{{Short description|Swiss construction services company}} {{Infobox company | name = Implenia AG | logo = Implenia logo.png | type = [[Public company|Public]] (''[[Aktiengesellschaft]]'') | traded_as = {{SWX|IMPN}} | ISIN = {{ISIN|sl=n|pl=y|CH0023868554}} | foundation = 2006 | location = [[Opfikon]], [[Switzerland]] | key_people = Hans-Ulrich Meister ([[Chairman]])<ref name="Implenia-2017-04-01-001">{{cite web|url=https://www.implenia.com/de-ch/medien/medienmitteilungen?year=2016#2016-03-22-251028|publisher= Implenia|title= Wahl von Hans-Ulrich Meister zum neuen Mitglied und Präsidenten des Verwaltungsrats|accessdate=29 October 2018}}</ref><br /> Jens Vollmar ([[CEO]])<ref name=AR2025/> | industry = Construction: Buildings, Civil Engineering, Service Solutions | products = | revenue = {{decrease}} [[Swiss franc|CHF]] 3,475 million (2025)<ref name=AR2025>{{cite web|url=https://implenia.com/fileadmin/implenia.com/finanzpublikationen_und_praesentationen/2025/FinPub/Implenia-Annual-Report-2025-EN.pdf|title=Annual Report 2025|publisher=Implenia|access-date=9 March 2026}}</ref> | operating_income = {{increase}} [[Swiss franc|CHF]] 140.5 million (2025)<ref name=AR2025/> | net_income = {{decrease}} [[Swiss franc|CHF]] 84.7 million (2025)<ref name=AR2025/> | num_employees = 8,346 (2025)<ref name=AR2025/> | parent = | subsid = | homepage = {{URL|http://www.implenia.com|implenia.com}} | caption = | footnotes = }}
'''Implenia''' is a [[Switzerland|Swiss]] [[real estate]] and construction services company with activities in development and [[civil engineering]] in Switzerland and [[Germany]]. Implenia is also active in tunneling and related infrastructure construction in [[Austria]], [[France]], [[Sweden]], [[Norway]] and [[Italy]]. The Group was formed at the beginning of 2006 from the merger of [[Basel]]-based Batigroup Holding AG with [[Geneva]]-based Zschokke Holding SA.<ref name=":0">{{Cite news |date=30 January 2006 |title=Aus Zschokke und Batigroup wird Implenia |language=de |work=[[Neue Zürcher Zeitung]] |url=https://www.nzz.ch/articleDBU5R-ld.374139?reduced=true |access-date=2023-01-10}}</ref> The headquarters are located in [[Glattpark]] ([[Opfikon]]) in the canton of [[Zürich|Zurich]]. Implenia is one of the [[List of Swiss companies by revenue|500 largest companies in Switzerland]].
== History == === Origin === Implenia was created out of a series of mergers between Swiss regional construction companies, but ultimately from the 2006 merger of Batigroup and Zschokke Holding.<ref name=":1">''"Spatenstich für die Implenia"''. [[Neue Zürcher Zeitung|''Neue Zürcher'' Zeitung]] (in German). 3 March 2006. Retrieved 2023-01-10.</ref>
In mid-1997 Preiswerk Holding AG merged with Schweizerische Strassenbau- und Tiefbau-Unternehmung AG (Stuag) / Stuag Holding AG and Schmalz AG Bauunternehmung / Schmalz Holding AG to form Batigroup Holding based in Basel. Batigroup's core competencies centered on traditional construction activities, including road construction, poured asphalt, civil engineering, tunnel construction and building construction.<ref>{{Cite news |date=6 April 2002 |title=Die Batigroup kommt ans Licht {{!}} NZZ |language=de |work=Neue Zürcher Zeitung |url=https://www.nzz.ch/article82YG7-ld.201519?reduced=true |access-date=30 October 2018}}</ref><ref>H. Reichenberger: ''Fusion von Preiswerk, Schmalz und Stuag Bildung der grössten Baugruppe der Schweiz''. In: Neue Zürcher Zeitung (in German), p. 23, 27 May 1997, retrieved 10 January 2023.</ref>
