Not yet being full members within Hello! Project, the girls mainly perform at Hello! Project concerts as back-up dancers for the major acts. The Kenshuusei also hold their own concerts and have their own songs. Some Kenshuusei have acted in various dramas, plays and musicals.
- Main article: Hello Pro Kenshuusei Members
Apr. 30, 2004 (16)
HPK Unit Member
July 15, 2005 (15)
July 20, 2005 (15)
Feb. 9, 2004 (16)
July 23, 2004 (16)
HPK Unit Member
Feb. 26, 2008 (12)
Oct. 28, 2002 (17)
HPK Unit Member
Jan. 23, 2008 (12)
June 18, 2003 (17)
Oct. 17, 2005 (14)
Apr. 17, 2006 (14)
July 25, 2006 (14)
Aug. 30, 2006 (14)
Jan. 30, 2007 (13)
Dec. 20, 2007 (12)
Feb. 11, 2008 (12)
Feb. 25, 2008 (12)
- 1st Generation (2004)
- Korenaga Miki (是永美記) (Left in 2008)
- Kawashima Miyuki (川島幸) (Left in 2005)
- Okada Yui (岡田唯) (Debuted in 2004)
- Noto Arisa (能登有沙) (Left in 2009)
- Morozuka Kanami (諸塚香奈実) (Left in 2007)
- Aoki Erina (青木英里奈) (Left in 2008)
- Tanaka Anri (田中杏里) (Left in 2010)
- Ose Kaede (大瀬楓) (Left in 2007)
- Sengoku Minami (仙石みなみ) (Left in 2010)
- Sawada Yuri (澤田由梨) (Left in 2009)
- Muto Mika (武藤水華) (Left in 2008)
- Hashida Mirei (橋田三令) (Left in 2007)
- Furukawa Konatsu (古川小夏) (Left in 2011)
- Hashimoto Aina (橋本愛奈) (Left in 2007)
- Ooyanagi Maho (大柳まほ) (Left in 2005)
- Akiyama Yurika (秋山ゆりか) (Left in 2007)
- Okada Robin Shouko (岡田ロビン翔子) (Left in 2007)
- Arihara Kanna (有原栞菜) (Debuted in 2006)
- Goto Yuki (後藤夕貴) (Left in 2007)
- Sainen Mia (西念未彩) (Left in 2010)
- Mori Saki (森咲樹) (Left in 2011)
- Yutoku Ayumi (湯徳歩美) (Left in 2007)
- Kitahara Sayaka (北原沙弥香) (Left in 2011)
- Wada Ayaka (和田彩花) (Debuted in 2010)
- Maeda Yuuka (前田憂佳) (Debuted in 2010)
- Fukuda Kanon (福田花音) (Debuted in 2010)
- Saho Akari (佐保明梨) (Left in 2011)
- Okai Asuna (岡井明日菜) (Left in 2010)
- Sekine Azusa (関根梓) (Left in 2011)
- Ogawa Saki (小川紗季) (Debuted in 2010)
- Maeda Irori (前田彩里) (Left in 2010)
- Arai Manami (新井愛瞳) (Left in 2011)
- 2nd Generation (2006)
- Mano Erina (真野恵里菜) (Debuted in 2008)
- Ogura Manami (小倉愛実) (Left in 2007)
- Komine Momoka (古峰桃香) (Left in 2010)
- 3rd Generation (2007)
- Kikkawa Yuu (吉川友) (Left in 2010)
- Transfer Student (2007)
- Linlin (リンリン) (Debuted in 2007)
- 4th Generation (2008)
- Fukumura Mizuki (譜久村聖) (Debuted in 2011)
- Kaneko Rie (金子りえ) (Left in 2013)
- Takeuchi Akari (竹内朱莉) (Debuted in 2011)
- 5th Generation (2008)
- Miyamoto Karin (宮本佳林) (Debuted in 2013)
- 6th Generation (2009)
- 7th Generation (2009)
- 8th Generation (2009)
- Takagi Sayuki (高木紗友希) (Debuted in 2013)
- 9th Generation (2009)
- Tanabe Nanami (田辺奈菜美) (Left in 2014)
- 10th Generation (2010)
- Kizawa Runa (木沢留那) (Left in 2010)
- Nagasawa Wakana (長澤和奏) (Left in 2011)
- Kudo Haruka (工藤遥) (Debuted in 2011)
- 11th Generation (2011)
- Yoshihashi Kurumi (吉橋くるみ) (Left in 2014)
- Hamaura Ayano (浜浦彩乃) (Debuted in 2015)
- Taguchi Natsumi (田口夏実) (Debuted in 2015)
- 12th Generation (2011)
- Otsuka Aina (大塚愛菜) (Left in 2013)
- Mogi Minami (茂木美奈実) (Left in 2012)
- Ogawa Rena (小川麗奈) (Debuted in 2015)
- 13th Generation (2011)
- 14th Generation (2012)
- 15th Generation (2012)
- 16th Generation (2012)
- 17th Generation (2012)
- Kanazawa Tomoko (金澤朋子) (Debuted in 2013)
- Ichioka Reina (一岡伶奈) (Graduated in 2017)
- Kaga Kaede (加賀楓) (Debuted in 2016)
- Kishimoto Yumeno (岸本ゆめの) (Debuted in 2017)
- Makino Maria (牧野真莉愛) (Debuted in 2014)
- Wada Sakurako (和田桜子) (Debuted in 2015)
- 18th Generation (2013)
- Sasaki Rikako (佐々木莉佳子) (Debuted in 2014)
- 19th Generation (2013)
- Tanaka Karen (田中可恋) (Left in 2014)
- Inaba Manaka (稲場愛香) (Debuted in 2014)
- Mikame Kana (三瓶海南) (Left in 2015)
- Fujii Rio (藤井梨央) (Debuted in 2015)
- Mashiro Kana (真城佳奈) (Left in 2013)
- Inoue Hikaru (井上ひかる) (Left in 2018)
- 20th Generation (2013)
- Yamaki Risa (山木梨沙) (Debuted in 2014)
- Yokogawa Yumei (横川夢衣) (Left in 2016)
- Niinuma Kisora (新沼希空) (Debuted in 2017)
- Oura Hirona (大浦央菜) (Left in 2014)
- Dambara Ruru (段原瑠々) (Debuted in 2017)
- Haga Akane (羽賀朱音) (Debuted in 2014)
- Funaki Musubu (船木結) (Debuted in 2015)
- 21st Generation (2014)
- Aikawa Maho (相川茉穂) (Debuted in 2014)
- Takemura Miu (竹村未羽) (Left in 2016)
- Saito Kana (橋本渚) (Left in 2015)
- 22nd Generation (2014)
- Hashimoto Nagisa (橋本渚) (Left in 2016)
- Horie Kizuki (堀江葵月) (Left in 2018)
- Shimano Momoko (島野萌々子) (Left in 2016)
- Ogata Risa (小片リサ) (Debuted in 2017)
- Hirose Ayaka (廣瀬彩海) (Debuted in 2015)
- Tanimoto Ami (谷本安美) (Debuted in 2017)
- Inoue Rei (井上玲音) (Debuted in 2015)
- Asakura Kiki (浅倉樹々) (Debuted in 2017)
- Onoda Saori (小野田紗栞) (Debuted in 2017)
- 23rd Generation (2015)
- Takase Kurumi (高瀬くるみ) (Graduated in 2017)
- 24th Generation (2015)
- Ono Mizuho (小野瑞歩) (Debuted in 2017)
- Nakano Rion (仲野りおん) (Left in 2016)
- Yanagawa Nanami (梁川奈々美) (Debuted in 2015)
- Maeda Kokoro (前田こころ) (Graduated in 2018)
- Akiyama Mao (秋山眞緒) (Debuted in 2017)
- Kanatsu Mizuki (金津美月) (Left in 2018)
- Kasahara Momona (笠原桃奈) (Debuted in 2016)
- Okamoto Honoka (岡本帆乃花) (Left in 2015)
- 25th Generation (2016)
- Noguchi Kurumi (野口胡桃) (Left in 2018)
- Ono Kotomi (小野琴己) (Left in 2019)
- Kodama Sakiko (児玉咲子) (Left in 2019)
- Kiyono Momohime (清野桃々姫) (Graduated in 2017)
- 26th Generation (2016)
- Kawamura Ayano (川村文乃) (Debuted in 2017)
- Yokoyama Reina (横山玲奈) (Debuted in 2016)
- Yoshida Marie (吉田真理恵) (Left in 2017)
- Nishida Shiori (西田汐里) (Graduated in 2018)
- Yamazaki Yuhane (山﨑夢羽) (Graduated in 2018)
- Hashisako Rin (橋迫鈴) (Debuted in 2019)
- 27th Generation (2017)
- Shimakura Rika (島倉りか) (Graduated in 2018)
- Hibi Marina (日比麻里那) (Left in 2018)
- Eguchi Saya (江口紗耶) (Graduated in 2018)
- Doi Rena (土居麗菜) (Left in 2018)
- Okamura Minami (岡村美波) (Graduated in 2018)
- Matsunaga Riai (松永里愛) (Debuted in 2019)
- 28th Generation (2017)
- Hashimoto Momoko (橋本桃呼) (Left in 2018)
- Goto Sayaka (後藤咲香) (Left in 2018)
- Shutto Anna (出頭杏奈) (Left in 2019)
- Kanemitsu Ruru (金光留々) (Left in 2019)
- 29th Generation (2018)
- Kusunoki Mei (楠萌生) (Left in 2019)
From June 19 through June 20, 32 winners were selected from the 10,570 applicants of the Hello Pro Egg Audition 2004, and formed Hello Pro Egg.
On August 10, all of the winners of the "Hello Pro Egg Audition 2004" began activities within Hello Pro Egg except Arai Manami and Maeda Irori, who began activities in 2007, and Okada Yui, who joined v-u-den. 4 of the members were designated as futsal trainees, with the goal of someday becoming full fledged players of Gatas Brilhantes H.P..
In October 2005, Tomoiki Ki wo Uetai was formed.
In May 2007, Hello Pro Egg held their first concert, Dai 1kai Hello! Project Shinjin Kouen ~Saru no Koku~ / ~Tori no Koku~.
In January 2008, Korenaga Miki graduated from Hello Pro Egg to concentrate on Gatas Brilhantes H.P. and Ongaku Gatas. Noto Arisa took her place as leader of Hello Pro Egg.
In September 2008, Shugo Chara Egg! was created to record the theme songs for the anime, Shugo Chara!.
In November 2008, Miyamoto Karin joined Hello Pro Egg.
In the April issue of De☆View (released in March 2009), Sato Ayano appeared alongside Noto Arisa and Kaneko Rie, as a Hello Pro Egg member. During the Yokohama HOP! concert in April, Sato Ayano's membership was officially announced, as well as the addition of new member Sezaki Azusa.
On November 23, it was announced that S/mileage would graduate from Hello Pro Egg and make their debut in Hello! Project in 2010. Initially when the group was first formed on April 4, Tsunku had said that in order to make the best group possible, additional members might be added or current members might be removed. Wada Ayaka, Maeda Yuuka, Fukuda Kanon, and Ogawa Saki were confirmed to be the definitive line-up of S/mileage. They debuted on March 27, 2010, and S/mileage would later make their major debut in May.
On November 28, Takagi Sayuki joined Hello Pro Egg.
Between June and December, began going through major line-up changes, and several members of Hello Pro Egg left. At the end of 2010, it was also announced that Sengoku Minami and Kikkawa Yuu had finished their egg training. It was also announced that Kikkawa would be the opening act for Hello! Project's 2011 Winter Tour, and that she was going to start a solo career.
At the first day of the Hello! Project 2011 winter tour, it was announced that Fukumura Mizuki would be joining Morning Musume as a ninth generation member. Jang Da Yeon also became a member of the new Hello Pro Egg Korea.
After the announcement, it was announced that Mori Saki, Furukawa Konatsu (in January 2011), Kitahara Sayaka, Sekine Azusa, Arai Manami, Sato Ayano (in March 2011), and Saho Akari (in April 2011) had also graduated. Kitahara would go on to have a solo career and the other girls plus Sengoku Minami would go onto form Up Up Girls (Kari).
On September 29, it was announced that Kudo Haruka would be joining Morning Musume as a tenth generation member. Two weeks later, Takeuchi Akari and Katsuta Rina officially became members of the second generation of S/mileage.
In January, the name of the program was officially changed from Hello Pro Egg to Hello Pro Kenshuusei. That same month, S/mileage sub-member Kosuga Fuyuka became a member of Hello Pro Kenshuusei, alongside Hello Pro Kansai Kenshuusei Uemura Akari, after recovering from severe anemia.
