Top BPO Companies in California, US
Goodfirms has reviewed 371 BPO Companies in California, US as of September 2026. The top-ranked firm is Hugo (4.9 stars, 16 verified reviews, < $25/hr, founded 2017, San Francisco). Across the category, the median hourly rate is $25, median client rating is 4.8, and 32% of firms employ 50+ members. Explore the vetted BPO Companies in California, US below, compare their strengths, and connect with the provider best suited to your requirements.
Do you want to focus more on the front office tasks of your business in California? Then you can partner with California BPO services and handover the back office tasks to them. Once you enter into a contract with the BPO service providers in California, they will take care of everything. The BPO companies in California are like your one-stop solution to handle your non-primary business activities. Do you need some assistance in hunting for the best names in the industry? We got you in that case! Quickly skim through the below-mentioned list of top-notch business process outsourcing companies in California.
Goodfirms has verified 371 BPO Companies in California, US - part of 6,164+ BPO Companies in the World, each passing Goodfirms' 4-step verification process (background check, client interviews, portfolio audit, ongoing quality review). Listings marked "Sponsored" are agencies that pay for premium placement - sponsorship does not affect star ratings or review content.
Top 10 at Glance
Compare the highest-ranked firms first side by side.
List of California BPO companies | BPO firms in California
Sponsored
BillingParadise started in 2004 as a small medical billing company with big dreams. We wanted to enable group practices, hospitals, clinics, and independent medical practice practices to run a healthcare organization without the pressure of working for a certain bottom-line. BillingParadise pushes the envelope to deliver revenue cycle management services that empower medical practices to ... read BillingParadise reviews & insights
< $25/hr250 - 9992004Orange County, United StatesOur Medical Billing Services Will Improve Your Cash Flow! Established in 2001, Medclaims Billing Services is a high-tech medical billing services company with around 20 years of experience in the Health Care, Business Consulting and Information Technology industries. With clients over a wide geographical area, Medclaims is a professional billing services organization committed to exceed ... read Creosen reviews & insights
NA2 - 9Vista, United StatesTechnology Mindz is a cutting-edge IT service and solution provider that empowers enterprises to reshape their businesses in the digital era. With over a decade of expertise and innovation in design, development, and support, we serve as a comprehensive solution for enterprises seeking to overcome ... read Technology Mindz reviews & insights
$25 - $49/hr50 - 2492012Cupertino, United StatesThe IT services provided by Technology Mindz are of a high standard.
- Web developerWelcome to App Maestros! We are excited to see you on our profile. We Build Affordable & Rapid Mobile Application Design. AppMestros is a leading digital technology service provider and consulting company enabling clients to create and execute strategies for digital transformation. We craft innovative, ... read App Maestros reviews & insights
$50 - $99/hr1,000 - 9,9992017Berkeley, United StatesThe app looked great and worked exactly how we wanted, with no bugs or delays.
- Brand ManagementUpcall is the human-powered engagement platform & API. Upcall provides U.S sales professionals on demand, enabling businesses to trigger human phone calls within seconds. Upcall is fast, scalable and cost a friction of a full-time sales rep. Upcall engages, qualifies and converts your leads into opportunities.
< $25/hr10 - 492016San Francisco, United StatesAcelerar is one of the leading BPO outsourcing companies in India and a global brand offering reliable and result-driven BPO outsourcing solutions for overseas clients.With years of establishment in global market, Acelerar represents an all-embracing definition of a BPO Company having vast pool of talent resource, industry-recognized expertise, organizational efficiency and a large number of ... read Acelerar Technologies reviews & insights
< $25/hr50 - 2492010Campbell, United StatesOmni Agent Solutions is the reinvention of the case administration service provider. The original Claims and Noticing Agent, Omni, has been at the forefront of case administration since 1970. Today, Omni's professional services and advanced new technology driven solutions are specifically focused on leveraging data and enhancing access for seamless integration with case professionals to ... read Omni Agent Solutions reviews & insights
< $25/hr2 - 9Woodland Hills, United StatesAlert Communications is a 45,000 square foot, 300 person legal only call center located in Camarillo, CA. Founded in 1965, Alert services thousands of attorneys and hundreds of legal marketing agencies across the nation. We have completed millions of new client intakes and helped with retainer e-signing for thousands of new clients with law firms ... read Alert Communications reviews & insights
$100 - $149/hr250 - 9991965Camarillo, United StatesWelcome to LaBell Exchange, one of the nation's leading providers of call center services. Established in 1975, LaBell Exchange is known for our commitment to personalized service and customer satisfaction. We understand running a business can be challenging, which is why it is our mission to help your business operate more efficiently by providing you ... read LaBell Exchange reviews & insights
< $25/hr2 - 9Santa Ana, United StatesCall24 Communications Inc offers 24/7 Answering Service and Call Center Solutions for the greater San Francisco Bay Area. Our dependable 24-hour Call Center operations have the capability and capacity to increase sales, enhance customer loyalty, and reduce costs for small, mid-size, and enterprise-level companies. Our proven, successful Call Center methodology begins by gaining a clear ... read Call24 Communications reviews & insights
$50 - $99/hr50 - 2491985Pleasant Hill, United StatesLuth Research has been a market research leader since 1977 and continues to make groundbreaking advancements in next generation customer intelligence. Powered by ZQ Intelligence™ which passively captures the digital journeys of consumers across all devices, Luth creates the innovative technology and research methods required for businesses to thrive. From survey research to passively tracking ... read Luth Research reviews & insights
$50 - $99/hr250 - 9991977San Diego, United StatesNexsales is a global demand generation firm that has helped B2B marketing firms achieve repeatable revenue growth through best-in-class outbound and inbound B2B lead generation solutions. Nexsales partners with B2B marketing firms to help them meet their desired ROI and revenue targets by supporting their lead generation campaigns with a high quality source of role-based ... read Nexsales reviews & insights
NA2 - 9Cupertino, United StatesDeepCleer helps digital platforms and generative AI companies protect users, enforce policy, and scale safely. Our AI-native, API-first Trust & Safety platform combines real-time, multimodal content moderation with AI guardrails across user content, prompts, and model outputs. DeepCleer analyzes text, images, audio, video, and live streams, returning fine-grained risk labels and confidence signals that teams ... read DeepCleer reviews & insights
$50 - $99/hr250 - 9992019San Jose, United StatesUsing AI Tools
Chatgpt
CodeCureAI – Trusted Medical Billing Company in the USACodeCureAI is a leading medical billing and revenue cycle management company serving healthcare providers, physicians, and clinics across the USA. Our services include medical coding, claims submission, AR follow-up, denial management, and insurance eligibility verification, all designed to boost collections and minimize errors. As a reliable medical ... read CodeCure AI reviews & insights
< $25/hr10 - 492025California City, United StatesWhy CodeCure AI?
- Accurate coding, HIPAA-compliant billing.
- Fast claims, better revenue cycle (RCM).
- Affordable billing services, real results.
Virtual assistant services for small & medium sized businesses. Outsource your tasks & projects to a USA-based company for as low as $6.00 per hour.
$25 - $49/hr250 - 9992013Los Angeles, United StatesIQ BackOffice is a leading finance, accounting and human resources outsourcing company, offering 99.97% accuracy and up to 68% savings to companies around the globe. We deliver customized solutions for transactional activities such as accounts payable, accounts receivable and payroll, plus general accounting and financial statement preparation to create a complete finance and accounting solution.
$25 - $49/hr250 - 9992002El Segundo, United StatesEstablished by a team of professionals, Mr E-Sourcing prides itself in offering quality call center services to a wide variety of clients.
< $25/hr2 - 9Los Angeles, United StatesTurning client complaints into a business solution is the principal behind Constant Link. Founded by two mobile professionals and business executives, Constant Link services provide professional, live receptionists that answer your calls 24 hours a day/7 days a week. The service combines the benefits of a traditional receptionist with a comprehensive web-based control center that ... read Constant Link reviews & insights
< $25/hr10 - 492009Los Angeles, United StatesGirl Friday Associates is a virtual personal assistant and support services company based in Silicon Valley, California. The design of the company is to offer executive-level administrative, personal assistance, creative and technical support and services contractually to companies or individuals without the additional cost of overhead to you. The combined experience of the founders is ... read Girl Friday Associates reviews & insights
< $25/hr2 - 9San Jose, United StatesOur founder had the same problem you do: drowning in bad hires. Most VAs looked good on paper but disappeared after a few weeks. Then he found one who could replace two full-time employees. She showed up every day, communicated clearly, and solved problems without being told. It changed everything. He realized other business owners ... read Stellar Staff reviews & insights
$50 - $99/hr250 - 9992022Newport Beach, United StatesAt Vantage Market & Digital Solutions LLC, we specialize in elevating businesses by combining cutting-edge technology with time-tested strategies in electronic presence management. Based in California, our approach goes beyond traditional digital marketing. We focus on holistic, end-to-end solutions that encompass website development, custom software, ... read Vantage Market & Digital Solutions LLC reviews & insights
NA2 - 92024Tracy, United StatesGame-Changer for Our Firm's Digital Presence
- Head or Demand GenVirtual Latinos is the first platform focused on connecting entrepreneurs, teams and agencies from the US, Canada and the world with virtual assistants and virtual marketers from Latin America. Our Virtual Latinos are the team members you’d enjoy having in your office, except they work ... read Virtual Latinos reviews & insights
< $25/hr2 - 92018San Diego, United StatesSupportive and profesional support team, great process but made me lose 2 weeks.
