Hiring a technical writing agency: what they produce, how the work is priced, and the samples to ask for

A technical writing agency produces the documents that explain how a product, system or process works: API references, user guides, installation and admin manuals, standard operating procedures, release notes, knowledge base articles and in product text. Hire one when the people who know the product are too busy to write about it, or when documentation has become the thing that slows sales, support or compliance. Judge an agency on its samples, on its access to your experts, and on whether you own the source files when the project ends.

What an agency delivers

Document	Reader	What good looks like
API and developer documentation	Engineers integrating your product	Working code samples, every parameter described, a quick start that runs the first time
User guides and help articles	Customers using the product	Task based headings, numbered steps, screenshots that match the current version
Admin and installation manuals	IT staff	Prerequisites first, exact settings, a troubleshooting section
Standard operating procedures	Staff, auditors	One person can follow the steps without asking anybody, with owners and review dates
Release notes	Customers and support	What changed, who it affects, what to do
Regulatory and quality documents	Regulators, certification bodies	Structure and wording that matches the standard you are being assessed against
Interface text and microcopy	Product users	Short labels and error messages that say what to do next

Many agencies also run the documentation system: choosing the platform, setting up templates, and training your staff to keep the content current.

Three ways to engage one

1. A fixed project. One deliverable with a defined scope, such as the API reference for a launch. Best when you can describe the finished document.
2. A retainer. A set number of hours or a team on call each month. Best when the product changes often and the documents must keep up.
3. An embedded writer. One writer works inside your team for a term, attending the planning meetings and sitting beside the engineers. Best for a product still being built.

Fees follow the same split: a project price for a defined scope, an hourly or day rate for open work, or a monthly retainer. Ask each bidder to state what is inside the price, the number of review rounds, and how changes to scope are priced. Compare quotes on the written scope, not on the total at the bottom.

What to ask to see

• Samples in your kind of document. A good API writer and a good SOP writer are often different people. Ask for published examples from the person who would write yours.
• The style guide they follow. Serious teams work from a published one. Two well known public examples are the Google developer documentation style guide and the Microsoft Writing Style Guide. An agency that can say which one it applies, and why, has a standard.
• The tools. Many teams write in Markdown held in a code repository so documentation changes ship with the product. Others use a help authoring platform. Ask which they use and whether your team can work in it afterwards.
• Their process for getting facts. The writer must interview your engineers and run the product. Ask how many hours of expert time the project needs, and who on your side supplies them.
• Their review process. A technical review by your expert and a copy edit by a second person should be separate steps.

Contract terms that matter

• Ownership. The contract should say that you own the finished documents and the source files, in an editable format.
• Handover. Ask for the templates, the style notes and a list of every tool used, so a successor can continue.
• Confidentiality. The writer will see unreleased features and sometimes source code. Sign an agreement before the first call.
• Review rounds and turnaround. State how many rounds are included and how long each side has to respond.
• Subject matter expert time. Agree in writing how many hours you will provide. Delays from a missing expert are the usual cause of a late project.
• Accessibility and translation. If documents will be translated or must meet accessibility rules, say so at the start.

A brief that gets a usable first draft

1. The product, the version and the audience for each document.
2. The list of documents, with a sample of the closest existing one.
3. Where the source material lives: specifications, tickets, recorded demos, a test account.
4. The names of the experts and the hours each can give.
5. The format, the platform and the style guide.
6. The review route and the date each stage is due.
7. What done means: for example, a new customer completes the setup using only the guide.

Test the first section before the whole project begins. Ask the agency to write one task or one endpoint, have a person outside your team follow it, and fix what they trip on. It costs a day and shows whether the agency can learn your product.

Red flags

• No samples, or samples the agency cannot show because every client is confidential and no public work exists.
• A price with no scope.
• No access to your engineers, with the writer expected to work from marketing material.
• Source files held back, or kept in a tool only the agency can open.
• A promise to write in a field the team has never worked in, with no plan for learning it.

The same buying discipline applies to other writing suppliers, as the copywriting agency page sets out, and to any work you hand out under a brief, as in outsourcing SEO projects.

Questions about technical writing agencies

How is technical writing different from copywriting?

Copywriting persuades. Technical writing instructs. A technical writer's test is whether the reader completes the task correctly, and the product's facts must be exact.

Can an agency write from our specifications alone?

The first draft can come from them, but the result improves a great deal when the writer can run the product and talk to its engineers.

How long does a documentation project take?

It depends on the number of documents, the stability of the product and how fast your experts review. Ask the agency for a schedule with the review dates written in, and hold both sides to it.

Who maintains the documentation after launch?

Decide this in the contract. Either your team takes it over using the handover pack, or the agency continues on a retainer tied to your release schedule.

Should the documentation be public?

Public documentation helps customers and prospects, and it is read by search engines and assistants alike. Keep internal procedures behind a login.

Documentation is the page an assistant quotes about your product

When a buyer or an engineer asks an assistant how a product works, whether it supports a feature or how to set it up, the assistant looks for the clearest page on the question, and that is nearly always the documentation. Clear headings, one fact per sentence and exact names let it quote you correctly, while a vague or missing page lets it quote somebody else's guess. After the agency delivers, ask ChatGPT, Gemini, Perplexity and Claude five setup questions about your product and read whether they quote your pages. AI Knows Us (aiknowsus.com) runs a question set like that for a business and shows the sources each assistant relied on.