https://www.sonntag-bau.com/en/news/certificate-for-the-training-year-2025-nov-2025-s201238 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/sonntag-sustainability-report-2024-published-nov-2025-s201242 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/drill-head-naming-a-2-115-weickelsdorf-sept-2025-s201245 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/trainees-2025-lets-go-into-the-future-with-sonntag-s201261 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/b2run-company-run-in-koblenz-june-2025-s201296 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/trainees-2024-welcome-s201298 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/b2run-company-run-in-koblenz-june-2024-s201301 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/sonntag-voluntarily-increases-wages-salaries-and-training-compensation-until-an-agreement-is-reached-by-the-collective-bargaining-parties-may-2024-s201303 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/new-in-the-portfolio-horizontal-drilling-method-april-2024-s201307 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/charlotte-hermes-strengthens-management-of-the-sonntag-group-jan-2024-s201309 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/sonntag-bus-sept-2023-s201311 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/anniversary-celebration-90-years-sonntag-sept-2023-s201313 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/90-years-sonntag-laser-show-and-aftermovie-s209517 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/koblenz-new-drinking-water-pipeline-sept-2023-s201315 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/trainees-2023-welcome-s201317 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/new-workshop-hall-and-more-storage-space-in-doerth-jan-2023-s201319 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/sonntag-bau-celebrates-anniversary-sustainability-for-90-years-oct-2022-s201321 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/trainees-2022-s201323 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/office-extension-doerth-july-2022-s201326 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/robert-himmel-strengthens-management-of-the-sonntag-group-jan-2022-s201329 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/borehead-naming-in-hamburg-diebsteich-nov-2021-s201331 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/new-trainees-starting-august-1-2021-s201335 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/construction-site-dueren-renkerstrasse-dec-2020-s201340 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/new-trainees-welcome-aug-2020-s201350 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/mission-completed-zurich-gerstenstrasse-july-2020-s201359 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/microtunnelling-process-in-herne-june-2020-s201362 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/further-certification-in-the-field-of-occupational-safety-feb-2020-s201364 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/new-trainee-film-online-jan-2020-s201367 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/new-certification-in-the-field-of-occupational-safety-nov-2019-s201370 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/depth-collector-viersen-drill-head-naming-nov-2019-s201373 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/new-video-giant-pipe-mannheim-oct-2019-s201378 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/new-trainees-doerth-bingen-august-2019-s201382 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/coin-company-run-in-koblenz-june-2019-s201397 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/construction-site-mannheim-altrheindueker-october-2018-s201403 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/football-match-sonntag-ws-monnerjahn-august-2018-s201407 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/new-trainees-doerth-bingen-august-2018-s201410 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/construction-site-sinzig-bad-bodendorf-july-2018-s201414 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/construction-site-cologne-rhine-crossings-june-2018-s201417 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/construction-site-goslar-petersberg-may-2018-s201419 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/construction-site-zug-switzerland-drainage-north-circulago-march-2018-s201422 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/best-in-exam-in-the-road-construction-trade-feb-2018-s201426 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/new-branch-management-in-bingen-jan-2018-s201430 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/lecture-by-bernd-sonntag-at-the-night-of-technology-in-koblenz-nov-2017-s201433 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/recovery-drill-head-project-waldkraiburg-bavaria-s201439 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/85th-anniversary-of-sonntag-baugesellschaft-s201446 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/sonntag-at-trainee-fairs-s201436 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/presentation-of-the-masters-thesis-by-tobias-fischbach-s201452 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/coin-company-run-2016-runners-with-new-outfit-s201456 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/harmonious-work-in-the-neighboring-country-steyr-austria-s201472 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/new-certification-s201475 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/rheindueker-koeln-a-new-district-heating-tunnel-is-being-built-under-the-rhine-s201478 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/rheindueker-bingen-s201481 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/1-deployment-for-our-new-avn-2500-s201484 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/leadership-change-at-the-headquarters-in-doerth-s201487 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/best-in-exam-in-the-trade-of-concrete-reinforced-concrete-builder-s201489 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/80th-anniversary-of-the-sonntag-baugesellschaft-s201492 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/7th-nuremberg-information-and-experience-exchange-on-pipe-jacking-s201495 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/double-success-for-sonntag-bau-s201498 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/coin-company-run-june-2011-in-koblenz-s201501 2026-08-19 weekly 0.5 https://www.sonntag-bau.com/en/news/trainees-2017-doerth-bingen-s201443 2026-08-19 weekly 0.5