Which reviews count for a B2B firm: Google, Clutch, G2 or Trustpilot?

Most founder-led B2B firms have reviews scattered across three or four sites: a few on Google from years ago, a Clutch profile someone set up and forgot, perhaps a Trustpilot page a client found on their own. Then a review platform's sales team calls, and the question becomes which of these actually matters, and whether any of it is worth paying for.

It matters more than it did, because business buyers now check suppliers inside AI answers and look for review sites when they do. In G2's April 2026 survey of 1,076 software buyers, 45% said citations of software review sites were the most confidence-inspiring signal in an AI-generated answer, and when AI recommendations conflicted, 24% turned to peer reviews next. In TrustRadius's 2026 Buying Disconnect Report, 74% of 1,862 technology buyers said they use reviews to inform purchase decisions. Both surveys come from review companies and cover software buyers, so read them as a strong sign for software firms and a softer one for services.

The right answer depends on what you sell. This guide sets out which platform to put first, how buyers and AI assistants use each, how many reviews you need, how to handle a bad one, and the UK rules on fake reviews.

#Which review platform should a B2B firm use?

Put one platform first, chosen by what you sell and where your buyers already look. Add a second only once the first has a steady flow of recent reviews.

Software and SaaS. G2 is where software buyers compare products in a category. Capterra and TrustRadius are worth a consistent listing once G2 is active.

Agencies and consultancies. Clutch is built for service providers: its reviews describe a project and its outcome, which is what a buyer of services wants to read.

Professional services. Few buyers of legal, accounting or advisory work look for star ratings on a software-style platform. Google reviews matter where clients search locally. Beyond that, a ranking in Legal 500 or Chambers, or an entry on your professional body's register, does the job a review does elsewhere, as whether awards and accreditations make ChatGPT more likely to recommend you explains.

Recruitment. Google reviews from clients and candidates come first. Trustpilot suits businesses that can invite a large, steady stream of customers, which most specialist recruiters cannot.

#How do buyers and AI assistants use review sites?

As independent evidence. When an assistant is asked to recommend a supplier, it looks for sources other than the firm's own website that confirm what the firm does and how well it does it, and review sites are one of the few places where clients say that in public.

The citation data is clearest for G2. In Profound's 2025 analysis of 680 million citations, G2 made up 1.1% of all ChatGPT citations, level with Forbes. We have not seen a citation study we trust that measures Clutch, Capterra, Trustpilot or Google reviews on B2B questions, so treat their effect on AI answers as likely but unmeasured. The wider picture of which sources assistants cite for supplier questions is in which sources ChatGPT cites when a B2B buyer asks who to hire.

Buyers use reviews to check the assistant. G2's survey found 64% of software buyers met inaccurate AI recommendations often or very often, and TrustRadius found that 94% of buyers who used AI fact-checked it at least some of the time. A review profile that confirms your website, in a client's words, is what they find.

#How do Google, Clutch, G2 and Trustpilot compare?

Each suits a different kind of firm, and each has its own rules on how you may ask for reviews. The table compares the main options.

Google reviews. Google's Maps user contributed content policy bans offering incentives for a review, "such as payment, discounts, free of cost goods and/or services", and bans merchants who "selectively solicit positive reviews from customers". You may ask any client for an honest review, as long as you do not try to influence the rating or the contents.

Clutch. Clutch's research methodology says a client must log in via LinkedIn, Google or a company email address to leave a review, and that an editor checks every submission. It says reviews make up 50% of a firm's Ability to Deliver score and that reviews from the last two years carry the most weight.

G2, Capterra and TrustRadius. G2's community guidelines ban "collecting reviews by any method that segments out potentially negative reviews or exclusively targets positive reviews", ban reviews from your own employees and competitors, and label any review that was incentivised.

Trustpilot. Trustpilot requires fair, neutral invitations with no incentives, sent to every customer in the same way, which suits a firm with hundreds of clients better than one with thirty.

#What about Legal 500, Chambers and professional body listings?

They are proof rather than reviews, and for many professional services firms they carry more weight than any star rating. A Legal 500 or Chambers entry is compiled independently, not written by you or your clients; a professional body register confirms what you are allowed to do. Neither is something you can ask a client to write.

Make sure your entries match your website exactly, state them in text on your site, and use Google reviews to show what working with you is like. How AI assistants weigh this kind of recognition is covered in does ChatGPT trust press coverage more than your website.

#How many reviews is enough?

There is no single number, and we have seen no study that sets one for B2B services. Aim for enough recent, detailed reviews on your main platform that a buyer can see a pattern, and a steady flow so the newest is never old.

Recency matters to the platforms themselves. G2 does not accept reviews based on an experience more than two years old, "as B2B technology can change drastically in a relatively short amount of time", and Clutch gives reviews from the last two years the most weight. A profile whose newest review is three years old tells a careful buyer, and an assistant reading it, that the evidence has gone stale.

Detail matters more than count. For example, five reviews that each name the reviewer's role, the service and what changed tell a buyer more than thirty one-line ratings. You cannot script that detail; you get it by asking at the right moment, once there is a result to describe.

#Are fake or paid-for reviews illegal in the UK?

Yes. Since 6 April 2025, the Digital Markets, Competition and Consumers Act 2024 has listed several review practices as banned practices, unfair and illegal in all circumstances. The CMA's fake reviews guidance covers writing or commissioning fake reviews, commissioning incentivised reviews that hide the incentive, and publishing reviews or star ratings in a misleading way. The CMA and the courts can now fine traders up to 10% of worldwide turnover (CMA, December 2025).

Three points catch B2B firms out:

• Staff count as commissioning. The CMA says commissioning "could include a trader requesting a member of staff to write a review of the trader's product."
• Incentives are legal only if disclosed. The law allows an incentivised review if the incentive is made clear and the review reflects a genuine experience. Most platforms go further: Google bans incentives outright, and G2 labels the ones it allows.
• Selective publishing counts. Suppressing genuine negative reviews, or showing only the best ones as if they were typical, can be publishing reviews in a misleading way.

The Act is consumer protection law, so how far it reaches reviews read only by business buyers is a question for your own lawyer. In practice it makes little difference: Google, G2, Clutch and Trustpilot all ban fake reviews under their own rules, and a fake review that is found out costs a B2B firm more trust than it could ever have won.

#How should we handle a negative review?

Reply in public, calmly and within a couple of working days, then resolve the problem in private. A measured reply is read by every future buyer who sees the review, so write it for them.

#Step 1: Check whether it is genuine

Read it against your records. A review from a former employee or a competitor breaks the platforms' rules and can be flagged. A review you disagree with is still genuine: the CMA says a review is not fake just because the trader does not like it.

#Step 2: Reply in public

Thank the reviewer, acknowledge the point, correct any fact plainly, and offer to talk. Sign it with a name. Never disclose confidential details of the client's work in the reply.

#Step 3: Resolve it in private

Fix what can be fixed. Never make a refund or discount conditional on the review changing: the CMA lists offering a refund or gift card to change a negative review as commissioning a banned review.

#Step 4: Keep asking for reviews

The best answer to one bad review is a steady flow of genuine ones. A few critical reviews among many good ones look more believable than a row of perfect scores.

#What to do this month

1. List every platform where you have reviews, the number on each and the date of the newest.
2. Choose one platform to put first using the tables above, and update the profile so it describes the firm exactly as your website does.
3. List every client who finished a piece of work in the last year, not only the happiest, and plan to invite all of them in the same way.
4. Reply to every unanswered review, starting with the negative ones.
5. Remove any review written by staff, friends or anyone paid without disclosure, and write a short reviews policy the whole team follows.

#Frequently asked questions

#Is Trustpilot worth it for a B2B firm?

Only if you have enough clients to invite steadily. Trustpilot expects every customer to be invited in the same way, with no incentives, and it is built for volume. For most founder-led B2B firms, Google reviews and one sector platform such as G2 or Clutch come first.

#Are G2 reviews legitimate if G2 offers gift cards?

G2 says it occasionally offers incentives such as gift cards for honest reviews, never based on whether the opinion is positive or negative, and labels those reviews as incentivised. That disclosure is what UK law requires of incentivised reviews. Any incentive you offer yourself must follow G2's rules and be disclosed to G2.

#Is Clutch worth it for an agency or consultancy?

Usually, yes. It is the platform buyers of agency and consultancy services recognise, and its reviews describe real projects. Each review takes a client more time than a Google review, so ask at a natural milestone and expect a steady trickle rather than a rush.

#Can our staff, friends or partners review us?

No. The CMA treats asking a member of staff to write a review as commissioning it, G2 bars employees and competitors from reviewing, and the other platforms remove reviews from people with a close connection to the business. Ask clients who have used your service.

#Can we show reviews on our own website?

Yes, and you should, but show them fairly. Publishing only your best reviews, or leaving out negative ones as if they did not exist, can be misleading under the CMA's guidance. Link to the platform so buyers can see the whole profile, and keep each quote with its source and date. What else makes a buyer trust your site is covered in what makes a buyer trust our website enough to get in touch.

#How quickly do new reviews change what AI assistants say?

It depends on the assistant. Those that search the web live, such as ChatGPT search, Perplexity, Copilot and Google's AI features, can reflect new pages and reviews within weeks; answers drawn from a model's own memory change only when it is retrained, which takes months. Our dated example is ID-Pal: "UK buyer questions where AI names ID-Pal: none in May, two in August, four in September 2026."

Reviews are one part of the reputation buyers and AI assistants check before they call. If you want help deciding where to build yours and getting clients to write them, that is part of Reputation That Wins; a free Growth Review will show where you stand first.

#Sources