Data Services Built
for Real Businesses

From one-off emergency cleanups to ongoing data governance — we tailor every engagement to your exact situation, tools and budget.

Get a Free Audit Browse Services ↓
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Confidential NDA available on request
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Change Log Full audit trail on every project
Fast Typical turnaround 24–72 hours
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Transparent Fixed quotes, no surprise charges
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Iterative Revisions included until you're satisfied

Everything Your Data Needs

Each service is delivered by a dedicated specialist, not a one-size-fits-all script.

Data Cleaning

Most Popular

We systematically identify and correct errors, inconsistencies and gaps across your dataset. Covers duplicate removal, case standardisation, date format normalisation, whitespace stripping, and missing value imputation.

  • Works with Excel, CSV, Google Sheets, SQL databases, JSON & more
  • Handles datasets from 100 to 10 million+ rows
  • Full before/after comparison delivered with every project
  • GDPR & data privacy compliant process

Data Validation

Pre-Audit Ready

Rule-based and logic-driven checks that verify your data meets defined business, compliance or technical standards — before it enters any downstream system, report or decision.

  • Custom validation rules written to your business logic
  • Cross-field and cross-table relationship checks
  • Regex pattern matching for IDs, phone numbers, emails
  • Compliance checks for finance, health & HR data

Data Enrichment

We supplement your existing records with verified information from trusted external sources — turning thin, incomplete data into rich, actionable assets your team can actually use.

  • Append missing phone numbers, emails, addresses
  • Industry classification and company size data
  • Geocoding — convert addresses to coordinates
  • Demographic and firmographic data appending

Data Migration

Technical

We plan and execute safe, lossless data movement between systems, platforms and formats — whether you\'re moving from a legacy database to the cloud, or consolidating multiple sources into one.

  • Schema mapping and data transformation pipelines
  • Rollback plan included as standard
  • Post-migration validation and reconciliation report
  • Supports MySQL, PostgreSQL, MongoDB, Airtable, Salesforce & more

Reporting & Dashboards

High Demand

We transform your clean data into clear, interactive dashboards and scheduled reports so the right people see the right numbers — without needing to dig through spreadsheets.

  • Looker Studio (Data Studio), Power BI, Tableau, Excel dashboards
  • Automated weekly/monthly report delivery
  • KPI frameworks aligned to your business goals
  • Training session included so your team is self-sufficient

Ongoing Maintenance

Retainer

A scheduled, recurring data health service that keeps your databases clean, consistent and trustworthy month after month — without you having to think about it.

  • Monthly or quarterly cleaning cycles
  • Proactive anomaly and drift detection
  • Data quality scorecards and trend reports
  • Priority response for urgent data issues

From Messy to Trusted in Four Steps

We've refined this process across 500+ projects. It works.

01

Discovery Call

Free, no commitment

We start with a free 30-minute call to understand your data landscape — what tools you use, what the data looks like, and what problems it's causing your business.

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02

Data Audit

Audit report provided

You share a sample (or we work under NDA with the full set). We map every quality issue: duplicates, blanks, format errors, outliers, inconsistencies and relationship breaks.

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03

Cleaning & Delivery

Full change log included

We do the work. Every change is logged in a detailed change record. You receive the clean file in your preferred format — plus a summary of exactly what was fixed.

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04

Review & Handover

Revisions included

We walk you through the results, answer every question, and make any revisions. We also share recommendations to prevent the same issues recurring.

Us vs Doing It Yourself

We're not here to oversell. Here's an honest comparison.

What You Get With Chui Data DIY / In-house
Turnaround time 24–72 hours Days to weeks
Specialist expertise 8+ years data experience Depends on team
Change log & documentation Included on every project Often skipped
Scalability Handles 100 to 10M+ rows Limited by staff hours
Methodology Proven, repeatable process Ad hoc, inconsistent
Cost Predictable fixed price Hidden: staff time, errors, rework
Post-delivery support Revisions included None
Privacy & confidentiality NDA + secure handling Internal only

Common Questions

Can't find an answer? Ask us directly →

500+Projects completed
98%Client satisfaction
We accept files via Google Drive (shared folder), WeTransfer, or encrypted email attachment. For sensitive data, we sign an NDA before you share anything. We never store your data beyond project completion.
Excel (.xlsx, .xls), CSV, Google Sheets, JSON, SQL database exports (MySQL, PostgreSQL), and plain text files. If you have something different, just ask — we've handled many edge cases.
Most data cleaning projects are delivered within 24–72 hours of receiving the data. Large datasets or complex migrations may take longer — we always give you a clear timeline upfront before starting.
Yes. Send us a small sample (50–100 rows) and we'll identify the types of issues present and give you an honest assessment — with no obligation to proceed.
We quote based on dataset size, complexity and the type of service. We always provide a fixed-price quote before starting — you'll never receive a surprise invoice.
Yes. We follow data handling best practices aligned with GDPR principles. We can sign an NDA, and we delete all client data from our systems once a project is delivered and signed off.

Not Sure Which Service You Need?

Describe your data challenge and we\'ll recommend the right approach — free, with no commitment required.