In September, It was announced that Hello Pro Kenshuusei would release their first single. The title was revealed to be Kanojo ni Naritai!!! and it was sold during S/mileage Live Tour 2012 Aki ~Choi Kawa Banchou~. The song is sung by Otsuka Aina, Tanabe Nanami, Hamaura Ayano, Miyamoto Karin, and Taguchi Natsumi.
On November 20th, it was announced that selected Kenshuusei would be in a stage play, called Nettai Danshi (熱帯男子).
In December, Kanazawa Tomoko, Ichioka Reina, Kaga Kaede, Kishimoto Yumeno, Makino Maria, and Wada Sakurako joined Hello Pro Kenshuusei. Later, in an interview with Kaneko Rie, regarding the recently added Kenshuusei and the 12gatsu no Nama Tamago Show concert, Kaneko revealed that she was the leader of Hello Pro Kenshuusei.
On February 3, during the Bravo! concert in Fukuoka, it was announced that Kanazawa Tomoko, Takagi Sayuki, Otsuka Aina, Miyamoto Karin and Uemura Akari would be debuting in a new unit (Juice=Juice) alongside GREEN FIELDS' Miyazaki Yuka, The unit started off as an indies group aiming for a major debut.
On April 11, the first episode of Hello Pro Kenshuusei's new show, Hello! Pro Kenshuusei no Tadaima Kenshuuchuu!, was aired.
On May 19, at the Hello! Project Yaon Premium Live ~Soto Fest~ concert, the Kenshuusei announced and performed a new single titled Ten Made Nobore!, featuring Juice=Juice, the single was released on June 8, 2013. That same month, Tanaka Karen, Inaba Manaka, Mikame Kana, Fujii Rio, Mashiro Kana, and Inoue Hikaru joined Hello Pro Kenshuusei.
On July 5, it was announced that Otsuka Aina had withdrawn from both Hello Pro Kenshuusei and Juice=Juice due to issues with her contract and family. She had no graduation ceremony because of the withdrawal.
On August 30, auditions for "Temporary Egg" was announced, those who passed would train for half a year, then be promoted to Kenshuusei.
On October 5, the first episode of their variety show, ~Onedari Entame!~ Hapi★Pure, was aired.
On October 25, "Hello Pro Kenshuusei" was added to the UP-FRONT PROMOTION website under "Talent."
In November, the Juice=Juice members profiles were removed from the Hello Pro Kenshuusei website, bringing the member count down to 28.
On December 7, Yamaki Risa, Niinuma Kisora, Yokogawa Yumei, Oura Hirona, Dambara Ruru, Haga Akane, and Funaki Musubu joined Hello Pro Kenshuusei. A week later, on December 14, after five years of being in Hello Pro Kenshuusei, Kaneko Rie quit. However, she stayed until the 21st.
In January, Kenshuusei members had self-introduction and interview videos uploaded to their Hello! Pro Kenshuusei YouTube channel.
On November 5, it was announced that Inaba Manaka and Yamaki Risa would be joining Country Girls, a 2014 reboot of Country Musume, alongside three other non-kenshuusei. The seven debuting Kenshuusei will still participate in the November / December Kenshuusei Recital.
On November 16, NICE GIRL Project! was dissolved and NICE GIRL Project! Kenshuusei members Hashimoto Nagisa, Horie Kizuki, Ogata Risa, Shimano Momoko, Hirose Ayaka, and Inoue Rei joined Hello Pro Kenshuusei on November 29 alongside Tanimoto Ami, Asakura Kiki, and Onoda Saori.
On November 29, Hello Pro Kenshuusei released their first album ① Let's say "Hello!", it was available for purchase at the November/December Nama Tamago Show concerts, and it eventually had a general release on February 18, 2015.
On December 27, an audition for new members, ranging from 4th year elementary school students to 3rd year middle school students, was announced through De☆View. The audition was also looking for new Up-Front Kenshuusei members.
On January 2, during the Hello! Project 2015 WINTER ~DANCE MODE!~ concert, a new Kenshuusei unit Kobushi Factory was announced. The unit consists of Hamaura Ayano, Taguchi Natsumi, Ogawa Rena, Nomura Minami, Wada Sakurako, Fujii Rio, Hirose Ayaka and Inoue Rei.