The basis of Zschokke Holding was the construction company Castor, Hersent et Zschokke, founded in 1872 in [[Aarau]] by Conrad Zschokke (1842-1918), which was transferred to the public limited company Conrad Zschokke in 1909.<ref>Karl Schlieker: ''Deutschland stärkt Implenia''. In: Bürstädter Zeitung (in German), p. 21, 8 February 2017, 10 January 2023.</ref><ref name=":2">''Zschokke und Batigroup - Chronologie der Ereignisse''. In: Neue Zürcher Zeitung (in German), No. 268, p. 23, 15 November 2005, retrieved 10 January 2023.</ref> Through acquisitions and mergers, in 1982 the joint-stock company Heinr. Hatt-Haller and in 1997 Locher & Cie AG, among others, became part of Zschokke Holding, whose headquarters were most recently in Geneva.<ref name=":3">Benjamin Triebe: ''Wer den Gotthard bezwingt, dem steht Europa offen.'' In: Neue Zürcher Zeitung (in German), p. 25, 17 October 2022, retrieved 10 January 2023.</ref> In addition to building construction, Zschokke acquired in particular general planning, general contracting and real estate management.<ref name=":2" /><ref>{{Cite book |last1=Whiteside |first1=R M |title=Major Companies of Europe 1990/91 Volume 3 |last2=Wilson |first2=A |last3=Blackburn |first3=S |last4=Hörnig |first4=S E |last5=Wilson |first5=C P |date=1990 |publisher=Springer Netherlands |isbn=978-1-85333-402-3 |location=[Place of publication not identified] |oclc=1012459337}}</ref>
Due to the largely complementary business areas, Zschokke and Batigroup began talks about a possible merger in summer 2005. Following these discussions, the intention to merge to form Implenia was announced publicly on 15 November 2005.<ref>{{Cite web |last=Köchli |first=Markus |date=16 November 2005 |title=Zschokke/Batigroup: In vier Wochen gebaut |url=https://www.handelszeitung.ch/unternehmen/zschokkebatigroup-vier-wochen-gebaut |access-date=2023-01-10 |website=Handelszeitung |language=de-CH}}</ref> Finally, the shareholders of Zschokke and Batigroup approved the merger at simultaneous AGMs held on 2 March 2006.<ref name=":1" /> ZB Didumos AG, founded as a placeholder company for the future company, was renamed Implenia AG in the course of the merger in 2005. The headquarters of the new company became Zurich.<ref name=":0" />
=== Implenia AG === The shares of Zschokke and Batigroup were delisted from the [[SIX Swiss Exchange]] after close of trading on 3 March 2006. The merger was completed by exchanging shares for the new Implenia shares, the value ratio being set at 65 (Zschokke) to 35 (Batigroup). The first trading day of Implenia shares on the Swiss stock exchange was 6 March 2006.<ref name=":1" />
In 2010, Implenia had acquired the Norwegian Betonmast Anlegg, a Norwegian infrastructure specialist.<ref>{{cite web |title=Implenia AG acquired majority stake of Betonmast Anlegg AS |url=https://www.globalscopepartners.com/transactions/implenia-ag-aquired-majority-stake-betonmast-anlegg |accessdate=31 October 2018 |publisher=Global Scope Partners }}{{Dead link|date=August 2025 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> Since March 2015, the German Bilfinger Construction (now renamed Implenia Construction) with activities in Germany, Austria and Sweden has also been part of the Group.<ref name="implenia-bilfinger-construction2">{{cite web |date=1 January 2015 |title=Implenia is acquiring Bilfinger Construction |url=https://www.tunnel-online.info/en/artikel/tunnel_Implenia_is_acquiring_Bilfinger_Construction_2278389.html |accessdate=31 October 2018 |publisher=Tunnel Online}}</ref> The acquisition of Bilfinger Hochbau followed in 2016.<ref name="implenia-bilfinger-hochbau2">{{cite web |date=3 March 2017 |title=Implenia schliesst Übernahme von Bilfinger Hochbau Aktivitäten ab |url=https://www.finanzen.ch/nachrichten/aktien/implenia-schliesst-uebernahme-von-bilfinger-hochbau-aktivitaeten-ab-1001801665 |accessdate=31 October 2018 |publisher=Finanzen |archive-date=1 November 2018 |archive-url=https://web.archive.org/web/20181101020813/https://www.finanzen.ch/nachrichten/aktien/implenia-schliesst-uebernahme-von-bilfinger-hochbau-aktivitaeten-ab-1001801665 |url-status=dead }}</ref>
On 27 October 2020, Implenia announced an accelerated restructuring starting in 2021, marking a break with the construction group's years-long push for internationalization, which it declared over.<ref name=":4">Giorgio V. Müller: ''Implenia hat noch Pendenzen''. In: Neue Zürcher Zeitung (in German), p. 25, 2 November 2021, retrieved 10 January 2023.</ref> Its stock market value halved over the past two years, largely due to previous project acquisitions and purchases (such as in Sweden between 2015 and 2017). The company withdrew from unprofitable business areas in some markets (Sweden, Norway and [[Romania]]) and has since focused largely on Switzerland and Germany. Here, Implenia is active as a real estate developer and manager, as well as in building construction, civil engineering and specialist businesses such as timber construction and facade technology.<ref name=":3" /> In the rest of Europe, the focus is largely on tunnel construction, as in Austria, France, Sweden, Norway and Italy.<ref>Giorgio V. Müller: ''Implenia auf halbem Weg''. In: Neue Zürcher Zeitung (in German), p. 25, 18 August 2021, retrieved 10 January 2023.</ref> As part of this accelerated restructuring, Implenia announced plans to lay off around 750 people and cut 2000 full-time positions by 2023. This transformation was completed ahead of schedule.<ref name=":4" /><ref>{{Cite web |date=2020-10-27 |title=Baukonzern - Implenia streicht 250 Stellen in der Schweiz |url=https://www.srf.ch/news/wirtschaft/baukonzern-implenia-streicht-250-stellen-in-der-schweiz |access-date=10 January 2023 |website=[[Schweizer Radio und Fernsehen]] (SRF) |language=de}}</ref>
In May 2021, Implenia completed the acquisition of BAM Swiss AG, a healthcare construction services provider in Switzerland headquartered in Basel.<ref name=EM>{{cite web|url=https://implenia.com/fileadmin/implenia.com/finanzpublikationen_und_praesentationen/2021/FinPub/Implenia-GB-2021-EN.pdf|title=Annual Report 2021|publisher=Implenia|access-date=3 March 2021}}</ref> With this acquisition, Implenia took over BAM Swiss AG's current projects such as the planning and realization of the Aarau Cantonal Hospital, the BSSE in Basel – a modern laboratory and research building for biosystems science and engineering – as well as the Felix Platter Hospital project in Basel and an ETH student residence in Zurich.<ref>Fabian Hägler: ''Viel Papier für das grösste Bauprojekt''. In: Aargauer Zeitung (in German), p. 19, 3 August 2020, retrieved 10 January 2023.</ref><ref>{{Cite web |date=30 March 2021 |title=Bau: Implenia übernimmt Basler Generalunternehmer |url=https://www.handelszeitung.ch/unternehmen/bau-implenia-ubernimmt-basler-generalunternehmer |access-date=2023-01-10 |website=Handelszeitung |language=de-CH}}</ref>
Implenia acquired the leading Swiss real estate service provider Wincasa in May 2023.<ref>{{Cite web |last=Triebe |first=Benjamin |date=2023-03-30 |title=Überraschende Handänderung: Wincasa, der grösste Schweizer Immobilienverwalter, bekommt einen neuen Eigentümer |url=https://www.nzz.ch/wirtschaft/implenia-baukonzern-kauft-wincasa-von-swiss-prime-site-ld.1732617 |access-date=2023-06-27 |website=Neue Zürcher Zeitung |language=de}}</ref>
