Aviva, Zurich and Scottish Widows have all ruled out buying up more distribution.
Last week, Money Marketing revealed Skandia is in talks with Caerus over acquiring a stake in the business.
It is understood Caerus is also talking to a number of other providers over similar deals, while looking to retain a majority shareholding.
Aviva currently has a 20 per cent stake in Tenet Group and Zurich has a 25 per cent stake in Openwork.
Both providers say they have no intentions of taking further stakes in distribution firms.
Money Marketing understands Scottish Widows, which does not have any stakes in distribution firms, does not intend to enter the space.
Aegon, which owns Positive Solutions and Origen and has a 20 per cent stake in Tenet, declined to comment on whether it plans to buy up more distribution.
A spokesman says: “We are committed to our deals with distribution firms as they stand.”
In November last year, Money Marketing revealed an email between Aegon and Caerus that gave details of £2m to be paid over a five-year period for “sales and marketing activity to support our partnership”. Aegon and Caerus have a single-tie pension arrangement in place.
Legal and General and Resolution, which owns Sesame, a 5.9 per cent stake in Lighthouse and a stake in Intrinsic, declined to comment on their future plans.
Forty Two Wealth Management partner Alan Dick says: “I am naturally sceptical about providers owning advisory businesses and I struggle to see how clients’ interests can be at the forefront of deals like that.”