The best brand research and audit agencies

Most rebrands go wrong because they start with design instead of evidence. A brand audit shows how the brand is actually seen, where it’s inconsistent and what’s worth keeping. These five agencies run research that leads to decisions, from brand valuation and customer perception to audits of the website and product experience.

See the 5 agencies Updated 2026

Woman working at a desk in a bright office, with a BRAND poster pinned to the wall behind her

Quick list

#AgencyKnown forBest for
1Clay Global logoClay GlobalAudits of the brand across website and productTech companies whose brand problems show up in the experience
2Interbrand logoInterbrandBrand valuationLarge companies that need to put a value on the brand
3Prophet logoProphetBrand relevance research tied to growthLeadership teams linking brand to business strategy
4Siegel+Gale logoSiegel+GaleResearch on simplicity and clarityComplex companies that customers find hard to understand
5Monigle logoMonigleBrand experience research and auditsOrganizations with many locations and touchpoints
Clay Global logo

1. Clay Global

Location
San Francisco HQ, remote-first
Signature project
Brand, UX and accessibility audits for software companies

For a software company, the brand is judged in the product and on the website as much as in its logo. Clay’s research and audit work starts there: UX research, accessibility audits and reviews of how the brand holds up across marketing pages, onboarding and product screens. Because the same team can then fix what it finds in the identity, website and product, audits turn into action rather than a report that sits on a shelf.

Clients
Coinbase, Credit Karma, Stripe, Cisco, Phenom
How they work
UX research, accessibility audits and brand reviews, followed by brand, web and product work in the same team
Budget signal
Upper mid-market to enterprise
Skip if
You need consumer perception studies across many countries.

Last verified 2026

Interbrand logo

2. Interbrand

Location
New York, Cologne, London, Madrid
Signature project
Best Global Brands annual ranking

Interbrand is best known for putting a financial value on brands. Its annual Best Global Brands ranking estimates the value of the world’s most valuable brands, and the same valuation methods are available to companies that want to understand what their brand is worth and what drives that value. That makes it useful for leadership teams and boards that need to justify brand investment in financial terms.

Clients
Mattos Filho and large global brands; ask for references in your sector
How they work
Brand valuation, strategy, verbal and visual identity
Budget signal
Enterprise
Skip if
You’re a small or mid-sized company. The process is built for large organizations.

Last verified 2026

Prophet logo

3. Prophet

Location
San Francisco, with offices worldwide
Signature project
Brand Relevance Index

Prophet sits closer to management consulting than to a design studio. Its research looks at whether a brand is relevant to customers’ lives, not just whether they recognize it, and the firm publishes a regular Brand Relevance Index ranking the brands consumers find most indispensable. Brand-equity thinker David Aaker is part of the firm, and his frameworks shape how it links brand decisions to segments, portfolios and growth.

Clients
Ask for references in your sector
How they work
Research, brand strategy and growth consulting
Budget signal
Enterprise
Skip if
You want a design-led identity rather than a strategy and research program.

Last verified 2026

Siegel+Gale logo

4. Siegel+Gale

Location
New York
Signature project
World’s Simplest Brands study

Siegel+Gale has built its practice around one idea: simplicity. Founded in 1969 by Alan Siegel, a pioneer of plain language, the firm researches how simple or complicated customers find brands and their communications, and publishes a ranking of the world’s simplest brands. That research is a strong starting point for companies whose biggest brand problem is that customers don’t understand them.

Clients
GlobalFoundries
How they work
Research, brand strategy, verbal and visual identity, customer communications
Budget signal
Enterprise
Skip if
You want a playful, personality-led brand for a small consumer product.

Last verified 2026

Monigle logo

5. Monigle

Location
Denver and New York
Signature project
Humanizing Brand Experience research

Monigle’s research focuses on how people experience a brand, not just what they think of its logo. Its annual Humanizing Brand Experience study ranks how human health system brands feel to the people who use them, and the same approach is used to audit organizations with many locations, services and staff. The findings feed directly into brand architecture, identity and rollout programs.

Clients
Sutter Health, UNC Health, Prisma Health
How they work
Insights and research, strategy, architecture, identity and activation
Budget signal
Enterprise
Skip if
You’re a startup that needs quick customer interviews rather than a full research program.

Last verified 2026

What a brand audit should cover

Before you brief an agency

Be clear about the decision the research needs to support: a rebrand, a new architecture, a new market. Share existing data such as customer surveys, analytics and sales feedback. And agree up front who will act on the findings.

Frequently asked questions

What is a brand audit?

A structured review of how a brand is seen and how consistently it’s used, covering perception, visual and verbal identity, competitors and customer experience.

When should we do a brand audit?

Before a rebrand, after a merger, when entering a new market, or when results suggest the brand isn’t working.

How long does brand research take?

A focused audit can take three to six weeks. Large studies with customer research across several markets can take three months or more.

What’s the difference between brand research and market research?

Market research looks at the market and customers in general. Brand research looks at how your specific brand is perceived and what drives that perception.

Can we do a brand audit ourselves?

You can do a basic inventory internally. An outside agency adds objectivity, research methods and the confidence to point out problems teams have stopped seeing.