The phrase "agencies as a source" is correct and usable in written English.
It can be used when discussing the role of agencies in providing information, data, or resources in a particular context.
Example: "In our research, we identified several agencies as a source of valuable data on environmental impacts."
Alternatives: "agencies as providers" or "agencies as resources".
In a six-page statement signed "Joe Stack (1956-2010)" and posted on a Web site connected to Mr. Stack's wife, the author singled out the tax agency as a source of suicidal rage, concluding, "Well, Mr. Big Brother I.R.S. man, let's try something different, take my pound of flesh and sleep well".
Look to everyone in your agency as a source of referrals.
"In particular, it is unacceptable for senior government officials simply to point to excessive agency costs as a source of trusts' difficulties.
Accusing the Republican Party of having "contempt" for government, she asserted that the administration had used federal agencies and contracts "as a source of favors for private interests".
Yes, his agency is cited as a source for its travel expertise by mainstream news outlets.
South Korea's Yonhap news agency quoted a source as saying the colonel was seen as elite by other defectors.
The trial heard that in an operation called Shadower, MI5 described transcripts of telephone intercepts to other intelligence agencies as a "secret and reliable source".
(Why Abdel Rahman was let into the United States, by the way, remains a mystery. A C.I.A. officer at the American Embassy in Sudan signed his visa request. Possibly the agency had used him as a source, the authors speculate. Another possibility, they were told, was that the C.I.A. man had "gone bad").
"Yesterday, our scientists stopped drilling at the depth of 3,768 meters and reached the surface of the subglacial lake," the news agency quoted a source as saying.
Itar-Tass news agency cited a source as saying Snowden would fly from Havana to Caracas, the Venezuelan capital.
