With a customer base of more than 6,000 companies,  PandaDoc (Quote Roller Inc.) is one of the fastest-rising players in document management.

The San Francisco-based startup plans to accelerate its momentum with $15 million in new funding announced today. Rembrandt Venture Partners provided the biggest portion of the financing, while the rest came from a group that included marketing automation giant HubSpot Inc. and Microsoft Corp.’s private equity arm. Their investment brings PandaDoc’s total raised to $21 million.

The reason why the startup has drawn so much attention is its centralized approach to handling documents. PandaDoc offers a cloud-based platform that provides the ability to manage the forms, contracts and other files that account for the bulk of the administrative work at a business all in one place.

The first stop for most users is the platform’s built-in text editor. According to PandaDoc, the tool comes with readymade electronic signature fields, checkboxes and other special features that can be embedded into a document to streamline handling. Companies also have the option of creating custom elements to help workers quickly fill in more complicated parts.

Once a user has drafted a document, they can share the draft with the appropriate contacts using PandaDoc built-in collaboration mechanism. The feature provides the ability to set up automated workflows for distributing files to colleagues, customers and other relevant parties. It’s available alongside a set of high-level controls designed to help managers ensure that everything flows smoothly.

PandaDoc also offers a number of niche document management capabilities designed to address department-specific requirements. Most of them are geared towards salespeople and human resources personnel, but PandaDoc can be expected to expand the platform’s focus as part of its growth efforts. It will certainly be important for the startup’s ongoing push to court large enterprises, which usually have much more extensive demands than the small businesses that currently make up the bulk of its user base.

Image: PandaDoc