Linq to SQL query to get all the descendats in c#

Question

I need a Linq to SQL for which I'll get Company name and Reporting Person's name as input.
From the below table I need to query and I need to get the values of the children and grand children and their descendants too.
Please find the sample data below:
For Ex:
if I get Company name = 'Intech' and Reporting Person's name = 'Aashiq'
I need the below values
 
'Vignesh','Aashiq'
'KK','Aashiq'
'Dhanesh','Aashiq'
'Sanjeev','KK'
'Periyannan','Antony'
'Karthi','Antony'
'Prakash','Dhanesh'
'XXXX', 'Prakash'
'YYYY', 'Prakash'
 
Please help
 
CREATE TABLE Table1
(
CompanyName VARCHAR(20),
EmployeeName VARCHAR(20),
ReportingPersonName VARCHAR(20)
)
 
 
insert into Table1 Select ' Intech','Prem','Gandhi'
insert into Table1 Select ' Intech','JK', 'Gandhi'
insert into Table1 Select ' Intech','Gobind','Prem'
insert into Table1 Select ' Intech','KP','Prem'
insert into Table1 Select ' Intech','Venkat','Goind'
insert into Table1 Select ' Intech','Niyam','Goind'
insert into Table1 Select ' Intech','Aashiq','KP'
insert into Table1 Select ' Intech','James','KP'
insert into Table1 Select ' Intech','Linu','Venkat'
insert into Table1 Select ' Intech','Mathi','Niyam'
insert into Table1 Select ' Intech','Karthik','Niyam'
insert into Table1 Select ' Intech','Vignesh','Aashiq'
insert into Table1 Select ' Intech','KK','Aashiq'
insert into Table1 Select ' Intech','Antony','James'
insert into Table1 Select ' Intech','Dhanesh','Aashiq'
insert into Table1 Select ' Intech','Anitha','Linu'
insert into Table1 Select ' Intech','Manu','Mathi'
insert into Table1 Select ' Intech','Babu','Mathi'
insert into Table1 Select ' Intech','Kavya','Karthik'
insert into Table1 Select ' Intech','Subbu','Karthik'
insert into Table1 Select ' Intech','Sanjeev','KK'
insert into Table1 Select ' Intech','Periyannan','Antony'
insert into Table1 Select ' Intech','Karthi','Antony'
insert into Table1 Select ' Intech','Prakash','Dhanesh'
insert into Table1 Select ' Intech','XXXX', 'Prakash'

insert into Table1 Select ' Intech','YYYY', 'Prakash'