Business leaders need to be "re-engaged" with pensions to increase uptake, according to Geoff Buck from Killik and Co.
Mr Buck, head of pensions administration at Killik and Co, said that negative connotations remained around pension savings.
When asked how he would combat this, Mr Buck suggested that senior management and finance directors should actively pay in to their pensions and encourage their staff to do the same.
He said: "If the CEO and the finance director are disenfranchised then that will feed down the food chain and that is disappointing. We need to re-engage the business leaders to get the message down to the workforce.
"Isas are popular because they offer instant access and people like that rather than something long-term."
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Mr Buck said Sipp assets under administration were increasing year on year at Killik and Co and it now had 3,500 Sipp accounts.
He said: "Our biggest problem is reacting to the constant tinkering of regulators and the Government and keeping up with the constant changes to tax relief and the lifetime allowance. There's negative connotations to pension savings. That's why it's so pleasing for us to see assets growing.
"We have a unique point in that we offer the stockbroking service and we can manage their personal investments at the same time and offer a combined service."