Two of the biggest website performance management companies to serve retailers in the Internet Retailer Top 500 Guide have become one. Boston-based Dynatrace said Wednesday it is absorbing Keynote, based in San Mateo, Calif., creating a company with more than 7,500 customers and 1,750 employees. Terms were not disclosed, but both companies are owned by private equity firm Thoma Bravo, which has offices in Chicago and San Francisco.

Before the merger, Dynatrace and Keynote were among the top providers of web performance management services for retailers in the Internet Retailer 2015 Top 500 Guide, along with New Relic and AlertSite. Keynote had 46 Top 500 clients, while Dynatrace led with 126, which includes retailers that listed Gomez and Compuware as suppliers. Dynatrace in December was spun out of Compuware, which had acquired Dynatrace in 2011 and Gomez in 2009.

The combined company will be called Dynatrace, but it will keep the Keynote brand to “identify the Keynote products for as long as appropriate,” said Nicolas Robbe, Dynatrace chief marketing officer. Post-merger, it will have 153 retail clients in the Top 500 Guide because some of the retailers used both services. Customers include Wal-Mart Stores Inc., No. 3 in the Top 500 Guide, Nike Inc. (No. 61) and Walt Disney Co. (No. 86).

The company did not rule out job cuts, saying there are are some back-office operational redundancies to work through, but Robbe said, “We expect minimal, if any, impact on customer-facing teams. The combined entity will exceed 1,750 people and will be the largest APM (application performance management) company in the world. We are excited about the new talents that Keynote brings, and continue to hire and grow our business.”

The company said it has no plans to change pricing, licensing or services. Keynote customers gain immediate access to Dynatrace cloud services, advanced third-party analytics and its PurePath technology, which tracks transaction details. Dynatrace clients will receive access to Keynote’s exclusive consulting service.

Combined with Keynote, Dynatrace performs 2 billion performance measurements a day across the world, Robbe said. “We have deep insight into the state of the Internet. We get a granularity, so we get an accurate representation of what customers will experience online from any location on earth,” he said.

“Both companies have built up fairly good relationships in retail sector; it’s a primary sector and still a key segment for us,” said Howard Wilson, Keynote’s former chief commercial officer and executive vice president, who will be general manager of the cloud-based services for the combined company. “If you look at spectrum of customers—retail, travel and hospitality, media—the conversation has shifted from tech evaluation to a much stronger focus on business outcomes. Is performance affecting conversions? Is my bounce rate related to (site) performance? There are rules around page load times — 7 seconds, 5 seconds, 3—which is interesting and good to know, but if I’m Nordstrom and Macy’s is performing better than I am, that’s what matters.”