly doubles its money if earnings only hold. At €5bn it needs EBITDA more than 60% higher.
I do not expect an infrastructure fund. I could not find a case of a core infrastructure fund buying a high-voltage component maker.
What this tells you
Triton bought a business from an owner in crisis, freed it to sell to that owner's rivals and backed new capacity when the market was short of it. It has taken out up to 3.6 times the purchase price already, and the exit comes on top. That is a very good deal, and selling now is the right decision. New Western bushing capacity arrives in 2027 and 2028, and a seller wants to be out before that shows in lead times.
For a buyer, Trench is a first-rate bushing business with two decent ones attached. At an enterprise value of €3bn to €3.5bn I think it is a good asset, bought on mid-cycle earnings with the shortage as upside. At €5bn and above the buyer is paying for a shortage the industry is already adding capacity to end.
Three things will tell us more. The first is Trench's fiscal 2026 results. Last year's came out on 16 December, with revenue, orders and a margin change but no profit figure. The second is Hitachi Energy's published lead times from Sweden. They should shorten if the market is easing. The third is the first named bidder.