Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
upon request from
Grammar usage guide and real-world examplesUSAGE SUMMARY
"upon request from" is a correct and usable phrase in written English.
You can use it when making a request or granting a request to someone, indicating the request has come from that person. For example: "We are happy to honor your return request upon request from you."
✓ Grammatically correct
Science
Alternative expressions(20)
on request
upon request
at the request of
by arrangement with
subject to approval from
with the permission of
upon authorization from
upon demand from
upon encouragement from
upon instruction from
upon submissions from
upon requests from
upon orders from
upon needs from
on application from
upon applications for
upon application for
upon retirement from
upon validation from
upon consistency from
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
The program is available upon request from the authors.
Science
Data are available upon request from N. Laanait ([email protected]).
Instructions are available upon request from the authors.
Science
Results are available upon request from the author.
Science
This results is available upon request from the author.
Science
These findings are available upon request from the author.
Science
These are available upon request from the corresponding author.
Science
Proofs are available upon request from the authors.
Science
The simulation data are available upon request from the authors.
Science
J The data are available upon request from the authors.
Science
Data is available upon request from the authors.
Expert writing Tips
Best practice
Use "upon request from" to clearly indicate that something is provided or made available only when someone specifically asks for it. This emphasizes the proactive role of the requester.
Common error
Avoid using "upon request from" in excessively passive constructions. Instead of saying "The data was made available upon request from the authors", consider "The authors provide the data upon request", which is more direct and engaging.
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "upon request from" functions as a prepositional phrase indicating the condition under which something is made available or provided. It specifies that the availability is contingent on a request being made by a particular entity. Ludwig AI confirms its usability.
Frequent in
Science
100%
Less common in
News & Media
0%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
In summary, "upon request from" is a grammatically correct and frequently used prepositional phrase, as confirmed by Ludwig. It is most commonly found in scientific contexts, indicating that certain resources are available only if specifically requested from the indicated source. When writing, make sure to use it to clearly convey conditional availability and avoid overly passive constructions to maintain clarity. The analyzed examples highlights that using it helps specify the terms of obtaining resources, making communication precise and informative.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
available on request from
Changes the preposition 'upon' to 'on', slightly altering the emphasis but maintaining the core meaning.
obtainable upon request from
Replaces "available" with "obtainable", highlighting the act of acquiring something.
provided upon request from
Focuses on the action of providing something when asked.
supplied on application to
Uses "application" instead of "request", implying a more formal process.
at the request of
Uses a more concise structure to indicate something is done because someone asked for it.
by arrangement with
Implies a prior agreement or understanding that something will be provided.
subject to approval from
Indicates that the request is contingent on receiving approval from a specific party.
with the permission of
Emphasizes that access or provision is granted only with explicit permission.
on contacting
A direct instruction on the necessary action from the requesting party.
by reaching out to
A less formal version of contacting and indicating a request should be made.
FAQs
How can I use "upon request from" in a sentence?
You can use "upon request from" to indicate that something is available or provided only when someone specifically asks for it. For example, "Additional information is available "upon request from" the corresponding author".
What are some alternatives to "upon request from"?
Some alternatives include "available "on request"", "obtainable "upon request"", or "at the request of", depending on the context.
Is there a difference between "upon request from" and "on request from"?
While both phrases are similar, "upon request from" is slightly more formal. "On request from" is also acceptable and commonly used, but "upon" can add a touch of emphasis.
When should I use "upon request from" instead of just saying "contact the author"?
Use "upon request from" when you want to highlight that something is specifically offered in response to a request, rather than being generally available. "Contact the author" is a more direct instruction, while "upon request from" implies a conditional availability.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
83%
Authority and reliability
4.5/5
Expert rating
Real-world application tested