== Corporate structure == Implenia's Chief Executive Officer (CEO) is Jens Vollmar.<ref>{{Cite web |last=Schwanenflug |first=Christoph von |date=2024-08-21 |title=Implenia-CEO André Wyss tritt 2025 zurück |url=https://www.iz.de/personen/news/-implenia-ceo-andr-wyss-tritt-2025-zurueck-2000027781 |access-date=2025-03-06 |website=[[Immobilien Zeitung]] |language=de}}</ref> Also on the Executive Board are Stefan Baumgärtner (CFO), Adrian Wyss (Head Division Buildings), Erwin Scherer (Head Division Civil Engineering),<ref name="Half-Year Report 2024">{{Cite web |title=Half-Year Report 2024 |url=https://implenia.com/fileadmin/implenia.com/finanzpublikationen_und_praesentationen/2024/FinPub/Implenia-HJB-2024-EN.pdf |access-date=2024-09-25 |website=Implenia |language=de}}</ref> and German Grüniger (General Counsel).<ref>{{Cite web |title=Organisation |url=https://implenia.com/de-de/ueber-uns/organisation/ |access-date=2023-01-10 |website=implenia.com |language=de-DE}}</ref><ref name="AR2025" /> Hans-Ulrich Meister is Chairman of the Board of Directors.<ref name=EM/> The company generated sales of CHF 3.475 billion in 2025 and employed 8,346 people in 2025.<ref name=AR2025/> It is headquartered in Opfikon, Switzerland.<ref name=AR2025/>
Implenia's business areas are divided into three divisions: Buildings, Civil Engineering<ref name=":3" /> and Service Solutions.<ref name="AR2025" /> In particular, BBV Systems GmbH, Building Construction Logistics GmbH, Implenia Holzbau, Implenia Fassadentechnik GmbH, Planovita and Encira form the division's units.<ref name="Half-Year Report 2024" />
Implenia is also active in the management of properties in Switzerland through its real estate service provider Wincasa.<ref>{{Cite web |date=2023-03-20 |title=Implenia ist nun auch ein Immobilienverwalter |url=https://www.baublatt.ch/baubranche/implenia-ist-nun-auch-ein-immobilienverwalter |access-date=2023-06-27 |website=Baublatt |language=de }}{{Dead link|date=September 2024 |bot=InternetArchiveBot |fix-attempted=yes }}</ref>
== Major projects == [[File:Gotthard Tunnel.jpg|thumb|Gotthard tunnel]] {{div-col}} Major projects involving the company include: *[[Roxburgh Dam]] completed in 1953<ref>{{cite web|url=http://find.natlib.govt.nz/primo_library/libweb/action/dlDisplay.do?dscnt=0&vid=TF&dstmp=1338835337613&docId=nlnz_tapuhi1270669&fromLogin=true|title=Sign advertising Cubitts and Zschokke, and the Roxburgh Hyro-electric power project, Roxburgh Hydro|accessdate=4 June 2012}}{{Dead link|date=August 2025 |bot=InternetArchiveBot |fix-attempted=yes }}</ref> *[[Dinorwig Power Station]] completed in 1984<ref>Gray, p. 14</ref> *[[Sunniberg Bridge]] completed in 1998<ref>{{Cite web|url=https://structurae.net/en/structures/sunniberg-bridge|title=Sunniberg Bridge (Klosters-Serneus, 1998)|website=Structurae}}</ref> *[[Stade de Genève]] completed in 2003<ref>{{Cite web|url=https://structurae.net/en/structures/geneva-stadium|title=Geneva Stadium (Geneva, 2003)|website=Structurae}}</ref> *[[Poya Bridge|Pont de la Poya]] completed in 2014<ref>{{cite web | url =https://www.20min.ch/ro/news/romandie/story/le-financement-du-pont-de-la-Poya-assure-15585123?httpredirect | title=le financement du pont de la Poya assuré | publisher=20 Minutes|date=10 July 2009 | accessdate=31 October 2018}}</ref> *[[Swissmill Tower]] completed in 2016<ref>{{cite