Docker Inc. has scored a vast majority of the $75 million in new funding it’s looking to collect through a private equity offering. The latest funding round comes under the shadow of an evolving container market.

According to a Securities and Exchange Commission filing, and first reported by the Wall Street Journal, Docker Inc. has raised nearly $62 million since beginning the equity funding round on Sept. 25. The filing shows 30 investors have so far participated in the equity round.

Bloomberg reported in August that Docker Inc. was moving on securing the new funding. If achieved, the funding round is set to push the company’s value to as much as $1.3 billion.

The report noted some of the new funds would target the company’s enterprise-focused sales and marketing teams.

Docker Inc.’s last significant funding round was in 2015, when the firm pulled in $95 million in Series D financing. That round came quick on the heels of a Series C round of $40 million, and a Series B round of $15 million.

Past investors have included Sequoia Capital, Greylock Partners, Insight Venture Partners, Benchmark, Trinity Ventures, and Jerry Yang/AME Cloud Ventures.

Docker Inc.’s main claim to fame is its Docker container platform, which launched in 2013. The Linux-based platform ushered in the current container craze. From a business model perspective, the company offers various managed services designed to ease the use of the Docker platform.

Docker Inc. recently updated its Enterprise Edition product with broader system support, security management, and automation.

Docker Inc., in May, announced a leadership change with industry veteran Steve Singh replacing Ben Golub as CEO. At the time, Singh’s stated focus was on scaling the firm’s “business, brand, and continued innovation serving Docker’s customers, partners, and community.”

Singh had served as chairman of the board at the company as well as CEO of Concur.

Some container vendors have recently noted shifting demand from enterprise customers away from Docker and toward Kubernetes.

Rancher Labs, which builds open source software to deploy and manage containers in production, last month said it was replacing Docker with Kubernetes as the basis for its Rancher 2.0 container management platform.

“We were hearing from customers that Kubernetes support was what they wanted,” said Sheng Liang, CEO and co-founder of Rancher Labs. “This request was a lot more than what we were hearing for Mesos or [Docker] Swarm.”

Liang did acknowledge that many enterprises had become familiar with working in the Docker environment.

“In large enterprises, many are still more used to Docker, and Docker is very simple,” Liang said.

Some financial analysts have questioned Docker Inc.'s ability to remain an independent entity.

“Despite its impressive name recognition and presence within the container industry, Docker’s long-term financial success – at least as an independent company – is hardly a fait accompli,” noted Cowen & Company in a report earlier this year. “We do believe that Docker will have to work hard in order to overcome its smaller footprint with enterprise [companies] particularly given the growing influence of public cloud vendors. As such, we expect that Docker will continue to leverage its partnerships with large IT vendors, such as [Microsoft] and Oracle.”