Our clients come from the real estate and construction industry, the public sector, the industrial sector, and the church. They all fulfill their duty to prevent or mitigate health hazards arising from microbiologically or chemically contaminated drinking water.They all fulfill their legal obligations. The obligation to investigate Legionella according to the Drinking Water Ordinance, the duty of care in accordance with § 823 of the German Civil Code (BGB), or the duty of care as an employer according to the Occupational Health and Safety Act and the Operational Safety Act. They all act responsibly. In the year 2023 we hold 12,500 drinking water installations under contract for legionella testing.
We enjoy sampling complete inventories of inspection-required facilities. Due to our standardized and systematic approach, this is advantageous for many facility operators as they only need to adapt to one “system.” For us, it is worthwhile to capture relevant inventory data through on-site inspections only if the sampling contract reaches a certain sample volume. As a result, we rarely work for amateur landlords and smaller companies. We generally decline individual orders.
Legionella project 2015
CBRE has been client since 2015, we are preferred supplier since 2017.
contract with Charlotte
Framework agreement with Charlotte since 2012, 70 TWA.
Deutscher Bundestag truts WATERcontrol
Deutscher Bundestag has been client since 2013. We won 3 tenders.
Covivio with 17.500 rental units awards contract
assignment for legionella testing in entire housing stock in 2021.
Dawonia is biggest customer.
Bidding in 2019 won over 9.000 samples per year .
Kleefeld-Buchholz
First sample taken for Kleefeld-Buchholz on April 12th, 2012.
Wohnbau Lemgo
Wohnbau Lemgo was first customer from OWL.
HWS
HWS, client since 2013, consents to photo session on their premises in Berlin.
Robert Bosch Wohnen
Robert Bosch Wohnen was first client from Baden-Württemberg.
Familienheim Pforzheim
Familienheim Pforzheim is client since 2023. 100 TWA
GWG Gruppe
Framework agreement with GWG group in 2022, pilot 2019.
Gartenstadt Hamburg
Gartenstadt Hamburg is customer from the very beginning in 2012.
KSG
KSG carries out legionella testing with us in all residential buildings.
WSB
WSB Bayern is second biggest bavarian customer.
Wohn+Stadtbau
Wohn+Stadtbau Münster is biggest municipal client.
Maior Domus
In 2016, Maior Domus becomes the first property management customer from Berlin.
DeWAG-Fonds
Framework agreement with DeWAG for many nationwide managed funds.
bwv is double client.
bwv conducts legionella testing with us since 2019. 76 TWA
JCI
JCI has been client since 2014.
Property manager from Hannover
The property manager from Hannover has been working with us since 2018.
G&H Minden
G&H Minden works with us since 2019.
Erzbistum Köln
We have had a framework agreement with the Archdiocese of Cologne since 2013 for a partial portfolio.
LH München
Drinking water project for State capital of Munich from 2013 to 2015.
ZBI
ZBI is latest client, legionella testing has not been carried out yet.
Sahle
Sahle Wohnen was at the beginning of 2013 first major customer.
TRV-framework agreement
TRV entered into a framework agreement with us in 2016. Volume: 30 TWA
EVM
EVM is client since 2023.
Ludwigsfelde
Märkische Heimat has been a customer since 2019.
Erzbistum Hamburg
The Archdiocese of Hamburg is having properties on Föhr and Sylt sampled.
vhw
Sampling of senior homes has been conducted since 2019 for vhw (housing association).
Sozialbau
Sozialbau Kempten has been conducting the sampling of their entire portfolio with us since 2019.
BGW
BGW has been having over 300 TWA sampled by us since 2016.
Gartenstadt Luginsland
Gartenstadt Luginsland has been a customer since 2012.
Meyerdierks
Meyerdierks was the first property management customer in 2012.
Cisco Systems
The German Cisco locations have been sampled by us since 2020.
Muntebau
Munte works with us and the competition.
Rummelsberger
The installations at Rummelsberg are sampled annually.
SWD
SWD is client since 2013. We had a presence with them at ARGE Düsseldorf.
Schwelmer & Soziales
Schwelmer & Soziales is business partner since 2012.
EDEKA
Individual markets in Hamburg and Harburg are being sampled.
Stadtbau Pforzheim
Stadtbau Pforzheim has been conducting Legionella testing with us since 2022.
TAG Wohnen
TAG Wohnen has us sample partial portfolios.
Gartenstadt Karlsruhe
Gartenstadt Karlsruhe became our first customer in Baden-Württemberg in 2012.
TWG
TWG is a new customer since mid-2023, and the contract is currently being executed.
VBV
VBV allowed us to conduct the first photo session in their portfolio in 2013.
Vonovia
In 2014, Vonovia entrusted us with the sampling of 800 TWA after an M&A action.
WBG Solidarität
WBG Solidarität is customer since 2015.
wework
We sample all wework offices in Germany.
Wiederaufbau eG
Wiederaufbau was the largest housing industry customer in 2013.
WOGE Saar
The only customer from Saarland.
Wohnbau Wernau
Wohnbau Wernau gave a lecture in 2016 about their cooperation with us.
RKS
Sampling of gas stations for RKS (company name) has been conducted since 2019.
ASW
ASW (company name) has been entrusting us with the sampling of their entire portfolio since 2013.
Aufbaugemeinschaft Espelkamp
Aufbaugemeinschaft Espelkamp is client since 2019.
B&S Bünde
B&S Bünde, our customer since 2016, ditched competitor for breach of contract.
Baum Gruppe
The Baum group from Hannover has been a customer since 2013.
Berliner Häuser
Berliner Häuser has been a long-standing customer in Berlin.
BG Esslingen
G Esslingen conducts Legionella testing with us.
Neues Heim
NNeues Heim was one of the first customers from Stuttgart.
Bietigheimer Wohnbau
The Bietigheimer company conducts all Legionella tests with us.
Birkenfeld eG
Birkenfeld eG is our smallest customer.
Bruhn Immobilien
Bruhn Immobilien has entrusted us with Legionella testing since 2015.
Bau- und Heimstättenverein
Bau- und Heimstättenverein Stuttgart has been customer since 2012.
Bauverein Kassel
Bauverein zu Kassel has been having sampling done by us since 2012.