Department: Operations
Employment Type: Full Time
Location: Remote
Compensation: £45,000 - £52,000 / year
TWC services ltd has been providing specialist water hygiene and compliance services across the UK since 1992. Based in Bicester, the expert team supports clients across multiple sectors, helping organisations maintain safe water systems and meet regulatory standards. We are members of the Legionella Control Association, hold ISO9001 and Constructionline Gold accreditation.
Celnor Group is a UK-based environmental services group operating across the Testing, Inspection, Certification and Compliance (TICC) landscape. With a growing portfolio of specialist businesses, Celnor provides essential services that protect people, property and the environment.
While each business retains its own identity, culture and technical specialism, all are supported by a central group function that invests in people, systems and long-term sustainable growth.
Are you an experienced Business Development Manager with a strong background in the water hygiene, Legionella or water treatment industry?
TWC Services are looking for a commercially driven Business Development Manager to help grow our customer base, develop existing relationships and identify new opportunities across the water compliance sector.
This role would suit someone who already understands the water industry, can confidently speak with clients about their compliance requirements and has a proven ability to turn opportunities into long-term commercial relationships.
As Business Development Manager, you will take ownership of new business development while continuing to build strong relationships with existing and prospective customers.
You will:
This is not an entry level sales role. Previous experience within the water industry is essential.
We’re looking for someone who:
You’ll be joining a business where your contribution matters and where professionalism, integrity and teamwork are genuinely valued. As part of the wider Celnor Group, you’ll benefit from group-wide investment, shared expertise and opportunities to develop your career as the organisation continues to grow.
Celnor Group and its businesses manage recruitment directly. We do not require agency support for this role and will only engage with recruitment partners from our preferred supplier list where necessary.
We may use technology, including AI-enabled tools, to support parts of the recruitment process. AI is not used for candidate screening, scoring or hiring decisions. All hiring decisions are made by people, for people. Our recruitment systems are ISO 42001 accredited, reflecting our commitment to ethical, transparent and responsible use of technology.

Celnor is a group of complementary businesses offering a broad range of inspection, testing, certification and compliance (TICC) services to commercial clients across the UK.
Our member companies provide the data, consulting and insight our customers need to manage sustainable development and compliance with environmental and occupational regulations.