- CEOInformatics Outsourcing provides professional services that cater to the outsourcing needs of various industries around the globe. We have a team of well experienced professionals who bring in specialized capabilities to handle the wide spectrum of global outsourcing service industry. The Informatics Outsourcing knowledge management team encompasses PhD level statisticians, MS level analysts, Graduates in ... read Informatics Outsourcing reviews & insights
NA10 - 492001Santa Clara, United StatesA virtual office offers a smart low cost alternative to renting a conventional physical office space but with all the same benefits and professional services.
< $25/hr2 - 9San Diego, United StatesThe Future of Work is @ Office Beacon Office Beacon was quick to realize that small business owners needed an alternative to working with freelancers. We identified the problems and came up with a solution. Replace freelancers with a back-office platform that would offer small business owners managed services and license-free software that they could ... read Office Beacon reviews & insights
NA1,000 - 9,9992001California City, United StatesWe are a company specializing in medical billing and coding, collection of accounts as well as providing payment processing for your medical practice. At Columbus healthcare, we are dedicatedly committed to helping you, our client, and we strictly follow (HIPAA) Health Insurance Portability and Accountability Act. Our team understands how important is patient health Information ... read Columbus Healthcare services LLC reviews & insights
< $25/hr10 - 492017Los Angeles, United StatesAllzone Management Services is a premier provider of medical billing, medical coding, and revenue cycle management services. They specialize in helping healthcare providers in the United States streamline their billing processes, improve claim accuracy, and maximize revenue. Here are some key features of Allzone Management Services: Medical Billing: Handles the entire billing process, including claim ... read Allzone Management services inc reviews & insights
NA0250 - 999Glendale, United StatesLevelUp Leads is a B2B Sales Development agency and a done-for-you service. We act as an extended part of your team and offer Fractional and Full Service SDRs backed by our team and tech stack to run outbound Email, LinkedIn, or Cold Call campaigns to generate meetings for you. Our team leads your outbound strategy, ... read LevelUp Leads reviews & insights
< $25/hr10 - 492021San Francisco, United StatesGrupo Noa International is Multilingual Inbound Call Center, Interpretation Services, Call Center outsourcing, Lead generation call center services provider in Europe and USA. Grupo Noa International is a global virtual call center providing high reliability with effective cost international direct response service.Grupo Noa International is a global virtual call center providing high reliability, low cost ... read Grupo Noa International reviews & insights
NA250 - 9992007Pasadena, United StatesTactical TeleSolutions (TTS) is a boutique lead generation agency in the Bay Area. TTS was established in 1991 and has developed innovative calling campaigns for Start Ups to Fortune 500 clients. Our intellectual property is unrivaled. TTS offers a wealth of knowledge in all styles of telephone campaign--high end appointment setting, lead qualification, event support, ... read Tactical TeleSolutions reviews & insights
$50 - $99/hr50 - 2491991San Francisco, United StatesDigi Media Infotech is a India-based digital outsourcing service provider, principally engaged in the provision of Knowledge Process Outsourcing and Virtual Assistant solutions. We began as a living room project but now we have grown into a team of more than 50 people working in office. Our team is a collection of young, motivated, and ... read Digi Media Infotech reviews & insights
$50 - $99/hr10 - 492009Sanger, United StatesExcel Telemessaging was founded on the principle that every client will receive exceptional service at a reasonable cost. Our management team has combined experience of over 85 years in the answering service industry. When the image of your company depends on how your telephone is answered, your answering service must be as professional as you ... read Excel Telemessaging reviews & insights
$50 - $99/hr10 - 491966Irvine, United StatesCall Centers Now helps businesses to connect with reputable call centers, which provide inbound and outbound call center service. This can range from anything from after hours phone answering services to lead generation services.
< $25/hr10 - 492015Burbank, United StatesAn answering service’s success depends on the success of your business. For over 40 years A-1 Gilbert Answering Service has been answering for businesses and helping companies grow. Our primary objective is to provide clients with a 24/7 telephone answering service tailored to suit their needs. We are committed to excellence in all of our ... read A-1 Gilbert Answering Service reviews & insights
< $25/hr2 - 91946Beverly Hills, United StatesKeeping in touch has become a 24-hour-a-day job in the highly competitive world of business. A timely response to a client's call can mean the difference between getting that order in or being an also-ran. At Answer, Inc., we understand the urgencies of the workplace. We realize that delivering messages is as important as taking ... read Answer, Inc reviews & insights
< $25/hr2 - 9San Diego, United StatesPiedmont Avenue Consulting, Inc. is a San Francisco Bay Area based business development and marketing consulting firm who creates brand awareness, strengthens customer loyalty, and increases lead generation by leveraging new technologies and streamlining business processes. Clients who hire us as marketing experts and business consultants include new and established companies, restaurants, franchises, law firms, ... read Piedmont Avenue Consulting reviews & insights
< $25/hr2 - 9San Francisco, United StatesFounded by a team from Google, Apple, and Intuit, Smith.ai is known for superior call answering services. Our friendly, professional virtual receptionists answer calls, web chats, and texts, book appointments, qualify leads, handle new customer intake, answer questions, and make outbound calls for you and your business. You get the experience of an in-house receptionist, ... read Smith.ai reviews & insights
< $25/hr50 - 2492015Los Altos, United StatesWho we are We’re happy marketers who enjoy working with fellow marketers to help make their lives simpler and work easier. The long version: we’re a global business-to-business marketing services company that works hard for marketing and sales leaders from Fortune 500 enterprises to small and mid-sized businesses. The happy people we work with use ... read Deck 7 reviews & insights
< $25/hr250 - 9992015La Jolla, United StatesWe are data driven lead-generation experts helping financial companies get more quality leads and decrease costs through leading-edge online technologies, unmatched guarantees, team members who care and by giving back to our community. We are an up and coming hip to the bone (did we just say that?) online lead generation agency.
< $25/hr10 - 492012Ladera Ranch, United StatesToTheWeb offers the proven website strategies and tactics you need to generate more qualified traffic and pipeline leads. A leader in web strategy and search engine marketing, ToTheWeb LLC works with B2B companies to increase qualified website traffic, leads and sales. We work side by side with our clients to create customer-oriented websites that achieve ... read ToTheWeb reviews & insights
< $25/hr2 - 91995San Mateo, United StatesWe believe in empowering profitable growth by connecting the right solution to those who don't know it exists. We send thousands of personalized messages to your dream clients on LinkedIn — getting responses straight to your inbox.
< $25/hr10 - 492016Los Angeles, United StatesHaving the right media will help you communicate powerfully with your audience. But the best media is useless without the underlying marketing systems that convert visitors into leads and leads into paying customers. This is why we work with you to develop a complete marketing plan so you can track and manage your goals.
< $25/hr2 - 9Riverside, United StatesOutbound calling really works! MedContacts has proven that fact with hundreds of successful outbound calling campaigns directed toward decision makers in the medical, dental and optical industry. Headquartered in San Diego, MedContacts is a division of Business to Business Marketing, a premier direct marketing firm established in 1999 that specializes in demand generation and customer ... read MedContacts reviews & insights
< $25/hr2 - 91999San Diego, United StatesThe online advertising industry is growing increasingly competitive as every moment passes, and we have the upper hand against our competitors. We are a young group of technology junkies with a huge range of skills and talent. We work harder, we're more ambitious, and dedicated to doing whatever it take for our clients to win. ... read Adrian Agency reviews & insights
< $25/hr2 - 9Sacramento, United StatesTel-Us Call Center’s 24-hour answering service is here to support your business. Based in Los Angeles, we partner with businesses throughout California and across the United States to provide our award-winning service. As a call center, virtual office, and live answering service, we work around-the-clock to provide customized solutions for businesses across a wide variety ... read Tel-Us Call Center reviews & insights
< $25/hr2 - 9Los Angeles, United StatesDMA Central is full-fledged sales and marketing company committed to bring you only the best lead generation and appointment setting services by optimizing web marketing, direct marketing, database services, sales support and the state of the art sales force management.
< $25/hr2 - 9Los Angeles, United StatesAt Pioneer Lists, the service facets are evolving to provide a 360-degree marketing solution for your business. List Building, data appending, email marketing services, and list scrubbing are some of the leading services that we offer.
< $25/hr2 - 9San Francisco, United StatesAt SalesFish we understand the demands put on senior marketing and sales executives. We also understand that marketing and sales environments tend to be highly leveraged, and transactional, when they should be focused, and strategic. That’s where SalesFish can help “Improve your net”.
< $25/hr2 - 9Costa Mesa, United States
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