Experienced Business Development Manager (Water Hygiene)
Confirmed on the employer's own hiring board on Nov 5, 2026. First seen by Alion on Sep 17, 2026. Celnor Group scores A on the Alion truth index.
Business Development Manager - Water
TWC Services
Who we are
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.
Part of the Celnor Group
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.
Job details
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.
What you’ll be doing
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:
- Identify and develop new business opportunities across the water hygiene, Legionella, water treatment and compliance market.
- Build relationships with facilities managers, estates teams, property professionals, contractors and other key decision-makers.
- Generate and manage your own sales pipeline from initial contact through to contract award.
- Attend client meetings, site visits and networking opportunities.
- Understand customer requirements and work with operational teams to develop suitable solutions.
- Prepare proposals, quotations and commercial presentations.
- Develop existing accounts and identify opportunities for additional services.
- Maintain accurate records of opportunities, activity and pipeline progression.
- Work closely with internal operational and technical teams to ensure a smooth handover of new business.
- Keep up to date with market trends, competitor activity and opportunities within the water compliance sector.
- Represent TWC professionally and build long-term client partnerships.
Who you are
This is not an entry level sales role. Previous experience within the water industry is essential.
We’re looking for someone who:
- Has previous business development, account management or sales experience within the water industry.
- Has a strong understanding of water hygiene, Legionella compliance, water treatment or associated services.
- Understands the commercial environment surrounding services such as Legionella risk assessments, water hygiene monitoring, remedial works, sampling and related compliance services.
- Has a proven track record of generating new business and developing accounts.
- Is confident dealing with clients at different levels, from operational contacts through to senior decision-makers.
- Can manage a sales pipeline independently and maintain momentum throughout the sales process.
- Is commercially aware and comfortable discussing pricing, proposals and contract opportunities.
- Has strong communication, negotiation and relationship-building skills.
- Is proactive, organised and comfortable working autonomously.
- Holds a full UK driving licence and is happy to travel as required.
Join us
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.
Benefits
- Company Car, fuel card and personal use allowed.
- 20 days of annual leave including bank holidays.
- Employee Assistance Programme offering confidential support whenever you need.
- Fully funded training and development, supporting you to progress into new roles.
.
Important information
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.