It can be easy to find work-from-home job listings, but might be much harder to unearth legitimate opportunities with established companies. If you're interested in exploring the work-from-home world, here are six employers with Atlanta openings posted at Monster.com that might be worth investigating.

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48 Factoring, Inc. – Hiring lead generation specialists and telemarketers

48 Factoring Inc. is a financial services company that assesses funding risk and creates solutions to help small businesses grow. Its unique Factoring 2.0™ financial product is tailored to small, fast-growing companies in need of working capital. As a result, 48 Factoring markets its services directly to small-business owners. Incorporated in March 2014 and headquartered in Wayne, Pa., the company is led by experienced managers and staff with decades of experience in the field.

Manpower – Hiring appointment setters and telemarketers

With offices in 80 countries throughout the world, Manpower claims to be the global leader in contingent and permanent staffing, providing organizations of all sizes with a wide range of staffing solutions.

Manpower works to understand staffing trends and turns to its employees to match the right individual to the right job with fast, better business results. The company currently is hiring individuals to make outbound telemarketing calls to small to midsize companies and try to set up appointments.

Sutherland Global Services – Hiring sales support representatives

As the nation's third-largest cable and broadband company, Sutherland helps clients with both back-office and customer front-office services that support every aspect of the customer relationship. The company has been helping clients maximize customer lifetime value and increase competitive advantage since being established in 1986.

Sutherland focuses on boosting a client's bottom line by reducing costs and implementing business performance improvements.

Sykes Enterprises, Inc. – Hiring customer service representatives

Sykes Enterprises specializes in providing comprehensive customer contact management solutions and services to business clients. They work with companies in the communications, financial services, technology, health care, and transportation and leisure industries.

Employees in its American region provide services that include customer assistance; health care and roadside assistance; technical support; and corporate help desk services. They communicate with customers through phone, email, social media, text messaging and chat.

Sykes, which has been in business more than 35 years, says its employees work as "brand advocates" for its clients.

The Monteith Group – Hiring field agents

The Monteith Group was established with the goal of helping bring balance to the professional and personal lives of independent insurance agents and agency builders across the country. Its direct-mail lead program gives insurance agents the "foot in the door" they often need to connect with people who might want their services. The company's philosophy is that if agents make the profit they desire, they will continue to grow personally and professionally with Monteiith and the parent company, Symmetry Financial Group.

The SFG VanderVaate Agency – Hiring life insurance agents and field underwriters

The SFG VanderVaate Agency specializes in mortgage protection insurance. It offers term policies, often with a return of premium, so clients get back every penny they've ever paid for insurance. Agents are also able to offer final expense, whole life, indexed universal life and annuities. SFG combines its lead program with the business values of trust, reliability and integrity to help agents reach their short- and long-term personal goals and objectives.

As with any job opportunity, do your research before applying for positions or sharing personal information.