Qrow Branwen/Affiliation

Qrow's Team
Qrow was a member of Qrow's Team.

Signal Academy
Qrow is a staff member at Signal Academy.

Ruby Rose
Ruby is Qrow's niece. Qrow is responsible for teaching Ruby how to wield her weapon, Crescent Rose. At one point he saved her life and Yang's when Yang went searching for her mother and ran into a group of Grimm.

"It's Brawl in the Family," Ruby was openly gleeful to seeing him. Some small aspects his personality reflects on her, albeit more cool-headed and nonchalant, rather than bubbly and hyper.

Yang Xiao Long
Yang is Qrow's niece. At one point he saved her life and Ruby's when Yang went searching for her mother and ran into a group of Grimm.

Ozpin
Qrow and Ozpin appear to share some history together, as Ozpin affectionately refers to him as "a dusty, old Qrow" in "Ruby Rose". Ozpin also expresses familiarity with Qrow's ability as a scythe-wielder, referring to him as the only other wielder he knows of who is as skilled as Ruby.

In "Black and White", Qrow sends a message to Ozpin's scroll that reads, "Queen has pawns", suggesting an ongoing collaboration between them regarding apparent threats.

James Ironwood
General Ironwood shows concern over Qrow's warning in his conversation with Ozpin in "Welcome to Beacon". Which prompted him to bring his fleet to Vale in hopes of preventing conflict in the Vytal Festival. However, it is revealed in "It's Brawl in the Family" that this action only infuriated Qrow towards Ironwood.

When Qrow appears in "It's Brawl in the Family," the two are shown to be on less than friendly terms as implied by Qrow's alcoholic habits. He goes so far as to tell Ironwood that if he were one of Ironwood's men, he'd shoot himself. Qrow reveals that he is in Ozpin's circle because Ozpin solely invited him, which suggests that he was against the decision at the time.

Summer Rose
Qrow was on the same team as Summer Rose.

Taiyang Xiao Long
Qrow was on the same team as Taiyang Xiao Long. As they are both known to be teachers at Signal Academy, they are colleagues at the school.

Raven Branwen
Qrow was on the same team as Raven. The relationship is unclear.

Winter Schnee
In "New Challengers...," it is implied that Qrow has an interest in confronting Winter, as well as in the Volume 3 Opening, where the two become agitated when in each other's presence. In "It's Brawl in the Family," it is revealed that this was provoked by Winter's affiliation with General Ironwood and the Atlesian Military, due to the latter's excess of security measures during the Vytal Festival. He's quick to berate Winter on this, which quickly evolved into a physical altercation.

Cinder Fall
Qrow claims to have seen what she's done while tracking her, and is therefore determined to bring her into the light.