Starwood’s Aloft brand — hotels designed with the younger generation of business travelers in mind — has just passed the 100-property mark, and two of its new hotels are in key business markets: Silicon Valley in California, and Wall Street in New York City; meanwhile, the upscale Sixty Hotels group cut the ribbon on a Miami location, Hyatt opened a pair of properties in Charleston, S.C., and InterContinental Hotels Group added a new Indigo in Pittsburgh.

In California, Starwood’s newest Aloft property is in Santa Clara just a few miles from Mineta San Jose Airport, off Highway 237 in the America Center corporate campus. It’s just down the street from Yahoo!’s headquarters and close to Intel’s offices. The 175-room Aloft has an outdoor pool, 24-hour gym, grab-and-go gourmet food and beverage market and signature cocktail bar.  Like other Alofts, it offers keyless room entry for guests. Rates start around $265.

That hotel’s new sister property in New York City is the 125-room Aloft Manhattan Downtown-Financial District, the first Aloft in lower Manhattan (others are in Harlem and Brooklyn). Located on Ann Street, it’s a short walk from the New York Stock Exchange and One World Trade Center, as well as companies like American Express and Goldman Sachs. Like other Alofts, it has a 24-hour gym, W XYZ bar, re:mix lounge and grab-and-go food and beverage area. Rates range from $200-$400.

Sixty Hotels, an upscale lodging group with properties in Beverly Hills and New York City, has added a South Florida location called Nautilus, a SIXTY Hotel. The 250-room Miami Beach property is a remake of the old 1950s-era Nautilus Hotel at 1825 Collins Avenue, designed by Morris Lapidus and stretching from Collins Avenue to the beach. It has 250 rooms, a  signature restaurant, and a spa and pool (as well as “Bolivian hammocks amongst the palm trees”). Opening rates start at $195 a night.

Hyatt Hotels has cut the ribbon on a pair of properties in the heart of Charleston, S.C. — the Hyatt Place and Hyatt House Charleston/Historic District. The Hyatt Place has 191 rooms, free Wi-Fi throughout, free hot breakfast, coffee/cocktail bar, 24/7 venue for fresh meals and a 24-hour gym. The Hyatt House offers 113 apartment-style kitchen suites, also with free Wi-Fi, a bar, a market, free hot breakfast and a common lounge for socializing. Average daily rates are $249 at the Hyatt Place, $269 at the Hyatt House.

The newest property in InterContinental Hotel Group’s Indigo brand is the Hotel Indigo Pittsburgh East Liberty, at 123 North Highland Avenue in a neighborhood known for a thriving cultural, shopping and historic vibe. The hotel is an “adaptive reuse and new build property comprised of four buildings representing four different eras of Pittsburgh’s history,” the company said, including the former Governor Hotel. The boutique property’s guest rooms recall “the majestic theater era,” and the hotel has a restaurant/bar called Wallace’s TapRoom. Rates start at $180.

NOTE: Be sure to click here to see all recent TravelSkills posts about: New hotel openings + Cathay Pacific’s new lounge + Joining PreCheck gets easier + Air India’s San Francisco plans + New perks from United, Virgin America