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
as certified by
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "as certified by" is correct and usable in written English.
It can be used when referring to a document, statement, or qualification that has been officially verified or endorsed by a recognized authority or individual. Example: "The report was submitted as certified by the leading expert in the field."
✓ Grammatically correct
Academia
News & Media
Science
Alternative expressions(20)
as verified by
as validated by
as attested by
as recognized by
as confirmed by
as endorsed by
as authorized by
as approved by
as determined by
as notified by
as specified by
as indicated by
as reaffirmed by
as exemplified by
as classified by
as identified by
as ascertained by
as certificated by
as accredited by
as ratified by
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
46 human-written examples
Oh, and the Holy Grail - yes the Grail, as certified by the Vatican.
News & Media
His 74-year career is the longest in sports broadcasting history, as certified by Guinness World Records.
News & Media
(52) Service during World War I in the Russian Railway Service Corps as certified by the Secretary of the Army.
Academia
Payee means a person who is due a payment from a disbursing official as certified by the payment agency.
Academia
Ms Basinger is a bona-fide style icon, as certified by Miuccia Prada who cast Kim as the co-star in her latest Miu Miu campaign.
News & Media
The builders used nontoxic paint and new wood from nonthreatened sources, as certified by the Green Building Council, in both Hoboken and Rosemont.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
14 human-written examples
The device as recently certified by the Wi-Fi Alliance and then as if on cue, Amazon posts the pre-order product page.
News & Media
His statement labels all of them there as enimies, certified by Obama and Cameron.
News & Media
Captain Yee, also known as Youssef Yee, was certified by the Leesburg graduate school.
News & Media
Inability to work or study was recorded as sickness absence certified by a doctor or delayed education [ 28].
Science
We define HACCP-certified firms as those which are certified by BFAR for export to EU, regardless of their export status with respect to other countries.3.3
Expert writing Tips
Best practice
When using "as certified by", ensure that the certifying authority is clearly identified and credible to lend weight to your statement. For example, "the results, as certified by an independent auditor, confirm the company's profitability."
Common error
Avoid using "as certified by" without specifying who or what is doing the certifying. The phrase loses its impact if the source of certification is ambiguous or unknown. Always include the specific entity providing the certification.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "as certified by" functions as an adverbial phrase, modifying a verb or clause to indicate the source of certification or validation. As demonstrated by Ludwig, it adds credibility by specifying the authority confirming the information.
Frequent in
Academia
30%
News & Media
40%
Science
30%
Less common in
Formal & Business
0%
Wiki
0%
Reference
0%
Ludwig's WRAP-UP
In summary, the phrase "as certified by" is a grammatically sound and frequently used expression to indicate official verification or endorsement. Ludwig's AI confirms its correctness and wide applicability, particularly in academic, news media, and scientific contexts. To maximize its effectiveness, always clearly specify the certifying authority. By avoiding ambiguity, you enhance the credibility and impact of your statements. With a high expert rating of 4.5, "as certified by" is validated as a powerful tool for conveying validated information across diverse fields.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
as verified by
Focuses on the act of checking or proving something to be true.
as validated by
Highlights the process of confirming the accuracy or legitimacy of something.
as attested by
Emphasizes a formal declaration or testimony supporting the truth of something.
as confirmed by
Stresses the reinforcement or corroboration of an existing fact or statement.
as endorsed by
Indicates official approval or support from a recognized authority.
as authorized by
Implies formal permission or approval to act or proceed.
as approved by
Highlights agreement or satisfaction with something.
as recognized by
Focuses on acknowledging the validity or legitimacy of something.
as determined by
Emphasizes that a conclusion or decision has been reached through investigation.
as authenticated by
Suggests that something has been proven genuine or original.
FAQs
How can I use "as certified by" in a sentence?
The phrase "as certified by" is used to indicate that something has been officially verified or endorsed by a recognized authority. For example, "The data, as certified by the National Institute of Standards and Technology, is highly accurate."
What are some alternatives to the phrase "as certified by"?
You can use alternatives like "as verified by", "as validated by", or "as attested by" depending on the specific context.
When is it appropriate to use "as certified by" in writing?
It is appropriate to use "as certified by" when you need to emphasize that information or a claim has been officially confirmed or validated by a trusted source. This adds credibility and authority to your statement.
What's the difference between "as certified by" and "as recognized by"?
"As certified by" implies a formal validation process, where an authority confirms something meets specific standards. "As recognized by", on the other hand, suggests acknowledgment or acceptance, but not necessarily a formal certification.
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested