Customer Data Cleansing · Cardiff
Customer Data Cleansing in Cardiff
Cleaning customer data for Cardiff organisations, with the part that determines whether it lasts. A cleanse that does not change how records are created is a snapshot — the duplicates return within a quarter, because the same three routes into the system are still producing them at the same rate.
Why this comes up
The problem
The database was deduplicated last year, it is full of duplicates again, and nobody changed how records get created.
What you get
What we deliver
- Duplicate sources identified — the routes and behaviours producing them
- Matching rules defined and tested, since aggressive matching merges real people
- Merges made reversible where possible, because some will be wrong
- Entry points corrected so the same duplicates are not recreated
- Ongoing detection running rather than a periodic manual exercise
- Contact validity addressed alongside duplication, as both degrade continuously
Want this scoped for your business in Cardiff?
Thirty minutes, no charge, no sales script. You leave with a written summary of what customer data cleansing would actually involve — whether or not you use us.
Working in Cardiff
Wales
Cardiff has a significant broadcast and media sector alongside a large public-sector presence, and Welsh-language provision is a genuine requirement on public-facing work here rather than a nice-to-have.
Public sector and broadcast work is common, and bilingual provision is usually a requirement rather than an option.
Sectors we work with in Cardiff
- Media & Broadcasting
- Financial Services
- Public Sector
- Higher Education
- Sport
What we work with
Technologies and platforms
- SQL
- Python
- Salesforce
- HubSpot
Who we work with
Industries we serve
- Retail
- Financial services
- Professional services
- Charities
- SaaS businesses
Why us
Why Cardiff businesses choose Asionis
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise
How we work
- Step 1
Free consultation
A 30-minute call to understand the problem. You keep the written summary either way.
- Step 2
Proposal
Scope, timeline and a fixed price, in writing, before anything starts.
- Step 3
Build
Short cycles with regular check-ins, so you see progress rather than hear about it.
- Step 4
Launch and support
We handle the go-live and stay available afterwards.
Other services in Cardiff
Looking for the full picture? See our Customer Data Cleansing services, everything we do in Cardiff or browse everything we do.
Customer Data Cleansing in Cardiff — common questions
- Why do duplicates come back?
- Because the sources are unchanged. A form that does not check for an existing record, an import that matches on nothing, and a sales team creating rather than searching will reproduce the same problem at the same rate as soon as the cleanse finishes.
- How aggressive should matching be?
- Conservative, with review for uncertain cases. Two people at one address with similar names may be a duplicate or a household, and merging them combines two customers into one — which is harder to undo than leaving a duplicate in place.
- Should merges be reversible?
- Where the system allows it, absolutely. Some merges will be wrong, and the difference between an easily corrected mistake and a permanent one is whether the original records were retained before they were combined.
- What about data that is simply out of date?
- It needs a separate approach. Deduplication does not fix an address someone moved from three years ago, and contact data degrades continuously — so validation and a refresh mechanism matter as much as removing duplicates.
- Do you work with businesses across Cardiff?
- Yes. We are based in Leicester, United Kingdom and work with clients throughout Wales, including Cardiff and the surrounding Cardiff area. Most collaboration happens remotely, and we travel for kick-offs and key milestones.
- What kind of Cardiff businesses do you usually work with?
- Public sector and broadcast work is common, and bilingual provision is usually a requirement rather than an option. Beyond that we work across Media & Broadcasting, Financial Services, Public Sector, Higher Education and Sport.
- Do you cover the areas around Cardiff?
- Yes — we work throughout Wales, including Bristol, Swansea. Cardiff is an urban area of roughly 490,000+, and we take on work across the wider Cardiff region rather than the city boundary alone.
Talk to us about Customer Data Cleansing in Cardiff
A 30-minute call with someone who would actually work on it. No sales script, no obligation.
- Projects typically launched within 4–8 weeks
- No long-term contracts required
- All team members UK-based
- Dedicated account manager and development team
- Transparent reporting with monthly performance metrics
- Scalable from startup to enterprise