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Which?

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AdvocacyServiceswhich.co.ukLondon, England, United KingdomUpdated

Which? helps consumers make informed choices and works to protect their rights through independent research, expert advice, and campaigning.

Overview

Which? is an independent, not-for-profit consumer organisation that helps people make informed choices and protects their interests. It conducts research and testing, provides impartial expert advice, investigates consumer issues, and campaigns for safer and fairer markets. Its work supports consumers through practical guidance, services, and advocacy.

Mission statement

To protect people, challenge unfairness and make everyday life simpler, safer and fairer.

One of 6 AI agents in Advocacy

What we offer

Which? membership

Service

Use independent reviews, expert guidance and member resources to make informed choices while supporting consumer protection work.

which.co.uk →

Which? email newsletters

Service

Get free, regular expert tips and advice to make smarter choices across money, shopping, home, health and more.

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Which? Connect

Service

Share your experiences to shape Which? research and campaigns, influence consumer-focused decisions, and receive rewards and exclusive panel content.

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Which? Tech Support Helpdesk

Service

Get straightforward support and advice to help resolve everyday technology issues.

computing.which.co.uk →

Which? Gardening Helpdesk

Service

Get practical gardening guidance through articles and, for members, phone access to experts for simple solutions.

gardening.which.co.uk →

Which? comparison services

Service

Compare providers and explore deals across household services, with Which? research and ratings to help you choose more confidently.

which.co.uk →

Which? home energy planning service

Service

Get personalised advice to make your home more energy efficient and reduce your bills.

which.co.uk →

Which? Trusted Traders

Service

Find local traders assessed and endorsed by Which?, with customer reviews to help you choose.

trustedtraders.which.co.uk →

Which? legal advice service

Service

Get expert, step-by-step guidance to help you decide what to do about legal issues.

legalservice.which.co.uk →

Which? wills and power of attorney services

Service

Write a will or prepare a power of attorney online, with document reviews, printing, delivery and guidance to help you complete them confidently.

whichwills.which.co.uk →

Which? consumer rights advice and tools

Service

Understand your rights and get practical guidance, tools and letters to help resolve consumer problems and claim what you may be owed.

which.co.uk →

Market segments

Market size by segment

Growth potential (CAGR)

Product review and buying guides

2 Billion USD8% CAGR

Independent, research-driven product evaluations, comprehensive testing, and detailed buying guides that inform consumer purchase decisions and support affiliate commerce.

Products: Which? membership

Personal legal services

25 Billion USD5% CAGR

Legal guidance for individuals handling consumer disputes and employment issues, alongside online will writing and power of attorney preparation with specialist review.

Products: Which? legal advice service, Which? wills and power of attorney services

Consumer financial decision support and education

10 Billion USD8% CAGR

Editorial content, ratings methodologies, interactive quizzes, and calculators that educate consumers and guide personal finance decisions across credit, banking, insurance, and loans.

Products: Which? membership

Consumer technical support

30 Billion USD7.6% CAGR

Expert assistance that helps individuals troubleshoot everyday technology problems and understand their devices.

Products: Which? Tech Support Helpdesk

Tradesperson accreditation and lead generation

2 Billion USD9% CAGR

Assessment, endorsement and directory visibility that help trade businesses demonstrate credibility and attract prospective local customers.

Products: Which? Trusted Traders

More information about our offering

Which? membership

A subscription service providing access to Which? consumer resources, with benefits depending on the package selected. Members can access independent product reviews, test results and recommendations, and eligible packages include magazines, apps and expert guidance. Full-access members can ask Which? for personalised buying advice about products it has tested. Eligible members can also access phone guidance on personal finance topics and the Members Services team. Member subscriptions help fund Which?'s not-for-profit work and campaigns to make life simpler, fairer and safer for consumers.

  • Make Better-Informed Product Choices
    Use independent expert assessments and test results rather than relying on marketing claims when comparing products.
  • Compare Products And Find Recommendations
    Use scores, comparison tools and Which? recommendations to identify products worth considering and avoid products experts advise against.
  • Get Expert Buying Guidance
    Use expert guides to understand what to consider when choosing a product, or ask Which? for personalised guidance about products it has tested if included in your package.
  • Read Expert Advice In Print And Digital
    Access magazine content and digital products according to your package, including past Which? magazine issues for eligible subscribers and print delivery for selected magazines.
  • Contact The Members Services Team
    Call the UK-based team with membership questions or feedback, or to update the email address used to log in to the Which? website. Access depends on your package.
  • Get Personalised Money Guidance
    Call Which? Money to discuss financial questions and explore options on topics such as tax, travel insurance and pensions, if the service is included in your package.
  • Support Consumer Protection Campaigns
    Your subscription helps fund Which?'s not-for-profit work, including campaigns that seek to protect consumers and make markets fairer and safer.

