Baba had made two trust bodies to look after his ashrams and among his three grandsons, Shri Sarojmohan, Shri Abanimohan, Shri Sarosimohan appointed Shri Saroj Mohan Chattopadhyay as trustee.
In West Bengal, Ashrams at Kolkata, Bardhaman, Bondul are governed by the trust "Sri Sri Iswar Bholanatheswar Banlinga Jew" (Shri Somnath Chattopadhyay-Trustee at present), Jhalda Ashram is Baba's family's personal property. Puri Ashram was sold out long before. Varanasi Ashram is maintained by the trust, "Shebaits of the deities of Sri Sri Ishwar Akhileswar Shiv Thakur And Others" .
Videos uploaded in youtube for more details:

Vishuddhananda Bhavan (Kolkata)
Visiting Hours- Ashram remain closed most of the times. Sunday 5pm-7pm, It may be found open.
Importance-In this ashram Baba had left his mortal body.
Activities- During 14th April, first day of bengali calendar, Baba's great grandsons, Shri Somnath Chattopadhyay, Debnath Chattopadhyay usually stay in this ashram and a get together is being arranged accordingly.
Ashram Location-,88.3425511,15z/data=!4m5!3m4!1s0x0:0x42234ced50aa766!8m2!3d22.5351124!4d88.3425511

Vishuddhashram (Bardhaman)
Visiting Hours- 9am-11am, 4pm-6pm
Importance- Baba and his family members stayed in this ashram and at present great grandson Shri Debashis Chattopadhyay and wife of Shri Sarosimohan Chattopadhyay live here. Shri Gopal was first established here and later shifted to Varanasi ashram.
Activities- Trust organizes 5th Ashar, birthday celebration of Shri Durgadas and 27th Ashar, demise of Baba Visuddhanandji. Besides, Shri Sarosimohan's family celebrate Janmastami with devotees.
Ashram Location-,87.8661198,16z/data=!4m19!1m13!4m12!1m4!2m2!1d87.8740127!2d23.2414719!4e1!1m6!1m2!1s0x39f84997a38c1d7b:0x722461a688d2d214!2svishuddhashram!2m2!1d87.8670484!2d23.246597!3m4!1s0x39f84997a38c1d7b:0x722461a688d2d214!8m2!3d23.246597!4d87.8670484

Bhrigu Ashram (Bondul)
Visiting Hours- 7am-10am, 4pm-6pm
Importance-  Banglingam of Gyanganj established here, but it was misplaced in 2005, another banlingam has been worshiped at same place. Idol of Baba Vishuddhananda looks alive.
Activites- Trust arranges birthday celebration of baba on 29th falgun. First day of bengali calendar, a get together is organized by Shri Sarosimohan's family, kumari bhojon is done.
Ashram Location-,88.0361429,17z/data=!3m1!4b1!4m5!3m4!1s0x39f85327da707e11:0x511a4f08b6f418ec!8m2!3d23.3344538!4d88.0383316

Vishuddhananda Tapovan (Jhalida)
Visiting Hours- anytime
Importance- Panchmundi Asan founded by Durgadas Paramhansadev in his previous birth as Madhabananda Paramhansadev of Gyanganj at 700 years old.
Activities- Daily Puja is being carried out by Aniruddha Mukherjee, Successor of Swami Visuddhananda Paramhansadev Gyanganj Gharana. During Kali Puja, local devotees assembled here and perform puja.
Ashram Location-,85.7994057,8z/data=!4m19!1m13!4m12!1m4!2m2!1d87.8740127!2d23.2414719!4e1!1m6!1m2!1s0x39f4358386d4fe17:0x43dddd1cd4959b07!2sjhalda+tapovan+ashram!2m2!1d85.9673766!2d23.373949!3m4!1s0x39f4358386d4fe17:0x43dddd1cd4959b07!8m2!3d23.373949!4d85.9673766
Vishuddhananda Kanan (Varanasi)
Visiting Hours- 8am-10am, 4pm-6pm
Importance- Nabamundi Mahasan, Baba's Idol, Shri Gopal, Ma Durga, Banlingams
Activities- Special Puja organized on various occasions through out the year
Ashram Location-,82.9921588,17z/data=!3m1!4b1!4m11!1m5!8m4!1e2!2s101335102843520233991!3m1!1e1!3m4!1s0x398e2fd29f03c9ff:0xf25dd0eac9d3caa9!8m2!3d25.3238614!4d82.9943475

Swami Vishuddhananda Paramhansadev Gyanganj Gharana
Its a religious public welfare Trust and head quatered at Bardhaman, West Bengal at present though it's operational all over India through the board of Trustees and other associates. The organisation is currently active in odisha, Telengana, Karnataka, Maharasthra, Rajasthan, Uttar Pradesh & NCT Delhi.

Objectives :

1.       To unite all the disciples and devotees of Baba Vishuddhananda Paramhansa irrespective of any social or financial status across India and overseas under one umbrella to increase our inter connectivity and strength. Anyone who is a follower of Baba Vishuddhananda can join us.

2.      To encourage our brother disciples, sisters for daily sadhana, staying steady, focussed on the way to self development and achieve spiritual consciousness.

3.      To discuss, apply and spread teachings of Baba Vishuddhananda Paramhansa universally.

4.      To facilitate Books and  Photos of Baba Vishuddhananda.

5.      If being asked, provide financial aid to the ashrams, founded by Baba Vishuddhananda; Kolkata, Bardhaman, Bondul, Jhalida, Varanasi or any other ashram in Baba Vishuddhananda’s lineage may be considered whenever required.

6.      If being asked, anyone from our trust can attend, serve in the ashrams, founded by Baba Vishuddhananda

7.      The trust will be the official body to enrol Vishuddhananda Sewak to appoint, guide, supervise, monitor Assistant Secretary, Joint Secretary & Vishuddhananda Sarathi to each state and union territories may also terminate, Vishuddhananda Matri Sangha will also be formed.

8.      The trust will arrange Shiva ratri, Janmastami, Durgashrami, Kumari Bhojon. Chandi Yangya may also be performed for divine blessings or these may be organised creating small groups anywhere at their individual level. The trust is always available to provide necessary guidance.

9.      If our fund and work force permits, the trust would like to participate in social development. Like; free medical camp, blood donation camp, and financial help for study and medical treatment, distribution of food or cloths to the needy, education, organize skill development classes.

10.  If our fund and work force permits, the trust would also like to encourage sports, cultural events, devotee meets to rebuild our inner bonding.