Vista chief executive Murray Holdaway said the entry into the indices could boost the company's profile, while also getting the firm on the radar of index-tracking fund managers.
"The media tends to cover the NZX 50 companies a lot more," he said.
Holdaway said Vista's market capitalisation - which is sitting at just over $530 million today - had been large enough to enter the NZX 50 for some time.
But the firm's tightly-held share register had made it difficult for the company to meet the index's liquidity requirements.
A management sell-down in March - when 20 major shareholders, including Holdaway, sold almost 26 per cent of the company - had helped Vista pass the liquidity test, Holdaway said.
He said the shares were still tightly held by a number of fund managers.
"But there has been a reasonable amount of trading by retail investors [since the sell-down]."
Vista posted an interim profit of $2.3m last month, more than double the figure it reported for the same period a year earlier.
That was despite its bottom-line being impacted by a $782,000 foreign exchange loss that resulted from post-Brexit currency market volatility.
The company has made a number of acquisitions since its sharemarket float, including a 50 per cent stake in UK-based marketing firm Powster and a half-share in Dutch software provider Share Dimension.
Holdaway said the company was currently working on major software installations in South Africa and Denmark.
Vista's management software is used for a range of applications including online ticket booking, food and beverage sales and staff rostering.
Its shares, which have gained 27 per cent over the past year, recently traded at $6.61.