On April 30, it was revealed that Saito Kana had ended her training.
On November 6, it was revealed that Okamoto Honoka had ended her training.
On March 24, it was revealed that Takemura Miu had ended her training.
On August 13, Ono Mizuho, Onoda Saori, and Akiyama Mao joined Tsubaki Factory as new group members. Later, on August 17, Kawamura Ayano, Yokoyama Reina, Yoshida Marie, Nishida Shiori, Yamazaki Yuhane, and Hashisako Rin joined Hello Pro Kenshuusei.
On February 28, Tsubaki Factory member profiles were removed from the Hello Pro Kenshuusei page on the Hello! Project site.
On March 6, it was revealed that Yoshida Marie had ended her training. At the same time, Shimakura Rika, Hibi Marina, Eguchi Saya, Doi Rena, Okamura Minami, Matsunaga Riai, Yamada Ichigo, and Nakayama Natsume joined the program.
On May 5, during the Hello! Project Kenshuusei Happyoukai 2017 ~Haru no Koukai Jitsuryoku Shindan Test~, the debut of Takase Kurumi and Kiyono Momohime in a new section focused on theater, Inoue Hikaru as the new leader of Hello Pro Kenshuusei, and the debut of Ichioka Reina, Dambara Ruru, and Kawamura Ayano in Hello! Project (either as a new unit or in a generational group) in the near future were announced.
On February 9, it was announced that Goto Sayaka had ended her training
On April 23, it was announced that Hashimoto Momoko had completed her training.
On May 29, it was announced that Inoue Hikaru had completed her training.
On June 9, during the Hello! Project Kenshuusei Happyoukai 2018 6gatsu ~Niji~ in Tokyo, it was announced that Shimakura Rika, Nishida Shiori, and Eguchi Saya were chosen to join the new group led by Ichioka Reina that would debut later in 2018. It was also announced that Maeda Kokoro, Yamazaki Yuhane, and Okamura Minami were selected to join the second new group which already includes Takase Kurumi and Kiyono Momohime and would debut later in 2018.
On July 14, the promoted member profiles were removed from the Hello Pro Kenshuusei page on the Hello! Project site.
On January 16, it was revealed that Kodama Sakiko has ended her training.
On April 2, Kusunoki Mei's profile was removed from Hello Pro Kenshuusei's artist profile, indicating that she had left the program.
On July 11, a unit within the program was announced consisting of a rotating line-up of members of Hello Pro Kenshuusei or Hello Pro Kenshuusei Hokkaido, simply called the Hello Pro Kenshuusei Unit. The unit was formed in order to check members' activities more closely as they aim to make their debut. They will perform at Hello! Project concerts like a major group so they can improve their skills. Depending the situation, members may be replaced once their trainee or unit activities have been checked. The starting members are Yonemura Kirara, Ishiguri Kanami, Kubota Nanami, Kanemitsu Ruru, and Saito Madoka.
On July 26, the list of members appearing in Hello! Project Kenshuusei Happyoukai 2019 9gatsu ~Kira~ was released, and it was announced that Ono Kotomi and Shutto Anna had both completed their training.
On December 29, Kanemitsu Ruru's profile was removed from the Hello! Project website, indicating that she resigned from Hello Pro Kenshuusei.
On December 30, it was announced that a new Hello Pro Kenshuusei radio show called Hello Pro Kenshuusei no Tadaima Radio Benkyouchuu!! would begin airing on January 5 in the time-slot previously belonging to Country Girls's radio show Country Girls no Tadaima Radio Housouchuu!!.
On April 20, an official joint staff Twitter account with Hello Pro Kenshuusei Hokkaido was opened.
- See also: Hello Pro Kenshuusei Discography
- Indies Singles
- [2012.09.23] Kanojo ni Naritai!!! - Miyamoto Karin, Tanabe Nanami, Hamaura Ayano, Taguchi Natsumi, Otsuka Aina
- [2013.06.08] Ten Made Nobore! (Hello! Project Kenshuusei feat. Juice=Juice)
- [2013.12.21] Oheso no Kuni Kara Konnichiwa / Ten Made Nobore! (DVD single)
- Soundtrack Singles
- Digital Songs
- [2017.06.02] Hello! Massara no Jibun
- [2017.06.30] Isshakudama de Buppanase!
