Which Antivirus - Endpoint Security is most reliable in cooperate firm. Should have device controll funtion and password utility

All the large names with Server Management control are very good and so pick one you like.

We use Symantec Endpoint Protection everywhere.

If you're located in the U.S., this would be a good time to stay away from Kaspersky.  The government has declared Kaspersky products persona non grata (= "people without cheese shredders", I guess) and it would be well to stay off their radar.

Symantec has been slow and is still slow when it runs scans.  Things just bog down during set scan times.  Kaspersky used to be better, but they also got bloated.  I've tried ESET seems better to me.  I've run scans while people were working and they don't notice.  Cylance might be a possibility, but I haven't looked into that yet.

For the government, it makes sense to avoid Kaspersky.  For anyone with Top Secret access, it makes sense to avoid Kaspersky.  For the general regular home user, it should be fine.  For anything in between, that would depend on your company's policy.

Serialband is correct as regards Norton / Symantec.  I will go further and say that (a) I've never seen a system with Norton installed that worked right, and that (b) it is impossible to completely remove it from a system once it has been installed.  Not even the "there is no such product, sir" Norton Removal Tool will get rid of it.

But that's just my opinion.

The newest versions of Symantec Corporate and not and never were Norton. Different product. And performance is fast and efficient. We would not use it otherwise.

Recommend any of the top ten Endpoint protection suites except for Symantec. I had hundreds of samples viruses, especially polymorphic variants, that SEP misses.

Top 10 here
http://www.toptenreviews.com/software/articles/best-endpoint-protection-software/

Comparision here
https://www.g2crowd.com/categories/endpoint-protection

Symantec is in your top ten list and catches the same as the other top ten. Any individual top ten catches A while another catches B. That is normal

Read properly

Recommend any of the top ten Endpoint protection suites except for Symantec.

Any individual top ten catches A while another catches B. That is normal

I have compared them with in-the-wild samples for years and this is not true

If you've ever used something other than only Symantec, you would not recommend Symantec.

Kaspersky has always caught more of the viruses than Symantec and ahead of Symantec.

Read properly   <-- I do always read properly.

I have used other products, and continue to remain with Symantec. We know how it works, how to implement and it causes NO issues. I would not use it otherwise.

Then stop misquoting me.
In my experience, SEP broke file shares, corrupted DNS/DHCP databases and missed countless of viruses that I manually submitted.

I have mailed VirusTotal and asked them to enabled sharing of my submission history. Once they allow this, I will be more than happy to post these missed detections. Take note that these samples were missed in an environment (QAed by Symantec lvl5 consultants locally and internationally) by SEP clients then submitted to VirusTotal.

Symantec over the years has been a steaming pile of it.
I have had it miss and or detect and not able to clean many pieces of malware along with kludging up the OS to the point where it isn't usable.
Plus the uninstall programs never worked quite right.

Most major scanners are only about 90% effective at best.

My advice is to use the built in from M$ and use a unified threat management appliance of some sorts with a  AV subscription(Barracuda,Watchguard).

Most AV products are resource intensive on the endpoint and slow or break things.

When workstations start to slow or crash ,the first thing you do is look at the AV program.
Better than 50/50 chance that's where the issues are.

No one I know in person wants to recommend Symantec.  Everyone says pretty much the same thing as the majority opinion here.

If Symantec is not causing trouble, then the file scan isn't running.  That mean a portion of its funciton is turned off.

Should have device control function and password utility.

What do you mean for the above?

We have just decided in March 2017 to switch our corporate antivirus service provider from Symantec to SOPHOS.

Why?

You should be well aware of Ransomware outbreak last year. Symantec only came up with Symantec Endpoint Protection ("SEP") 14 in November 2016 which claims to be able to stop ransomware while most ransomware outbreaks have been seen worldwide from June 2016 onwards. We lost our trust with Symantec and stayed away from SEP.

Building trust takes many years but losing trust only takes a few months.

We have seen many cases of ransomware infection with SEP 12.1 installed and Symantec had never notified us the shortcomings of their SEP products and just let the users to be infected as they did not have a solution before November 2016.

We had switched to SOPHOS Advanced Endpoint Protection plus SOPHOS Intercept X.

The main reason for the switch is cloud management of all endpoints and users cannot uninstall the antivirus software even if they are the local administrators of their machines as SOPHOS makes use if a tampered protection technology as the users need another set of password unknown to them to remove the antivirus so that if ransomware wants to uninstall the antivirus software for breaking the protection, it cannot be easily done unless the SOPHOS cloud management account has been compromised too.

@Mohinesh Alvish Chand
Do you have and comments?  Any updates?