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 to
Grammar usage guide and real-world examplesUSAGE SUMMARY
"upon request to" is a correct and usable phrase in written English.
It is typically used when someone is asking for permission or assistance from another party. For example, "The company would be willing to expedite delivery of the items upon request to their customer service department."
✓ Grammatically correct
Science
Academia
News & Media
Alternative expressions(1)
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
Data are available upon request to the corresponding authors.
Science
be available upon request to the public.
Academia
All code is available upon request to the authors.
Science & Research
Simulation code is available upon request to the corresponding author.
Science & Research
NSDann unfolding code is freely available, upon request to the authors.
Microsoft would also donate software upon request to eligible schools, from kindergarten through high school.
News & Media
Additional supporting data can be made available upon request to the corresponding author.
Science & Research
The authors are happy to provide the library free of charge upon request to academic institutions.
Science & Research
All other data will be made available upon request to the corresponding author.
Science & Research
Each clearinghouse shall make such information available, upon request, to qualifying multifamily purchasers.
Academia
Upon request to authors.
Science
Expert writing Tips
Best practice
When using "upon request to", ensure the recipient of the request is clearly identified to avoid ambiguity. For example, specify "upon request to the librarian" rather than just "upon request."
Common error
Avoid using "upon request to" in informal contexts. It's better suited for professional or academic writing. Instead, opt for simpler alternatives like "if you ask" or "just ask" in casual conversation.
Source & Trust
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "upon request to" functions as a prepositional phrase indicating a condition for access or provision. As noted by Ludwig AI, it suggests that something is available but only if specifically asked for. Examples show its use in contexts where data or materials are provided only when requested.
Frequent in
Science
70%
Academia
20%
News & Media
10%
Less common in
Formal & Business
0%
Encyclopedias
0%
Wiki
0%
Ludwig's WRAP-UP
In summary, "upon request to" is a grammatically correct prepositional phrase used to indicate that something is available only if someone specifically asks for it. Ludwig AI confirms its correct usage, particularly in formal and scientific contexts. While not extremely common, it effectively communicates conditional availability and sets an expectation for audience action. Alternatives exist, but the specific choice depends on the desired level of formality and context. It's crucial to clearly identify the recipient of the request to avoid ambiguity.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
if requested from
Focuses on the condition of a request being made, changing the preposition.
on application to
Uses "application" instead of "request", implying a more formal process.
subject to a request to
Emphasizes the conditional nature of the action, adding a layer of formality.
available if you ask
Simplifies the phrasing to a more informal tone.
by asking
Shortens the phrase, focusing on the act of asking as the condition.
when a request is made to
Rephrases as a temporal condition, specifying when the action occurs.
conditional on a request to
Highlights the conditional nature, making the dependency explicit.
only with a request directed to
Adds emphasis on the exclusivity and direction of the request.
provided a request is submitted to
Implies a formal submission process for the request.
if one asks
Simplifies the language to a more basic conditional statement.
FAQs
How can I use "upon request to" in a sentence?
Use "upon request to" to indicate that something will be provided or done only if someone asks for it. For example, "Additional information is available "upon request to the author"".
What are some alternatives to "upon request to"?
Alternatives include "if requested from", "on application to", or "available if you ask", depending on the context and level of formality.
Is "upon request to" formal or informal?
"Upon request to" leans towards formal usage, commonly found in academic, scientific, and professional documents. Simpler phrases are more appropriate for informal contexts.
Which is correct, "upon request to" or "on request to"?
"Upon request to" is the more common and generally preferred phrasing. "On request to" might be understood but is less idiomatic. You could also use "subject to a request to".
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
84%
Authority and reliability
4.3/5
Expert rating
Real-world application tested