- [2017.09.08] Arigatameiwaku Monogatari
- Original Songs
-  Warui Hito (悪いヒト; Bad Person)
- [2007.05.13] Dai 1kai Hello! Project Shinjin Kouen History of Hello Pro Egg (fanclub exclusive)
- [2007.09.26] Dai 1kai Hello! Project Shinjin Kouen ~Saru no Koku~ / ~Tori no Koku~
- [2007.11.23] Hello Pro Egg DVD PAMPHLET (fanclub exclusive)
- [2008.11.24] 2008 Hello! Project Shinjin Kouen 9gatsu ~Shibakouen STEP!~
- [2009.04.04] Hello Pro Egg DVD Magazine Vol.1 (only available at the 2009 April recital)
- [2009.09.23] 2009 Hello! Project Shinjin Kouen 6gatsu ~Nakano STEP!~
- [2009.12.24] Kyou wa Nan no Hi? Egg no Hi! DVD ~Synchro Quiz Hen~
- [2009.12.24] Kyou wa Nan no Hi? Egg no Hi! DVD ~Game Hen~
- [2010.03.27] Hello Pro Egg DVD Magazine Vol.2 (only available at the 2010 March recital)
- [2010.11.28] Hello Pro Egg DVD Magazine Vol.3 (only available at the 2010 November recital)
- [2013.03.31] Hello! Pro Kenshuusei DVD Magazine Vol.1
- [2014.05.22] Hello Pro Kenshuusei Micchaku 2013nen Fuyu
- [2014.08.27] Bokutachi Karen na Shounen Gasshoudan
- [2018.10.17] Hello! Project Kenshuusei Happyoukai 2018 6gatsu ~Niji~
-  Edo Kara Chakushin!? ~Timeslip to Kengai!~
-  Hakujaden ~White Lovers~
-  Reverse! ~ Watashi no Karada Doko Desu ka?
-  Ojigi 30do On Stage
-  Berryz Koubou VS Berryz Koubou
-  Ojigi de Shape Up!
-  Shugo Chara!
-  Fashionable
-  Sanokuen Shoujo
-  Akuma no Tsubuyaki
-  Ima ga Itsuka ni Naru Mae ni
-  Reborn ~Inochi no Audition~
-  1974 (Ikunayo)
-  STRONGER
-  Nettai Danshi (熱帯男子)
-  Sakura no Hanataba
-  Bokutachi Karen na Shounen Gasshoudan
-  LILIUM -Lilium Shoujo Junketsu Kageki-
-  SMILE FANTASY!
-  Kurukuru to Shi to Shitto
-  TRIANGLE
-  Zoku 11nin Iru! Higashi no Chihei, Nishi no Towa
-  Mode
-  Nega Poji Poji
-  Bokutachi Karen na Shounen Gasshoudan (2017)
-  Pharaoh no Haka ~Hebi Ou Sneferu~
-  Harukanaru Toki no Naka de 6 Gaiden ~Tasogare no Kamen~
-  Suugaku♥Joshi Gakuen
- [2006-2009] Kirarin☆Revolution
- [2020-] Hello Pro Kenshuusei no Tadaima Radio Benkyouchuu!! (ハロプロ研修生の只今ラジオ勉強中！！)
Hello Pro Kenshuusei UnitsEdit
- Tomoiki Ki wo Uetai (2005–2010)
- THE Possible (2006–2007)
- Shugo Chara Egg! (2008–2010)
- S/mileage (2009–2010)
- Juice=Juice (2013)
- Kobushi Factory (2015)
- Tsubaki Factory (2015-2017)
- CHICA#TETSU (2017-2019)
- Ame no Mori Kawa Umi (2017-2019)
- Hello Pro Kenshuusei Unit (2019-present)
Acts featuring Eggs / Kenshuusei Edit
Only acts under UP-FRONT GROUP
- v-u-den (Okada Yui)
- ℃-ute (Arihara Kanna)
- THE Possible / Ciao Bella Cinquetti
- Ongaku Gatas (Korenaga Miki, Sengoku Minami, Noto Arisa, Sawada Yuri, Muto Mika, Mano Erina)
- MilkyWay (Kitahara Sayaka, Kikkawa Yuu)
- High-King (Maeda Yuuka)
- Shin Minimoni
- ZYX-α (Wada Ayaka, Ogawa Saki)
- Aa! (Saho Akari)
- HAPPY! STYLE (Noto Arisa)
- Oha Girl Maple (Ogawa Saki)
- Reborn Eleven (Sengoku Minami, Mori Saki, Fukumura Mizuki, Miyamoto Karin, Kudo Haruka)
- StylipS (Noto Arisa)
- Team Okai (all members except Okai Chisato)