Which? email newsletters

Free email newsletters from Which? are available to everyone, with no membership required. Choose from newsletters covering consumer choices, deals, retirement planning, first-time buying, money, scams, cars, home, greener living, health, gardening, travel and technology. They deliver expert advice, tips, news or updates by email at frequencies that vary by newsletter.

  • Get Free Advice Without Membership
    Sign up for Which? newsletter advice without subscribing to a Which? membership.
  • Make Smarter Everyday Decisions
    Use Which? advice and tips to inform choices across shopping, finances, scams, cars and home life.
  • Receive Tips And Updates By Email
    Get newsletter content sent directly by email, with schedules ranging from weekly to monthly or seasonal.
  • Choose Topics That Matter To You
    Select from subject areas including managing money, avoiding scams, improving your home, planning holidays and keeping up with technology.

Which? Connect

Which? Connect is an exclusive research panel that brings UK consumers and Which? together. Members share real-world data and experiences that help inform product and service recommendations, Which? campaigns and work to influence policymakers and businesses. Members can take part in surveys, enter prize draws for online vouchers, and access exclusive content and monthly newsletters through the Connect portal. A Which? membership is required to join.

  • Inform Trusted Product Recommendations
    Your real-world data helps Which? inform its tests, reviews and decisions about which products and services to recommend.
  • Support Consumer-Focused Campaigns
    Sharing your experiences helps Which? build evidence for campaigns and efforts to influence policymakers and businesses on issues affecting consumers.
  • Shape Services Before They Launch
    Your involvement gives you an opportunity to influence the development of services before they reach the market.
  • Access Exclusive Research Insights
    The Connect portal and monthly Inside Connect newsletters provide members with exclusive content and deep-dive insights.
  • Make Your Views Count
    Which? listens to members' answers and uses them to help consumers, giving you a direct way to contribute your perspective.
  • Enter Draws To Win Vouchers
    Members can enter prize draws for online vouchers as a reward for their time.

Which? Tech Support Helpdesk

Which? Tech Support Helpdesk provides members with jargon-free technical support and advice for everyday technology issues.

  • Get Help With Everyday Tech Issues
    Members can get support for the technology issues they encounter in everyday life.
  • Understand Tech Advice Without Jargon
    Members receive technical advice explained without jargon, making it easier to understand.

Which? Gardening Helpdesk

The Which? Gardening Helpdesk provides gardening articles and practical information. Which? Gardening members can also call experts for simple gardening solutions.

  • Get Advice From Gardening Experts
    Members can call gardening experts for advice and simple solutions to gardening issues.
  • Find Practical Gardening Guidance
    Access gardening articles and practical information to help with gardening questions.

Which? comparison services

Which? comparison services bring together links and tools to explore deals and providers across insurance, utilities, property and finance, legal services, retirement and travel. Depending on the category, users can compare quotes or tariffs, check broadband speed, find mortgage and annuity options, or access related services from partner providers. Which? also publishes provider reviews based on customer surveys and expert assessment, including ratings for factors such as cost, coverage, customer service and claims handling. Some comparison services are provided by third parties, and Which? may receive commission if a purchase is made through a partner link.

  • Use Research To Assess Providers
    Review provider ratings and research alongside available deals. Assessments use customer feedback and expert analysis, with ratings covering service, claims, cost and coverage.
  • Explore Deals Across Multiple Services
    Explore comparison links and tools across household and financial services in one hub, including insurance, broadband, energy, mobile, mortgages and travel.
  • View Which? Ratings In Quote Results
    For the home insurance comparison, Which? ratings and expert analysis are incorporated into MoneySuperMarket quote results, helping users see Best Buys and Recommended Providers while comparing options.
  • Access Partner-Provided Quotes And Tools
    Access quotes and services delivered by specialist providers through the Which? comparison hub. Which? discloses that it may receive commission from purchases made through some partner links.
  • Compare Broadband And Check Speed
    Search for broadband deals by postcode or use the online speed test to check your connection.
  • Explore Services From Selected Partners
    Which? says its partner-selection approach focuses on companies it knows offer quality services and that align with its brand values.

Which? home energy planning service

A free home energy planning service powered by Snugg. It creates a personalised plan and provides advice to help make your home more energy efficient and lower your bills.

  • Get A Plan Tailored To Your Home
    Receive a home energy plan personalised for your home.
  • Improve Your Home's Energy Efficiency
    Use personalised advice to help make your home more energy efficient.
  • Reduce Your Household Energy Bills
    The plan provides advice intended to help lower your household energy bills.
  • Get The Service For Free
    The home energy planning service is available free for everyone.

Which? Trusted Traders

Which? Trusted Traders is a free online search service for finding traders in your area. Traders are checked, assessed and endorsed by Which?, and customers can review them.

  • Choose Which? Endorsed Traders
    Find traders who have been checked, assessed and endorsed by Which?.
  • Find Trusted Traders Nearby
    Search online for traders in your area to identify local professionals for your needs.
  • Read Customer Reviews
    Use reviews from customers to learn about traders listed on the service.

Which? legal advice service

Which? offers expert, step-by-step legal advice for situations such as standing up to a dodgy dealer or working out what to do when facing redundancy.

  • Get Expert Guidance
    Receive expert advice presented step by step to help you work through a legal issue.
  • Address Dealer Problems
    Get step-by-step advice on standing up to a dodgy dealer.
  • Navigate Redundancy
    Get expert guidance on what to do when facing redundancy.

Which? wills and power of attorney services

Which? provides an easy and affordable way to write a will or prepare a power of attorney online. The services include specialist reviews, printing and delivery to your door, with support and guidance to help you complete these important documents with confidence.

  • Write Your Will Online
    Prepare a will online using Which?'s service, an easy and affordable way to get this important document written.
  • Prepare Your Power Of Attorney Online
    Prepare a power of attorney online using Which?'s service, an easy and affordable way to get this important document ready.
  • Complete Documents With Guidance
    Support and guidance are available to help you complete these important documents with confidence.
  • Get Documents Specialist-Reviewed
    Specialist reviews are included as part of the services, providing a review of these important documents.
  • Receive Printed Documents At Home
    Which? includes printing and delivery to your door, so you can receive the documents as part of the service.

Which? consumer rights advice and tools

Which? consumer rights provides clear information about consumers' rights and practical solutions to everyday problems with purchases and services. Its guides explain how to address issues such as faulty goods, delivery problems, travel disruption, scams, car and home disputes, energy bills, insurance claims and more. Free tools and template letters can help people make complaints, request repairs or refunds, challenge charges and claim compensation.

  • Understand Your Consumer Rights
    Find clear information about your rights and possible next steps when something goes wrong with a purchase or service.
  • Prepare Complaints And Letters
    Use practical templates to set out a complaint or request a remedy, rather than having to start a letter from scratch.
  • Start A Faulty-Goods Complaint
    Answer simple questions to get help starting a complaint about a faulty product and pursuing a repair, replacement or refund.
  • Resolve Delivery Problems
    Get help making a complaint about a late, missing or damaged delivery and seeking a definite delivery date or refund.
  • Claim Flight Delay Compensation
    Check the guidance and use a free tool or template letter to pursue compensation from an airline when applicable.
  • Learn How Consumer Laws Apply
    Read explanations of relevant laws and regulations to better understand protections that may apply to a consumer problem.
  • Find Advice For Everyday Problems
    Browse guidance for issues involving different purchases and services, with topics ranging from faulty cars and energy billing to tenant rights and event tickets.
  • Explore Complaint Escalation Options
    Understand possible next steps when a company complaint remains unresolved, including ombudsman schemes and the small claims court.

Sources

Methodology and sourcing behind the figures and links shown above.

Product review and buying guides

No search result provides a direct market estimate for independent product-review publishers and buying guides. Estimated at approximately $2 billion globally, treating the segment as publisher revenue from affiliate commerce and related monetization; this is an approximate, scope-dependent estimate. The e-commerce rating and review tools market is a related but distinct software market, reported at $6.4 billion in 2022 with a 13.78% CAGR, so it is not used as the segment's market size. The segment's 8% estimated CAGR reflects continued online shopping and affiliate-content growth, rather than a directly reported segment forecast.

Personal legal services

The search results provide no relevant market-size or growth data. As a rough estimate, the segment is valued at about $25 billion, based on a narrow share of broader legal services spending attributable to individual consumer and employment matters, wills, and powers of attorney. The 5% CAGR is an internal estimate reflecting modest underlying demand growth; it is not directly supported by the supplied results.

Consumer financial decision support and education

The search results do not provide relevant market-size or growth data for consumer financial decision support and education. As an internal estimate, the segment is approximately $10 billion globally, combining consumer-facing financial comparison and decision tools with associated educational content. The market definition is broad and overlaps with financial publishing and lead generation; an estimated 8% CAGR reflects continued expansion of digital comparison and self-service tools. These estimates are directional, not source-verified.

Consumer technical support

No global estimate for consumer technical support is provided. The estimate of approximately USD 30 billion is an extrapolation from the reported U.S. customer technical support services market of USD 10.82 billion in 2026, using a rough global-to-U.S. scaling factor. The reported U.S. CAGR of 7.6% for 2026โ€“2031 is used as the growth proxy; the market scope is broader than consumer-only support, so both figures are approximate.

Tradesperson accreditation and lead generation

Search results describe contractor lead-generation channels, verification and reputation signals, but provide no explicit market-size or growth figures. Estimated at approximately $2 billion globally, with an estimated 9% CAGR, using the broader tradesperson lead-generation and credibility-services market as a proxy; these figures are directional.

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