web|url=https://www.watson.ch/Wirtschaft/Schweiz/905205405-Dubai-und-Schanghai-k%C3%B6nnen-einpacken--In-Z%C3%BCrich-steht-der-h%C3%B6chste-Kornspeicher-der-Welt-%F0%9F%8D%9E-Mehl-f%C3%BCr-JEDES-DRITTE-Brot-der-Schweiz|title=Dubai und Schanghai können einpacken: In Zürich steht der höchste Kornspeicher der Welt|publisher=Watson|accessdate=19 May 2016}}</ref> *[[Gotthard Base Tunnel|Gotthard Base Tunnel (Sedrun Section)]] completed in 2016<ref>{{cite web|url=https://www.newcivilengineer.com/latest/between-a-rock-and-a-hard-place/8624174.article|title=Between A Rock And A Hard Place|publisher=New Civil Engineer|date=27 January 2011|accessdate=31 October 2018}}</ref> *[[Nant de Drance Hydropower Plant]], Finhaut, completed in 2018<ref>{{cite web | url =http://www.engineersjournal.ie/2018/03/20/nant-de-drance-hydropower-scheme-brief-overview-civil-works/ | title=The Nant de Drance Hydropower Scheme – brief overview of the civil works|date=20 March 2018|publisher=Engineers' Journal|accessdate=31 October 2018}}</ref> *[[Koralm Tunnel]], Austria, due to complete in 2026<ref name=":3" /> *[[Gotthard Road Tunnel]], main lot north, second tube, Switzerland, due to complete in 2027<ref name=":3" /> *[[Swiss National Science Foundation]] Office in [[Bern]], due to complete in 2027<ref>{{cite web |url=https://www.fuw.ch/implenia-gewinnt-auftraege-aus-der-schweiz-und-deutschland-680051432540 |title=Hochbau: Implenia gewinnt Aufträge aus der Schweiz und Deutschland |website=Finanz und Wirtschaft |date=2 December 2024 |language=de |accessdate=16 September 2025}}</ref> *Line C of [[Toulouse Metro]] in [[France]], due to complete in 2028<ref>{{cite web |last=Henry |first=Aude |url=https://france3-regions.franceinfo.fr/occitanie/haute-garonne/toulouse/metro-a-toulouse-la-construction-d-un-tunnel-et-4-stations-souterraines-confiee-a-un-consortium-franco-suisse-2713058.html |title=Métro à Toulouse : la construction d'un tunnel et 4 stations souterraines confiée à un consortium franco-suisse |website=[[France Info]] |date=13 February 2023 |language=fr |accessdate=16 September 2025}}</ref> *Medical Research and Training Centre for the [[University of Bern]], due to complete in 2028<ref>{{cite web |url=https://www.handelszeitung.ch/newsticker/implenia-erhalt-mehrere-neue-hochbau-auftrage-uber-400-mio-fr-846876-1 |title=Implenia erhält mehrere neue Hochbau-Aufträge über 400 Mio Fr. |website=[[Handelszeitung]] |date= 29 July 2025 |language=de |accessdate=16 September 2025}}</ref> *[[Semmering Base Tunnel]], lots 1.1 and 2.1 Gloggnitz and Fröschnitzgraben tunnel sections, Austria, due to complete in 2030<ref name=":3" /> *[[Grand Paris Express]], Lot T2C of Line 15 South in France, due to complete in 2030<ref>Peter Hummel: ''Implenia untergräbt Bauhierarchie''. In: [[St. Galler Tagblatt]] (in German), p. 9, 30 January 2019, retrieved 10 January 2023.</ref> *[[Brenner Base Tunnel]], Austria, due to complete in 2032<ref name=":3" /> *[[Mont d'Ambin Base Tunnel|Mont-Cenis Base Tunnel]] between [[Lyon]] in France and [[Turin]] in Italy, due to be completed by 2032<ref name=":3" /><ref>''Tunnel-Auftrag für Implenia in Frankreich''. In: Blick, p. 5, 10 July 2021, retrieved 10 January 2023.