Professional English proofreading and editing services

Trusted by thousands of ESL speakers, students and international businesses.
  • Subject-expert editors Experienced US/UK editors in your field.
  • Quick turnarounds Working 24/7 to meet your deadlines.
  • Secure & confidential Secure, reliable and confidential service.

Who we are

Cambridge Proofreading LLC is based in Chicago, IL with experienced editors in the U.S., U.K., and Australia. We proofread U.S. and U.K. English. We are proud to have edited over 40,000 documents for more than 14,000 clients around the world.

Our network of over 100 editing professionals covers the full spectrum of academic subjects. We also have expertise in the public and private sector, having edited thousands of documents for businesses, 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 website of the IL Secretary of State by searching our name or file number (05237661) here.

Our Company Mission Statement

To deliver a superior service experience for our valued clients by consistently:

  • Working punctually to deadlines.
  • Being responsive to requests and questions.
  • Providing quality proofreading and editing.

Our Quality Guarantee

All orders made through our website are covered by our quality guarantee. This states that:

  • If you are not satisfied, and can cite fair justification, we will issue a free re-edit or a partial/full refund.
  • All manuscripts submitted to us will meet the English standards required by international publishers and universities.

Subject-focused proofreading and editing services

We provide expert proofreading and editing services in hundreds of subjects classified under the five broad disciplines listed below.


Experienced editors

We have over 140 experienced editing professionals with expertise in a broad range of subjects. Below are a small selection of editor profiles from our team: