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.
Who are we?
Cambridge Proofreading was founded in Cambridge, England, and is headquartered in Chicago, IL. With experienced editors from the US, UK, Canada and Australia, we proofread and edit in US, UK, Canadian, and Australian English. We are proud to have edited over 201,000 documents for more than 77,000 clients around the world.
Our team of 300+ editing professionals covers the full spectrum of academic disciplines. We also have expertise in the public and private sector, having edited thousands of documents for businesses, non-profit organizations, and public bodies.
Cambridge Proofreading LLC is a registered company in the state of Illinois. Our Certificate of Good Standing can be found on the IL Secretary of State website by searching for our name or file number (05237661).
Our company mission statement
To deliver a superior service experience to our clients by consistently:
Our Quality Guarantee
All orders made through our website are covered by our Quality Guarantee.
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.
Should you not be entirely satisfied with our service and can cite fair justifications, you will be eligible for a full or partial refund or re-edit.*
Subject-focused proofreading and editing services
Our experts are trained in business, the social sciences, STEM and the humanities. Our subject-matter experts offer specialist editing and proofreading across the spectrum of academic subjects.
PhD Anthropology, University of Wisconsin
MA Anthropology, Colorado State University
BS Civil Engineering, Washington University in St. Louis
BS Engineering Science, Manchester College
PhD Public Health, Umeå University
Master of Public Health, University of Alabama at Birmingham
BS Nursing, University of Alabama at Birmingham
BA Global History, Bryn Mawr College
PhD American History, University of Florida
MA History, University of Georgia
BA History and Political Science, University of Georgia
PhD Religion, Syracuse University
MBA Computer Information Systems, Suffolk University
MA Philosophy of Religion, Hartford Seminary
BA Religion, Syracuse University
PhD Neuroscience, Emory University
BA Neuroscience, Johns Hopkins University
PhD History of Science & Medicine, Yale University
MA History & Philosophy of Science, University of Melbourne
MSc Mathematics, University of Auckland
PhD Ecology, Rutgers University
MA Rural Development, University of Sussex
BA Biological Sciences, Mount Holyoke College
PhD Micropalaeontology, University College London
BSc (Hons) Geological Sciences, University of Aston in Birmingham
PhD Computer Science, University of Liverpool
MSc Computer Science, University of Liverpool
BSc Computer Science, University of Liverpool
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.
Enter word count to display pricing and return time options.
For orders over 130,000, please email [email protected] for a quote.
About Our Service Levels What’s this
One-Editor Premium Service
Two-Editor Advanced Service
Field / Topic Optional
Style of English
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Debit/Credit Card No additional fees
PayPal +3% transaction fee
Alipay +3% transaction fee
Document Details
Word Count
Style of English
Field / Topic
File(s) Uploaded
Additional Notes
Project Details
Currency
Service Type
Turnaround Time
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Your Details and Payment
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Email Address
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Order Total Includes +20% surcharge for LaTeX/Overleaf editing
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to our Privacy Policy and Terms & Conditions
PDF files
We can mark up PDFs using sticky notes that you can then manually apply to your file within your original publishing software. However, Microsoft Word’s Track Changes feature is much more comprehensive and highly preferable, whenever possible.
For our standard turnarounds, we are happy to work with whichever you prefer: PDF or Word files.
We have several methods for converting or transferring PDF and LaTeX files to Microsoft Word and will contact you with options immediately after your order is complete.
Please note that we do not accept PDF files for our Express service turnarounds.
Our combined proofreading and editing service includes:
But what about our two-editor advanced service?
Recommended for journal articles, our two-editor service provides an even more in-depth and accurate edit performed by two senior editors.
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Frequently asked questions
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.
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.
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 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 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.
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.
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.
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.
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.
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.
How we proofread and edit texts
Our experienced editors rigorously review and comprehensively improve your text. Through accurate proofreading and intuitive editing, we add real, measurable value to the quality of your writing.
Genuine improvements that you can see
We use Microsoft Word’s Track Changes feature to track all the changes we make to your document. You’ll receive a tracked version that highlights our changes, as well as a clean version with all of our amendments accepted.
Improved style and appropriate tone
We will improve your diction to ensure correct style, tone, and register.
Dr Smith, PhD To improve academic style, avoid using “there is” or “there are” to begin a phrase or sentence, when possible.
Perfect clarity and construct
We will fix ambiguity and awkward phrasing to ensure your writing is clear and fluid.
Dr Smith, PhD I modified the order of ideas in this sentence to improve the logical flow and readability.
Grammar, punctuation and readability
We will correct problems with grammar, punctuation and readability.
Dr Smith, PhD This phrase can either be hyphenated or unhyphenated when used in this context (modifying another word or phrase that follows it), but the unhyphenated form is more common, so I will follow that style throughout this document.
General feedback and advice
The editor will provide feedback and advice on the content and construct of the writing, both within the document and in their Editor’s Summary Report (for orders over 3,000 words).
Dr Smith, PhD Counselling is a specific therapeutic model, but it is not synonymous with psychological therapy.
Genuine improvements that you can see
We use Microsoft Word’s Track Changes feature to track all the changes we make to your document. You’ll receive a tracked version that highlights our changes, as well as a clean version with all of our amendments accepted.
Improved style and appropriate tone
We will improve your diction to ensure correct style, tone, and register.
Dr Smith, PhD To improve academic style, avoid using “there is” or “there are” to begin a phrase or sentence, when possible.
Perfect clarity and construct
We will fix ambiguity and awkward phrasing to ensure your writing is clear and fluid.
Dr Smith, PhD I modified the order of ideas in this sentence to improve the logical flow and readability.
Grammar, punctuation and readability
We will correct problems with grammar, punctuation and readability.
Dr Smith, PhD This phrase can either be hyphenated or unhyphenated when used in this context (modifying another word or phrase that follows it), but the unhyphenated form is more common, so I will follow that style throughout this document.
General feedback and advice
The editor will provide feedback and advice on the content and construct of the writing, both within the document and in their Editor’s Summary Report (for orders over 3,000 words).
Dr Smith, PhD Counselling is a specific therapeutic model, but it is not synonymous with psychological therapy.
Diction, tone, and register
Where appropriate, our editors will amend diction to improve the academic tone and register of your document. For non-academic documents, we aim to ensure that your word choice is tailored to the document’s purpose and intended audience.
Logic and clarity
Logic and clarity are central to successful writing. Our editors will correct problems with logic and clarity where possible and provide feedback and guidance on areas that need the author’s attention.
Sentence structure and awkward phrasing
We address problems with sentence construction and awkward phrasing to ensure that your writing is coherent and logical. For ESL writers, we focus on correcting problems with idiom and syntax, ensuring that your work reads like that of a native speaker.
Redundancy, repetition, and wordiness
Conciseness is vital to successful academic writing. Our editors will analyze your writing and correct wordiness, repetition, and redundancy.
Grammar and punctuation
We will proofread your writing to correct problems with grammar, punctuation, and spelling. We target incorrect punctuation, misused articles, run-on sentences, inappropriate conjunctions, comma splices, subject–verb agreement issues, dangling modifiers, faulty parallelism, and other issues.
Special requests
We’ll gladly accommodate any special requests or requirements that you may have. If you have specific style or editorial guidelines you’d like us to use (e.g., APA, Chicago, MLA), just let us know in the order notes.
Examples of our work
We proofread for grammar and punctuation, and we edit for structure, clarity, and style.
View samples of our English proofreading and editing services below.
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
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
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.