- Peaberry (Wada Ayaka)
- Harvest (Takeuchi Akari)
- HI-FIN (Fukuda Kanon)
- Jurin (Miyamoto Karin)
- Sato no Akari (Katsuta Rina, Uemura Akari)
- Triplet (Takagi Sayuki, Kudo Haruka)
- Kobushi Factory
- Kamiishinaka Kana (Kanazawa Tomoko)
- Country Girls (Yamaki Risa, Inaba Manaka, Yanagawa Nanami, Funaki Musubu)
- College Cosmos (Yamaki Risa)
- Morning Musume (Linlin, Fukumura Mizuki, Kudo Haruka, Oda Sakura, Makino Maria, Haga Akane, Kaga Kaede, Yokoyama Reina)
- Mano Erina (soloist)
- ANGERME (Wada Ayaka, Maeda Yuuka, Fukuda Kanon, Ogawa Saki, Takeuchi Akari, Katsuta Rina, Kosuga Fuyuka, Murota Mizuki, Aikawa Maho, Sasaki Rikako, Kasahara Momona, Kawamura Ayano, Funaki Musubu, Hashisako Rin)
- Kikkawa Yuu (soloist)
- Kitahara Sayaka (soloist)
- Up Up Girls (Kari) (Sengoku Minami, Furukawa Konatsu, Mori Saki, Sato Ayano, Saho Akari, Sekine Azusa, Arai Manami)
- Juice=Juice (Kanazawa Tomoko, Takagi Sayuki, Otsuka Aina, Miyamoto Karin, Uemura Akari, Dambara Ruru, Yanagawa Nanami, Inaba Manaka, Matsunaga Riai)
- Hello! Project Station Dance Club (Makino Maria, Kaga Kaede, Takeuchi Akari, Sasaki Rikako, Murota Mizuki, Funaki Musubu, Miyamoto Karin, Inaba Manaka, Hamaura Ayano, Yamagishi Riko, Akiyama Mao)
- Tsubaki Factory
- UP-FRONT esports club (Furukawa Konatsu, Arai Manami, Yokoyama Reina)
- Minis? (Funaki Musubu)
- BEYOOOOONDS (Ichioka Reina, Shimakura Rika, Nishida Shiori, Eguchi Saya, Takase Kurumi, Maeda Kokoro, Yamazaki Yuhane, Okamura Minami, Kiyono Momohime)
- When Hello Pro Egg changed its name to Hello Pro Kenshuusei, it was also established that each member had to pay a monthly fee of 10,000 yen (about $100) for their lessons.
- 'HPK' is an acronym for the Kenshuusei system, while 'KSS' is an acronym for the Kenshuusei members.
- The oldest member in the current lineup is Saito Madoka at the age of 17, while the youngest is Matsubara Yulia at the age of 12.
- Wada Ayaka is the first member of Hello Pro Kenshuusei to become the leader of a main Hello! Project group and of Hello! Project.
- Fukumura Mizuki is the first former Hello Pro Kenshuusei member to become sub-leader and leader of Morning Musume. She is also the first former Hello Pro Kenshuusei member to become sub-leader of Hello! Project.
- Linlin was the first and only international student Hello Pro Kenshuusei has ever had. During her time as an egg, her name was never released and she was known as poniko (ポニ子; ponytail girl). She was also the only member to not be in a generation.
- Contrary to popular belief, Jang Da Yeon was never a member of Hello Pro Kenshuusei. She was a member of Hello Pro Korea Kenshuusei.
- In the past, Kenshuusei who auditioned for Morning Musume or ANGERME were automatically passed to the third round.
- The oldest member to join Hello Pro Kenshuusei was Hirano Tomomi at 24 years old.
- The tallest member in Hello Pro Kenshuusei is Yamada Ichigo at 169cm.
- 2005 was the only year in which no new members were added.