</ref> *E39 [[Rogfast|Rogfast Tunnel]] in Norway, due to complete in 2032<ref>{{cite web |last=Kajastie |first=Nia |url=https://www.geplus.co.uk/news/implenia-jv-wins-second-contract-on-norways-major-subsea-road-tunnel-scheme-04-06-2024/ |title=Implenia JV wins second contract on Norway’s major subsea road tunnel scheme |website=Ground Engineering |date=4 June 2024 |language=en |accessdate=16 September 2025}}</ref> *Lågen Bridge, new construction on the [[International E-road network|E6 motorway]] north of [[Lillehammer]], Norway, due to complete in 2033<ref>{{Cite web |date=2026-01-15 |title=Implenia gewinnt Aufträge in Deutschland und Norwegen |url=https://www.fuw.ch/implenia-neue-bruecken-und-tunnel-fuer-350-millionen-euro-737075499318 |access-date=2026-03-09 |website=Finanz und Wirtschaft |language=de}}</ref> *Expansion of [[Stammstrecke (Munich S-Bahn)|Stammstrecke of the Munich S-Bahn]] in Germany, due to complete in 2035<ref>{{cite web |last=Köhn |first=Rüdiger|url=https://www.faz.net/aktuell/wirtschaft/unternehmen/kritiker-sehen-in-muenchens-s-bahn-erweiterung-neues-stuttgart-21-15967863.html |title=Kritiker sehen in Münchens S-Bahn-Erweiterung neues Stuttgart 21 |website=[[Frankfurter Allgemeine Zeitung]] |date=2 January 2019 |language=de |accessdate=16 September 2025}}</ref> *Railway section for [[East Link (Sweden)|East Link]] in Sweden, due to complete in 2035<ref>{{cite web |last=Schmid |first=Stefan|url=https://www.baublatt.ch/baubranche/implenia-gewinnt-auftrag-ueber-130-millionen-fuer-bahnprojekt-in-schweden |title=Implenia gewinnt Auftrag über 130 Millionen für Bahnprojekt in Schweden |website=Baublatt |date= 14 March 2025 |language=de |accessdate=16 September 2025}}</ref> *Clinic 2 for the [[University Hospital of Basel]], due to complete in 2042<ref name=":6">{{Cite web |date=2025-08-22 |title=Implenia: Positives erstes Halbjahr mit erfreulicher Wachstumsdynamik |url=http://www.deal-magazin.com/news/2/145805/Implenia-Positives-erstes-Halbjahr-mit-erfreulicher-Wachstumsdynamik |access-date=2026-03-09 |website=Deal Magazin |language=de}}</ref> {{div-col-end}}
== Awards (selection) == * 2012: Real Estate Award in the category "Project Development" for the residential development "Schorenstadt"<ref name=":5">J. Keller: ''Stadthäuser ohne Parkplatz''. In: Neue Zürcher Zeitung (in German), No. 37, p. 63 14 February 2014, retrieved 10 January 2023.</ref> * 2014: "Tunneling Contractor of the Year" for Nant de Drance pumped storage power plant, which was selected as "Major Project of the Year" by the International Tunneling & Underground Space Association (ITA-AITES)<ref>''Implenia an International Tunnelling Awards in London''. In: AWP Finanznachrichten, No. 639, 8 December 2014, retrieved 10 January 2023.</ref> * 2019: "Prize for the development of a Swiss company in France" awarded by the France-Switzerland Chamber of Commerce and Industry (CCIFS)<ref>{{Cite web |title=Implenia AG: Implenia erhält Preis der Industrie- und Handelskammer Frankreich-Schweiz - Auszeichnung für den Beitrag zum bilateralen Ausbau der Handelsbeziehungen |url=https://www.finanznachrichten.de/nachrichten-2019-02/45992841-implenia-ag-implenia-erhaelt-preis-der-industrie-und-handelskammer-frankreich-schweiz-auszeichnung-fuer-den-beitrag-zum-bilateralen-ausbau-der-hande-353.htm |access-date=2023-01-10 |website=FinanzNachrichten.de |language=de}}</ref> * 2020: IR Magazine Awards – Europe 2020 / Best annual report (small cap) / Winner<ref>[https://events.irmagazine.com/euroawards/wp-content/uploads/sites/16/2020/09/Europe-Awards-20-Winners-and-nominees.pdf IR Magazine Awards – Europe 2020 Winners and nominees], in: IR Magazine, 2020</ref> * 2021: "Highest Reputation" by Deutschlandtest<ref>Jacobs, Thorsten (6 May 2021). ''[https://www.focus.de/magazin/archiv/studie-hoechste-reputation-der-gute-ruf_id_13244367.html "Studie „Höchste Reputation"Der gute Ruf"]'' . ''[[Focus (German magazine)|Focus]].'' Retrieved 10 January 2023.