Summary
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Eishu, Isamu, Seijin, Seiai, Ketsubutsu, Shiketsu and UA are the main hero schools present.
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Each school has its own peculiarities, rivalries and involvement in exams and wars.
With the dream of becoming a professional hero within everyone's reach in the Quirk-filled world of My Hero Academia, it makes sense that hero schools would be formed to prepare these aspiring heroes for their future careers. From hero practice tests to internships with veteran Pro-Heroes, these schools prepare their students for success.

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While UA High is the most popular and well-known of the bunch, a few other Hero institutions are introduced over the course of the series. Whether it's their students vying for their hero licenses or working together to resist the rising tide of villains, here are all the hero schools you can find in My Hero Academia.
7
Eishu High School
Not much is known about Eishu High School as they were only briefly mentioned in the Team-Up Missions manga. However, they appear to be just as skilled and prestigious as UA and Shiketsu, earning third place during the National Hero Course Ski Jumping Tournament competition.
Unfortunately, there isn't much more information about Eishu, but it could be assumed that they played a role during the Final War, linking their security system with that of the AU to aid in the evacuation of refugees.
6
Isamu Academy High School
A school of heroes created just for the anime, Isamu Academy was featured in the OVA episode, Training of the Dead. Apparently, Isamu is located near UA, where Isamu has sent four of his hero students to UA to join Class 1-A in a hero training exercise.
Of course, things aren't going so well. Although the Quirks of all four Isamu students are formidable, Fujimi Romero's Zombie Virus Quirk goes out of control and turns most of the students (including his classmates) into zombies. However, Isamu Academy is not mentioned anywhere outside of the OVA episode and there is no further information about them.
5
Seijin High School
A hero school with the coolest uniform, Seijin High School took part in the hero licensing exam with the other hero schools. Instead of focusing on the other students of Class 1-A, Seijin's students seem to have their sights set on only one of his power centers, Todoroki Shouto.
Using their environment, the Seijin students attempt to overwhelm and overwhelm Todoroki, who has separated himself from the rest of Class 1-A to go alone. However, Todoroki tricked and defeated the Seijin students, and it can be assumed that some – if not all – did not advance, since Todoroki eliminated the students' ringleader from the first round.
4
Seiai Academy
Introduced during the Hero License Exam arc, Seiai Academy is a hero school that appears to only enroll female students. Like the other hero schools, the Seiai students targeted the UA students, with Saiko Intelli quickly devising a plan using her IQ Quirk to take down Momo, Shoji, Tsuyu, and Jiro.

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Although Saiko's plan almost worked, it was foiled by Momo and Jiro, who used their Quirks to immobilize Saiko's classmates. It is unclear whether Saiko and her classmates passed the licensing exam, since they were not mentioned nor appeared again afterward. It's also unclear where Seiai's students were during the Final War, but since UA worked with other hero schools to create a connected safety net, it's safe to say Seiai took part as well.
3
Ketsubutsu Academy High School
A hero school that could even be said to rival UA High, Ketsubutsu Academy was first shown during the Hero's License Arc alongside Shiketsu. The school appears to have high standards and an impeccable reputation as well, with the Pro-Hero Ms Joke working as the heroism teacher at the school.
Ms. Joke's class took part in the Hero License exam and targeted UA students, as their Quirks were broadcast during the UA Sports Festival. Notable students include Shindo Yo (hero name Grand) and Tatami Nakagame (hero name Turtle Neck), both of whom took the lead in herding civilians into safe havens during the Final War and were present to arrest the bad Skeptic.
2
Shiketsu High School
A lauded hero school, Shiketsu High School is located in western Japan and was considered UA High's main rival, attracting students with powerful Quirks as UA does. However, unlike other schools, Shiketsu students are not seen in their hero costumes when on the field, but instead wear the school uniform to represent their school.
Along with Ketsubutsu, Shiketsu and his students were introduced during the Provisional Hero License Exam arc, with particularly powerful students such as Yoarashi Inasa capable of eliminating dozens of competing students at once. Along with UA, Shiketsu was targeted by the League of Villains (though their attacks are not as severe), with Toga Himiko impersonating one of her students, Camie Utsushimi, to infiltrate the exam.
During the Final War, Shiketsu served as a second refuge for civilians, while its students joined the fight against All For One. The school also worked with the UA to create an interconnected security system for quick and easy evacuation in the event of an attack.
1
UA High School
UA High is considered the top-ranked hero school in Japan, as well as the best hero school in the world. The school has produced some of the greatest heroes the world has ever seen, from the symbol of peace, All Might, to the high-ranking heroes Endeavor and Edgeshot.
As expected, UA has set high standards for its potential student heroes, with a difficult written and practical exam. With its enormous budget, the school has state-of-the-art security measures and a large pool of resources to train both its Hero students in rescue and combat work.
In the show, the school is the focal point of a series of attacks by the League of Villains (later Paranormal Liberation Front). Later, during the Final War, the school became a safe haven for refugees, even transforming the campus into a floating fortress to isolate and defeat Shigaraki Tomura.

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