Our directory features the top BPO companies in the USA, evaluated using five ranking criteria, 12 expert reviewers, and 263+ verified client reviews, giving you a reliable way to choose the best BPO provider.

Select the Best BPO Company in the USA

2 Companies - Rankings updated: April 24, 2026

DesignRush evaluates the BPO companies listed based on expertise, credentials, and client satisfaction ratings, using objective data and verified reviews. Some placements are sponsored.

United States ×
  • Grow Your Sales Pipeline With Human + AI

    Founded in 2004 and headquartered in Encino, California, Callbox Inc. is a global leader in outsourced B2B lead generation, appointment setting, and event marketing. With over 20 years of experience and a multilingual team servicing APAC, LATAM, and EMEA, the agency supports medium-sized businesses to  [... see all Callbox reviews ]
    Location
    Los Angeles, California
    Number of Employees
    500 - 999
    Portfolios Count
    100 Projects Listed

    Callbox Services

    • Managed Services
    • Cloud Consulting
    • Digital Marketing
    • ERP Consulting
    • CRM Consulting
    • BPO
    • Event Marketing
    • SEO
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts

    Clients and Projects

    View Full Portfolio
    • Callbox Telemarketing Boosts Online Advertising
      Telemarketing Project for Media & Communications Company Callbox Telemarketing Boosts Online Advertising
    • Software Testing Firm Brings Potential Change to More Customers via ABM Campaign
      B2B Sales Outsourcing Project for Software & IT Services Company Software Testing Firm Brings Potential Change to More Customers via ABM Campaign
    • Telecom Firms Campaign Enters Next Phase, Grows Reach in New Segments
      Telecommunications Consulting Project for Media & Communications Company Telecom Firms Campaign Enters Next Phase, Grows Reach in New Segments
    • RPA Firm Found New Distributors with Callbox Lead Generation Campaign
      B2B Sales Outsourcing Project for Manufacturing Company RPA Firm Found New Distributors with Callbox Lead Generation Campaign
    Comprehensive analysis done by DesignRush Agency Experts.
    • Amazon
    • Google
    • Microsoft
    • Workday
    • SAP
    • Telefonica
    • Zendesk
    • opentext
    • Yandex
    • NEC
    Data sourced from the agency's DesignRush profile

    Callbox Reviews & Testimonials

    • Joachim Fong
      Joachim Fong Regional Marketing Specialist at Malvern Panalytical
      5.0

      Lead Generation Review from Joachim Fong

      For the past year, Callbox has provided us with satisfactory lead generating and lead nurturing services. They were instrumental in securing attendees for our events, scheduling client appointments and facilitating the sale of one of our benchtop systems. Their professionalism in conveying our product attributes and valued solutions to prospective customers has brought us results.

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    • Jonathan Anderson
      Jonathan Anderson Owner at ABS
      5.0

      Lead Generation Review from Jonathan Anderson

      I’ve used Callbox now for about four months for my internet marketing company. The first two months they did not pay off. However with some additional training on my part, they started to close a higher percentage of my target audience. They’re really smart, nice and are really working hard to keep my business. My dedicated team keeps me up-to-date through frequent communications. My R.O.I is getting stronger and my CPA is starting to drop.

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    • Ted Calvin
      Ted Calvin Co-Founder & Vice President at Charted Energy
      5.0

      Appointment Setting Review from Ted Calvin

      Charted Energy has enjoyed a productive relationship with Callbox. They have done a great job of helping us target prospects within the markets we serve as well as qualify leads and set up appointments with decision-makers. Callbox has generally exceeded the number of leads per week we expected and provides a good value by enabling our inside sales team.

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    Reviews verified by DesignRush and sourced from the agency's profile
  • Offshore Online Data Entry

    Data entry outsourcing or multitasking the internal methods; is one of the aspects every organization across the globe has to embrace with open arms, to keep pace with the cutthroat competition, while dealing with tons of data that needs to be digitized – accurately and efficiently.  [... view Offshore Online profile ]
    Location
    Bergenfield, New Jersey
    Number of Employees
    50 - 99
    Average Hourly Rate
    $10/hr
    Minimal Budget
    $10,000 - $25,000

    Offshore Online Services

    • BPO
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • IT Industry
    • Retail Industry
    • Financial Industry
    Data sourced from the agency's DesignRush profile

BPO Services FAQs

What services do BPO companies in the USA typically provide?

US BPO providers support businesses across front-office, back-office, and operational functions, including: 

  • Customer support and call center services across phone, chat, and email. 
  • Back-office services such as data entry, billing, payroll, and document processing. 
  • Finance and accounting support, including bookkeeping, AP and AR, and reporting. 
  • Human resources outsourcing covering recruitment support, onboarding, and HR administration. 
  • IT and technical support, including help desk and application support. 
  • Sales and lead generation service,s such as appointment setting and CRM management. 
  • Marketing operations support, including campaign execution and analytics. 
  • Industry-specific services for healthcare, legal, and financial operations. 

How much does it cost to hire a BPO company in the USA?

Based on DesignRush portfolio data, hiring a BPO company in the USA costs between $90 and $100 per hour, depending on service type, specialization, and delivery model. 

Project-based pricing: 

  • Small projects: $20,000 to $25,000 for short-term or limited-scope support, usually 2 to 6 months. 
  • Mid-range contracts: $25,000 to $100,000 for ongoing back office, customer support, or healthcare billing over 6 to 18 months. 
  • Large-scale programs: $100,000 to $500,000+ for long-term, multi-team operations such as customer service, sales support, or medical billing. 
  • Enterprise-level BPO: $1 million+ annually for high-volume, regulated, or fully managed operations. 

In practice, most US BPO contracts fall between $25,000 and $250,000, with pricing driven by workload volume, service complexity, and contract duration. 

Which industries most commonly use BPO services in the US?

BPO companies most commonly serve: 

  • Information technology, with 77% of organizations outsourcing IT infrastructure and 72% outsourcing application and software development. 
  • Healthcare and medical billing, including claims processing, coding, and patient support. 
  • Finance and accounting, where 54% outsource finance functions, and 60% outsource tax-related processes. 
  • Legal services, with 68% of organizations are outsourcing legal and compliance tasks. 
  • Customer service and helpdesk operations, supported by 65% outsourcing of helpdesk and end user computing. 
  • Human resources, with 57% outsourcing HR functions such as payroll and benefits administration. 
  • Data and analytics are outsourced by 72% of organizations to improve reporting and decision-making. 
  • Retail, ecommerce, and back-office operations, including order management, procurement at 49%, and supply chain support at 52%. 

What outsourcing models do US-based companies typically offer?

They typically offer these outsourcing models: 

  • Onshore outsourcing with US-based teams. 
  • Nearshore outsourcing using teams in nearby regions. 
  • Offshore outsourcing for cost-sensitive, high-volume work. 
  • Dedicated team models for long-term operations. 
  • Project-based outsourcing for fixed scope work. 
  • Hybrid models combining multiple delivery locations and pricing structures. 

How do businesses measure ROI when outsourcing to a BPO partner?

Businesses measure performance and ROI by tracking: 

  • Service level agreements such as response time, resolution time, and accuracy. 
  • Cost savings compared to in-house staffing and operations. 
  • Productivity metrics like volume handled per agent or per hour. 
  • Quality scores including error rates, compliance, and customer satisfaction. 
  • Revenue impact for sales, retention, or collections focused programs. 
  • Regular reporting, benchmarking, and quarterly performance reviews. 

About The Author and Expert Reviewer

Bojana Trajcheva is a seasoned content editor and innovation researcher with extensive experience in the tech and marketing industries. Formerly Editor-in-Chief at Studentsko Eho, she developed a strong foundation in content creation and editorial leadership. Bojana further honed her skills in senior innovation research roles and now brings this combined expertise to her work as an editor at DesignRush.

Gianluca Ferruggia is a seasoned digital marketer with over ten years of experience. Starting with PPC, he effectively expanded his expertise to include SEO, sales, business development, and product. He is currently the General Manager at DesignRush, where he leads a team of over 100 professionals, oversees business operations, and develops strategies that achieve business goals. In just a few years, he grew the company's agency network to over 30,000, making it one of the leading B2B marketplaces that connect businesses with agencies.