</ref> * 2022: Award in "Germany's Digital Pioneers" in the "Technology Reputation" category from the [[Frankfurter Allgemeine Zeitung|F.A.Z. Institute]]<ref>''"Deutschlands Digitale Vorreiter 2022"''. ''[[Frankfurter Allgemeine Zeitung]]''. Retrieved 2023-01-10.</ref> * 2022: Award "Digital Champion" by Deutschlandtest<ref>{{Cite web |date=2022-05-16 |title=Digitalisierung in Unternehmen |url=https://deutschlandtest.de/rankings/digitalisierung-unternehmen |access-date=2023-01-10 |website=Deutschlandtest |language=de}}</ref> * 2022: Award for "Most Innovative Companies" by Deutschlandtest<ref>{{Cite web |date=2022-05-09 |title=Firmen mit höchster Innovationskraft |url=https://deutschlandtest.de/rankings/firmen-mit-hoechster-innovationskraft |access-date=2023-01-10 |website=Deutschlandtest |language=de}}</ref>
== Controversies ==
'''Construction defects'''
Construction defects at the [[Letzigrund|Letzigrund Stadium]] in Zurich, which was built by Implenia and still being completed under great time pressure for the [[UEFA Euro 2008|2008 European Soccer Championships]], led to ten years of legal proceedings against the company. The starting point was cracks and defective weld seams on the steel girders, which Implenia denied as "scaremongering." However, the city of Zurich feared that the roof posed a danger to spectators and secured the roof with additional supports on the stands at its own expense. The proceedings were resolved in 2021 with a court settlement in which both parties agreed to mutually waive all outstanding claims.<ref>Stefan Hotz: ''Der Letzigrund-Streit mit Implenia ist beigelegt''. In: Neue Zürcher Zeitung (in German), p. 12, 15 April 2021, retrieved 10 January 2023.</ref><ref>Matthias Scharrer: ''Ein langer Stadionstreit ist beendet''. In: Aargauer Zeitung (in German), p. 25, 14 April 2021, retrieved 10 January 2023.</ref>
'''Payment delays and subcontractor bankruptcy'''
In 2019, Implenia started holding "supplier summits", which were intended to boost company profit margins by asking business partners to voluntarily pay rebates to Implenia.<ref name="auto1">{{Cite web |title=Ex-employees make serious accusations against construction giant Implenia |url=https://www.bluewin.ch/en/news/switzerland/ex-employees-make-serious-accusations-against-construction-giant-implenia-2744266.html |access-date=2026-03-21 |website=blue News |language=en}}</ref> In 2025, Temps Présent and Radio Télévision Suisse (RTS) investigated Implenia's payment delays and subcontractor bankruptcy.<ref name="auto">{{Cite web |date=2025-06-14 |title=Implenia, les drôles d'affaires du roi du béton {{!}} RTS |url=https://www.rts.ch/info/economie/2025/article/implenia-retards-de-paiement-et-pressions-sur-les-fournisseurs-devoiles-28913519.html |access-date=2026-03-21 |website=rts.ch |language=fr}}</ref> In response, in 2025, André Wyss, CEO of Implenia, said that Implenia's "procurement organization is well-structured, and we [Implenia] maintain long-term relationships with many suppliers, subcontractors, and partners."<ref name="auto"/>
'''SISAG'''
Implenia also owns SISAG, Côte d'Ivoire’s largest granite quarry. Sexual harassment and management dysfunctionality were reported in 2022.<ref name="auto"/>
== References == {{Reflist}}
==Sources== *{{cite book |last=Gray |first=Tony |title=The Road to Success: Alfred McAlpine 1935–1985 |publisher=Rainbird Publishing |year=1987}}
==External links== {{Commons category}} * [http://www.implenia.com Official website]
{{Portal|Companies}} {{Authority control}}
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