- 22nd generation members Hashimoto Nagisa, Horie Kizuki, Ogata Risa, Shimano Momoko, Hirose Ayaka and Inoue Rei were all initially from NICE GIRL Project! Kenshuusei.
- Ogata Risa, Hirose Ayaka and Inoue Rei were the only members to debut. Hirose Ayaka and Inoue Rei ended up debuting in Kobushi Factory in January of 2015. Ogata Risa debuted with Tsubaki Factory in April of 2015.
- Hashimoto Nagisa and Shimano Momoko both left the program in July of 2016, while Horie Kizuki left the program in August of 2018.
- Sasaki Rikako, Inaba Manaka, Takemura Miu, Onoda Saori, Horie Kizuki, Takase Kurumi, Kodama Sakiko, Kiyono Momohime, Kawamura Ayano, Okamura Minami, Yamada Ichigo, Nakayama Natsume, Goto Sayaka, Tamenaga Shion and Kubota Nanami were previously from idol groups outside of Hello! Project.
- As of November 5, 2015, with the removal of Kobushi Factory from the Kenshuusei website, there are no current members to have been trainees back when Hello Pro Kenshuusei was named Hello Pro Egg.
- The 17th generation is the first and currently the only generation with more than 2 members to have every member debut in Hello! Project (Juice=Juice has Kanazawa Tomoko, Morning Musume has Makino Maria and Kaga Kaede, Kobushi Factory has Wada Sakurako, Tsubaki Factory has Kishimoto Yumeno, and CHICA TETSU has Ichioka Reina).
- Kosuga Fuyuka is the first, and currently only member to go from being a full Hello! Project member to be "downgraded" to a Hello Pro Kenshuusei member (excluding Inaba Manaka who was appointed as mentor to Hello Pro Kenshuusei Hokkaido).
- Every main group (as of 2017) has at least one former member of Hello! Pro Kenshuusei in their roster.
- Up until, and including, the 27th gen, every generation of Hello Pro Kenshuusei has had at least one member debut into Hello! Project except 3rd gen, 6th gen, and 9th gen.
- Hello Pro Kenshuusei Members
- Hello Pro Kenshuusei Discography
- Hello Pro Kenshuusei Concerts & Events
- Hello! Project Kenshuusei Annual Test
- Hello! Project Kenshuusei Auditions
- Gallery:Hello Pro Kenshuusei
- Gallery:Hello Pro Kenshuusei Music Videos
- ↑ 「ハロプロエッグオーディション2004」オーディション結果のお知らせ
- ↑ http://web.archive.org/web/20040810181358/http://www.up-front-works.jp/info_biyuu_05.html
- ↑ "Juice=Juice 新メンバー発表スペシャル" (in Japanese). Juice=Juice (via YouTube). 2019-06-14.
- ↑ "Juice=Juice 新メンバー決定！" (in Japanese). Hello! Project. 2019-06-14.
- ↑ "【ハロ！ステ#296】アンジュルム新体制に関するお知らせ、Juice=Juice武道館ドキュメント、モーニング娘。'19 LIVE！MC：山﨑夢羽＆岡村美波" (in Japanese). Hello! Project Station (via YouTube). 2019-07-03.
- ↑ "アンジュルム 新メンバー加入決定！" (in Japanese). Hello! Project. 2019-07-03.
- ↑ "ハロプロ研修生の新体制について" (in Japanese). Hello! Project. 2019-07-11.
- ↑ "ハロプロ研修生の新体制について" (in Japanese). UP-FC. 2019-07-11.
- ↑ "「Hello! Project 研修生発表会 2019 9月」タイトル・出演者・チケット発売日決定！" (in Japanese). Hello! Project. 2019-07-26. (Archived)
- ↑ "ハロプロ研修生出演 ラジオ日本「ハロプロ研修生の只今ラジオ勉強中！！」新番組スタートのお知らせ" (in Japanese). Hello! Project. 2019-12-30.
- ↑ https://twitter.com/kenshusei_uf/status/1252115335295033345?s=21
- ↑ "Hello! Project "Kenshuusei" Audition website" (in Japanese).
- Hello Pro Kenshuusei Official Website
- Hello Pro Egg Official FC Website
- Hello! Project "Kenshuusei" Audition page
- Official YouTube Channel
- Japanese Wikipedia: ハロプロ研修生