Professional English proofreading and editing services

Trusted by thousands of ESL speakers, students, and international businesses.

  • Subject-expert editors

    Experienced US and UK editors in your academic field.

  • A reputation for quality

    Read our verified reviews on TrustPilot.

  • Secure and confidential

    Secure, reliable, and confidential service.

Frequently Asked Questions

  • All Questions
  • Services
  • Payments & Pricing
  • Quality Guarantee
  • Delivery & Times
  • Miscellaneous
  • Can I still request a specific editor or subject specialist if I place an express (12-hour) order?

    While we do our best to accommodate any requests for specific editors, it may not always be possible if the order is for a 12-hour express turnaround. However, for orders of 24 hours or more, we are almost able to assign your preferred editor.

  • Can you verify or complete references?

    We can check that your references are formatted in line with your preferred style guide; just list your requirements in the order notes. Note that we don’t supply reference content or cross-check references with original sources.

  • How can I trust your service/company?

    Cambridge Proofreading LLC is registered in the State of Illinois. We have served 77,000+ clients in 110+ countries. You can verify our LLC registration and Certificate of Good Standing by searching for our company name in the Illinois Department of Business Services database.

    You can also view independent reviews from our previous customers on TrustPilot.

    We take payments via PayPal (accepts credit/debit cards), the internet’s most popular and secure payment gateway.

    We recommend that you read our blog post about avoiding scam proofreading services and carefully evaluate whom to trust with your documents.

  • Will my files be kept secure and confidential?

    Any files submitted to us will be kept in the strictest confidence.

    Only the editing manager and your assigned editor will access your files. We will not share them externally under any circumstances.

    All client files are automatically deleted from our system 21 days after we complete the order. If you’d like us to delete them sooner, simply email us and we’ll be happy to oblige.

    We will gladly sign non-disclosure agreements (NDAs) if required.

  • Is your website secure?

    Our service is 100% secure and confidential.

    Our website is secured with DigiCert SSL Extended Validation and 256-bit encryption.

    Files uploaded through our website are stored on a password-protected server. Only the editing manager and the assigned editor will have access to your file, and it will never be shared externally with anyone under any circumstances.


  • Will you sign a non-disclosure agreement (NDA)?

    We are happy to sign NDAs on request. Please contact us for more information.

  • What is your Quality Guarantee?

    The Cambridge Quality Guarantee covers all orders placed through our website:

    If you are not satisfied with the service you have received and can cite fair justifications, we will issue a partial or full refund or arrange for a re-edit. 

    We guarantee that we will significantly improve the language of your documents. Our performance is measured by your satisfaction; if you’re not entirely happy with our work, contact us and we’ll find a suitable resolution. 


  • Do you have a money-back guarantee?

    If you’re not satisfied with the service you’ve received and can cite fair justifications, we’ll provide a re-edit or issue a partial or full refund. Please contact us if you have any questions.

  • How can I be sure of the quality of your services?

    Remember that you are protected by the Cambridge Quality Guarantee, which states:

    If you’re not satisfied with the service you’ve received and can cite fair justifications, we’ll arrange for a re-edit or issue a partial or full refund.

    If your file is over 20,000 words, you may submit it to us via email (as an attachment) and we will provide a free sample of 500 words within 24 hours.

    Alternatively, you can view samples of our work here.

  • What will my proofread and edited document look like?

    All the editor’s changes are highlighted using the Track Changes feature in Microsoft Word, which allows you to see where improvements have been made. Your editor’s queries and comments will appear in the margin. Click here to see samples of our work.

  • How do you choose which editor will proofread my document?

    There’s no substitute for subject-matter expertise. With 300+ editing professionals, we have expert editors across the full spectrum of academic disciplines. This broad base of knowledge allows us to pair documents with editors who have relevant expertise.

    The editing manager reviews each file before assigning it to the most suitable editor on our team. We will always select the editor whose experience and qualifications are the best match for the subject of the paper.

    While we make every effort to ensure that your editor has experience in your discipline, we cannot always guarantee that the editor will be an expert in your sub-discipline. For example, if you submit a paper on molecular biology, we may pair it with an editor with a background in the wider discipline of biology but not necessarily in the specific sub-discipline of molecular biology.

  • How will you improve my writing?

    For a detailed explanation and sample edits, see How we proofread and edit texts.

    We proofread for:

    Spelling, grammar, punctuation, and typographical errors

    We edit for:

    Academic style, tone and register
    Clarity and flow
    Incorrect sentence structure and awkward phrasing
    Wordiness and redundancy

    Our changes are highlighted using Microsoft Word’s Track Changes feature, allowing you to review and accept or reject each amendment. Click here to see samples of our work.

    We can review your document in line with any specific guidelines (e.g., APA, MLA, Chicago, Harvard, OSCOLA) or requirements that you may have.

    If you’re looking for a cheap, basic, rushed proofreading service, we suggest you look elsewhere, though we advise you to be vigilant of scam websites.

    If, however, you’re looking for a well-priced, premium-quality review and improvement of your writing, we can help.

  • How will my document be returned to me?

    We will send a secure download link to your proofread and edited document via email.

    You will receive a link to download the ‘tracked’ version of your file, which will show the editor’s changes.

    You will also receive a link to download a ‘clean’ version, in which all of our changes will have been accepted, with all tracking removed.

    We will not send any physical or printed copies.

  • What are the key benefits of using your service?

    Please see ‘Why choose us?’ and ‘How we improve a text’ for an overview of the benefits of our service.

  • Do you offer writing, paraphrasing, or translation services?

    No, we do not offer these services. We focus on providing a premium-quality editing and proofreading service.

  • Can you work to a specific style guide or format?

    We can edit documents to specific style guides or formats.

    Our 300+ editing professionals include format specialists across all of the main style guides, including AMA, APA, Bluebook, Chicago, Harvard, IEEE, MLA, and OSCOLA. Be sure to specify any special requirements in your order notes when placing an order.

    If your university or publishing house has provided specific guidelines, we may be able to accommodate these. Please contact us if you have any questions.

  • What if I have follow-up questions?

    We are happy to answer any questions you may have after you have received your proofread and edited document. Simply contact us and we will provide a prompt and full response to your questions.

  • Will you re-review further changes that I make?

    Should you make minor changes to your document after we have completed your order, we will be happy to review them for you. There will be no extra charge, assuming that the changes are not too extensive (i.e., a few sentences or paragraphs, as opposed to entire pages).

    If you would like us to review substantial changes – for example, the entire document or sizable sections thereof – an additional charge will apply.

  • Can I request the same editor as before?

    Absolutely! Simply note this on the order form and we will assign your new order to the editor who completed your earlier work, subject to their availability.

  • Can I have the same editor if I submit in parts?

    Yes, we would assign the same editor to each order that you submit to ensure consistency.

  • What if I am unhappy with the results?

    If you are unhappy with the editor’s work, please contact us and we will find a suitable resolution. This may take the form of a free re-review by a different editor, or a partial or full refund, depending on the circumstances.

  • What are your editors’ experience and qualifications?

    All 300+ Cambridge editors are native English speakers and alumni of leading US, UK, and Anglosphere universities.

    All of our editors meet or exceed the following key standards:

    Advanced qualifications (first, master’s, or doctoral degrees) from respected US, UK, or Anglosphere universities

    At least five years’ experience in academic proofreading and editing or copy-editing

    Significant track records in academic publishing or the commercial sector

    Membership of leading industry bodies, such as the Society for Editors & Proofreaders (SfEP) and the Council of Science Editors (CSE)

    Additionally, our recruitment process is rigorous; less than 1% of editors who apply are accepted into our network.

  • What file formats do you accept?

    The following file types are preferred, as they allow us to utilize the Track Changes feature in Microsoft Word, which tracks and highlights the amendments made by the editor.

    Microsoft Word (doc, docx, rtf)
    Open Office (odt)
    Apple Pages

    We also accept:

    PDF (see below)
    LaTeX (see below)

  • Do you accept LaTeX files?

    We are unable to edit LaTeX files directly. However, if you export or copy and paste your LaTeX source code into a Microsoft Word document, we will leave any programming commands untouched. You can then review our changes in Word and copy and paste the text back into your LaTeX editor.

  • What are your prices?

    We have flat-rate pricing based on word count, service level (one-editor or two-editor), and turnaround time. Enter your word count into our pricing calculator for an instant quote and return time.

  • Will your service affect my plagiarism/Turnitin score?

    No, our service will not have any impact on your plagiarism or Turnitin score. The files you send to us are kept secure and never shared with third parties. See our confidentiality and security policy for more info.

  • How can I be sure you are the best option for me?

    We are a trustworthy organisation with a reputation for excellent work and customer service. Read some independent reviews from our previous clients on TrustPilot.

    We charge mid-range prices for premium-quality work.

    We believe that there is no substitute for subject-matter expertise. Our team of more than 300 editing professionals includes experts in almost every academic discipline.

    Our experienced editors handle thousands of documents for satisfied clients all over the world every year. The majority of our work comes from repeat customers or word-of-mouth referrals. Indeed, the chances are that you found us through the recommendation of a friend or colleague.

    Our Quality Guarantee means that you can be confident that we will deliver high-quality work to you.

  • How does the order process work?

    Ordering is quick and easy.

    – Navigate to our Order Form page and enter your contact details.

    – Upload your file(s) securely to our server; they will be kept in the strictest confidence. Our website is secured by GeoTrust EV SSL.

    – Specify any notes or requirements you may have for the editor. Be sure to list any style guide requirements (e.g., APA referencing).

    – Select your preferred price or turnaround time.

    – Make payment using a credit or debit card via Braintree, or via PayPal.

    – Your order is complete.

    You will receive an email confirmation containing a link to track the status of your order.

    The editing manager will review your document and assign it to an editor with expertise relevant to your subject.

    We will return your proofread and edited file via email within the deadline.

    If you have any difficulties with the ordering process, please feel free to contact us for assistance.

  • What are your payment options?

    We have several options for making payments and accept US dollars, British pounds, and euros.

    Our on-site card payments are securely processed by BrainTree (a PayPal company). Braintree accepts all major credit and debit cards, including Visa, MasterCard, Amex, Maestro, and others.

    We also accept payments via PayPal, the world’s most popular payment gateway. PayPal accepts all major credit and debit cards and is highly secure. You do not need to register for a PayPal account if you choose the “check out with card” option.

    On request, we are also able to accept bank transfers to our US bank account. Please contact us if you wish to use this option.

Order now Login