I cannot give Individual breakdowns of insurance costs for every operator all I can do is rely on media. If a small operator wants to set up they have to have SECURE PREMISES. That is a given fact surely?
I did say there is room for a small operator to do niche routes but the era of insane competition is overfor reasons I outlined.
I cannot physically cover the whole UK in detail.,nor can any enthusiast onlmy own patch as it were.
Recently Peoplesbus have sold out to Stagecoach. HTL have vandalism issues. If a small firm has buses put out of action. it's not a sustainable situation. Avon Buses on the Wirral closed because they couldn't retain staff among other issues. Jason Yobbo and his mates are not going to refrain from lobbing bricks just because the bus is run by a small timer.
HTL has had to install software to warn against fraudulent whiplash claims Not free of charge. and another issue small firms have to face.
An enthusiast cannot provide the degree of Information as the likes of routeone or Bus and Coach Professional. And finally I think it's ridiculous to expect complicated links such as "www/// etc" to be provided.
This is, I'm afraid, utter bilge.
Smaller operators perform an essential role in the UK bus industry...as they always have done. As in regulated days, there were great tracts of the country that were left to smaller firms whose overheads were lower and so could run profitably. In fact, in the early 1970s, a number of National Bus Companies withdrew from areas such as North Cornwall, South Staffs and West Wales, and it was left to smaller firms to fill the void. However, there were still a number of long-established independents even in metropolitan areas despite avowed policies by West Yorkshire and South Yorkshire PTEs to buy them up. Post 1986, there were a great many who entered the local bus market whilst traditional businesses changed and developed. Some over extended themselves, some didn't. Some sold out. That is what happens in business; the only problem at the moment is that it is so challenging that, aside from firms like Vectare, it's not the most attractive industry to get involved with. However, small firms perform a vital role in the bus industry ecosystem, and especially in recent years as large operators have retrenched and cut operations.
As regards, the other comments, site security is required for every operator, irrespective of size. In the past, many a large operator would have vehicles simply parked up in a public car park as an outbase. More recently, the typical big operator outstation has been a secure compound (no different to a small operator) whilst depots have moved from being large buildings (with high business rates and utilities costs) to modern, smaller workshops with extensive open parking. Don't think that large operators don't have issues with anti-social behaviour both on buses, en route and at their premises.
First Eastern Counties closed their outstations following an arson attack at Stalham. Stagecoach had many vehicles damaged after a Christmas Day attack resulted in vehicles being written off. Arriva's predecessor in Darlington had a similar attack after kids broke into the depot by hiding and waiting for the staff to leave, and then started playing dodgems. Operators have lost vehicles due to fires being started onboard - First Glasgow has had a number including a virtually new decker written off, and First Bradford has had a similar event the other week.
Avon Buses closed down for a number of reasons. Insurance and fuel costs, and abuse of the MyTicket scheme basically meant they weren't recovering their costs - all detailed here
https://www.route-one.net/news/avon..., Wirral-based Avon Buses,the loss of 30 jobs.
As regards HTL (the name of a Merseyside operator
@GusB 
), that they have had to get software to guard against whiplash claims. Well, that's what most operators have had to do in order to deal with fraudulent insurance claims so it's a cost for any operator. There were some famous instances with Arriva where folks tried the no win, no fee path to untold riches.
It seems that you've a hang up on small operators but without them, many routes would be lost.