WholeSum

Turn messy text into trustworthy insights

Statistically robust analysis of open-ended surveys, reviews, social comments and more. Full auditability. AI hallucination protection. Scalable with your data volumes.

AI Data Analysis Process

Trusted by research leaders and data science teams

Barclays
Notts Business School
Imperia
Female Founders Rise
Link Consumer
Maternal Mental Health Alliance
The Parent Gap

How it works

Three simple steps to unlock your insights

Upload Data Interface
1

Upload Data

Import and validate your Excel or csv file in seconds. Pick which text fields you want to analyse.

AI Processing Interface
2

Analyse

Our statistical pipeline processes your data using large language models and machine learning to uncover, interpret and quantify themes.

Insights Dashboard
3

Get Insights

Receive themes, sentiment analysis, and curated quotes with full confidence scores. Filter visualisations by segment.

Why use WholeSum

WholeSum is a new kind of analysis engine

Hallucination & Error Protection

LLMs make things up and miscount, even with prompt fine-tuning. Our hybrid pipelines - which combine the best of AI, symbolic reasoning and statistical models - protect from this.

Auditable & Reproducible

Uncover themes with traceability and confidence scores. In benchmarking, we outperform leading reasoning models on accuracy of theme allocation, and match manual analysis accuracy.

Built for Scale

Unlike LLMs, WholeSum's performance doesn't drop as data volume increases. And for large datasets, you can integrate WholeSum into your existing platforms via our API.

Trusted by experts in analysis and insights

See what our customers are saying

WholeSum MVP
Emmie Faust

CEO of Female Founders Rise

"WholeSum turned 63,000 words of founder experiences into detailed, human summaries for us, for a submission to parliament. I needed the speed of AI but without the risk of errors, and WholeSum very much delivered."

Link Consumer
Susana Sanchez

Director, Link Consumer

"The analysis you provided was powerful. It enabled us to pull together a really compelling story for our client. We honestly believe we would not have gotten to the same place using more traditional methods of analysis, even with more time."

Praktiki
Matt Eisenstadt

CEO, Praktiki

"Emily and Adam at WholeSum made analysing my free-text survey responses and interview transcripts from doctors quick and easy, saving me half a day of manual work. The insights were clear, actionable, and far more reliable than typical LLM outputs. Highly recommend!"

Pandas
Sally Bunkham

Communications Director, PANDAS

"Your analysis has helped us ask questions and look at things in a new light, thanks to seeing our data in an easily digestible format. It’s uncovered trends we hadn’t noticed before."

About us

WholeSum's founders bring over 20 years' combined experience across market research and academic research, with world-leading expertise in data science and statistical inference.

For too long, organisations have settled for glorified word clouds, crude sentiment tracking or unreliable AI summaries. We're on a mission to change that.

We want to build a world where audience insights are led by what matters, not what can be easily analysed.

Frequently asked questions

Check these out for quick facts about WholeSum

Most AI tools rely on prompt engineering, retrieval-augmented generation, or model fine-tuning, all of which still risk numerical errors and fabricated quotes. WholeSum instead integrates large language models and algorithmic natural language within a statistical framework to ensure consistency and reproducibility at scale.

WholeSum’s hybrid AI approach consistently outperforms leading reasoning models such as GPT-5 and Gemini 2.5 Pro on theme allocation benchmarks, while also delivering substantially higher accuracy than embedding-based classification methods.

Because WholeSum uses AI for specific tasks within a larger framework that uses statistical methods and algorithmic natural language, we avoid using language models – and the hallucination risk they create – to generate final numbers and quotes. Instead, we retrieve the ground truth values at the final step, ensuring all numbers add up and quotes match the original source.

Yes, our statistical approach means that you can match themes and confidence scores back to original responses, making it possible to combine qualitative and quantitative insights at scale. Feel free to get in touch to discuss these advanced analysis options.

Yes. Analysis is performed with local algorithms as well as enterprise language model APIs using data encryption at rest and in transit, with no training performed on the data.

We use a mix of large language models, algorithmic natural language, machine learning and statistical models to provide flexible, rich and reliable outputs and insights.

We design each step so that outputs can be reused in subsequent analysis. You can download structured matrices to cross-analyse with wider data and we're working on API endpoints that can be incorporated into dashboards, for example.

We currently support CSV, XLS and XLSX on our self-serve platform.

See what we can unlock for you

Whether it's deeper insights, cost efficiency or time saved, we'll help you give your valuable qualitative data the analysis it deserves.

WholeSum

Turn messy text data into trustworthy insights with AI-powered qualitative analysis.

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WholeSum: Turn text into trustworthy insights