What to Look for in a Translation Agency: A No-Nonsense Checklist

Choosing the right translation agency is one of those decisions that's easy to rush and hard to undo. Whether you're localising a website, a marketing campaign or ongoing content, the agency you work with will have a direct impact on how your brand comes across in every new market.

There's no shortage of translation services out there, which makes shortlisting feel overwhelming. So, here's a straightforward checklist of green flags to look for… and a few things worth questioning.

The checklist

• They ask about your brand before they quote

• They use native speakers in your target market

• They have experience in your sector

• They offer a clear, structured briefing process

• They're transparent about who actually does the translating

• They have a quality assurance process – and can tell you what it is

• They understand the difference between translation and localisation

• They ask for your tone of voice guidelines

• They can provide references or case studies

• They're clear on turnaround times and what affects them

They ask about your brand before they quote

A translation agency that jumps straight to pricing without asking about your business, your audience or your goals is one to approach with caution. The best agencies want to understand who you are before they start working out how to represent you in another language. If the first question is "how many words?" rather than "tell us about your brand," that tells you something.

They use native speakers in your target market

This one is non-negotiable. Fluency in a language is not the same as living and breathing it day-to-day. Native speakers understand current usage, cultural nuance, regional variation and the subtle shifts in tone that make localised content feel natural rather than foreign. Always ask where your translators are based.

They have experience in your sector

A translator working on legal contracts needs a very different skillset to one working on e-commerce product pages or healthcare communications. Sector-specific experience means your translation agency understands the terminology, the regulatory context where relevant, and the expectations of your audience. Ask for examples of similar work before you commit.

They offer a clear, structured briefing process

A good translation agency will guide you through what they need from you upfront. That includes source files, glossaries, tone of voice notes, context around how content will be used, and any technical requirements. If an agency is happy to take a Word document and get started with no further questions, that's not efficiency… it's a shortcut that tends to show in the results.

They're transparent about who actually does the translating

Some agencies act as intermediaries and outsource work to freelancers or third-party suppliers without being upfront about it. There's nothing inherently wrong with that model, but you should know who is handling your content, what their qualifications are, and how quality is managed across the chain. Don't be afraid to ask directly.

They have a quality assurance process – and can tell you what it is

Professional translation services should have a clear QA process in place. This typically involves a second linguist proofreading translated content independently before it reaches you. Ask what that process looks like. If the answer is vague, push for specifics. Quality assurance is what separates a professional translation agency from a fast-turnaround service that prioritises volume over accuracy.

They understand the difference between translation and localisation

Translation converts words from one language to another. Localisation adapts content so it feels native to a new market, accounting for cultural references, date formats, imagery, tone and local expectations. If a translation agency can't clearly articulate the difference, or treats them as the same thing, your content may be technically accurate but feel flat and disconnected to your target audience.

They ask for your tone of voice guidelines

Your brand has a personality. A strong translation agency will want to understand it. If they don't ask for tone of voice guidelines, brand documentation or examples of content you love, volunteer it anyway. The more context your translators have, the more consistently your brand will come across, regardless of which language it's being read in.

They can provide references or case studies

Any established translation service should be able to point you to client references, case studies or examples of previous work. If they can't, or won't, that's worth noting. Testimonials and real-world examples give you a far clearer picture of what working with an agency actually looks like than any sales conversation will.

They're clear on turnaround times and what affects them

Deadlines matter. A good translation agency will be upfront about realistic turnaround times from the start and honest about the factors that affect them: word count, language pair, subject matter complexity, file format, and review stages all play a part. Be wary of agencies that promise unusually fast delivery without qualification. Speed and quality rarely coexist without a well-oiled process behind them.

One final thing

The right translation agency will feel like a partner, not just a supplier. They'll ask good questions, communicate clearly and make you feel confident that your content is in safe hands. If something feels off during the shortlisting process, whether that's vague answers, a lack of process or pressure to decide quickly, trust that instinct.

Getting this decision right from the start makes everything that follows significantly easier.

Thinking about working with a translation agency for the first time? Get in touch – we're happy to talk you through what to expect.