BigCommerce, an e-commerce technology platform vendor, announced today it has raised $50 million in a Series D funding round led by SoftBank Capital. Telstra Ventures, American Express Co., General Catalyst and Revolution Growth also provided capital. Steve Murray, a partner at SoftBank Capital, will join the BigCommerce board.

“BigCommerce’s easy-to-use, cloud-based platform allows businesses of all sizes to rapidly build and deploy full-service ecommerce and m-commerce tools to grow revenues,” says Murray.

BigCommerce launched in 2009 and provides more than 55,000 small- and mid-sized retailers with such services as order processing, analytics, mobile commerce and marketing, the company says. BigCommerce provides an Internet-hosted e-commerce platform that starts at $25 per month. It also offers consulting services to help novice e-retailers get started with the technology, and a marketplace of feature extensions that customers may purchase and add to their platforms at will.

According to data found at Top500Guide.com, BigCommerce serves one retailer in the Internet Retailer Top 500 Guide (electronic cigarette retailer V2Cigs.com, No. 348) and four retailers in the Second 500 Guide (U.S. Patriot, No. 667; The Elegant Office, No. 960; KidSafe Inc., No. 992; and 33-Off.com, No. 994). Late last month, BigCommerce reported that gross merchandise volume per store was 25% higher during Q3 2014 than during Q3 2013 for its retail clients.

BigCommerce did not say how it intends to use the new capital. In 2013, the vendor raised $40 million in capital. The company’s corporate headquarters and engineering teams are based in Sydney, Australia. Its sales, marketing and support teams are based in Austin, TX.