Our agency experts ranked the best BPO companies in Los Angeles based on reviews, ratings, portfolios, reputation, team size, cost of services, and more. The city is home to a thriving business process outsourcing (BPO) industry. These companies are equipped with highly trained and experienced professionals who have the skills and knowledge required to provide businesses with customized solutions that meet their unique needs. Skim through our list and find the best agency provider for your company.
Best Los Angeles BPO Service Providers Rankings
17 Companies - Rankings updated: March 31, 2026
We evaluate every agency on DesignRush according to expertise credentials and client satisfaction ratings. Some placements are sponsored.
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
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCallbox Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
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Telemarketing Project for Media & Communications Company Callbox Telemarketing Boosts Online Advertising -thumb-webp.webp)
B2B Sales Outsourcing Project for Software & IT Services Company Software Testing Firm Brings Potential Change to More Customers via ABM Campaign -thumb-webp.webp)
Telecommunications Consulting Project for Media & Communications Company Telecom Firms Campaign Enters Next Phase, Grows Reach in New Segments -thumb-webp.webp)
B2B Sales Outsourcing Project for Manufacturing Company RPA Firm Found New Distributors with Callbox Lead Generation Campaign
Reviews verified by DesignRush and sourced from the agency's profileCallbox Reviews & Testimonials
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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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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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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Data sourced from the agency's DesignRush profileAmazon Google Microsoft Workday SAP Telefonica Zendesk opentext Yandex NEC
Highest Quality, Call Center Services with Superior Customer Support.
Offering Call Center Services. In today’s fast-paced business environment, a missed call equals a missed customer. Enter TAS United. Our experienced, bilingual agents answer your calls when you can’t – keeping you connected to your patients or customers 24/7/365. [... see all TAS United reviews ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTAS United Services
Reviews verified by DesignRush and sourced from the agency's profileTAS United Reviews & Testimonials
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Phone Answering Services Review from Cerena Schane
Partnering with TAS United not only helped save us money by outsourcing our call traffic, but enhanced our first impression with our customers. Beyond the ongoing and future savings, TAS United has allowed us to capitalize on more opportunities for new business. We have been able to eliminate significant time spent on the phones.
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Call Centers Review from Viktoriia Bielkova
My experience using TAS United is very positive. Since TAS United is highly professional, responsive and client oriented. They provide a great service! I highly recommend TAS United as your business partner.
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Phone Answering Services Review from Dr. Shiree Flume
I have been a customer of TAS United since 1989 and have been very satisfied with the service. The operators have helped many of my patients who were in mental health crisis over the years and their kindness and professionalism are much appreciated.
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Data sourced from the agency's DesignRush profileBaylor Siemens Floodmaster Restauration Golden Pass LNG
HR Management Done Right
Tapping into the potential of North American markets, our HR firm specializes in connecting high-level talent from Mexico to your business. Our team specializes in recruitment, administration and management services that drive success for both employers and employees alike. We are committed to helping you [... see all Wexpand reviews ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsWexpand Services
Reviews verified by DesignRush and sourced from the agency's profileWexpand Reviews & Testimonials
Customer Support Review from Mara Muñoz Mendoza
The team at Wexpand is always ready to lend a helping hand. Their genuine willingness to assist is truly refreshing.
Show moreCustomer Support Review from Christian Orozco
Wexpand has been an incredible help in building and nurturing our team. We couldn’t have done it without them!
Show moreAndrei Palma's Review Sourced from Google
Working with Wexpand has changed the course of our business. We have been able to make the right decisions, supported by a team of experts. Additionally, we have been able to save time and money, allowing us to allocate our capital where it truly deserves to be.The individuals involved in each process are true specialists in their work and possess remarkable knowledge of their respective roles. It is because of this, that together, we have managed to form a truly competent team, fostering a highly comprehensive work environment.
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Data sourced from the agency's DesignRush profileMarketing Industry Sales Industry Outsourcing Industry
Proven Specialists in Legal Process Outsourcing
We provide bespoke outsourcing and remote work solutions for Immigration and other law firms. We specialise in case management of Immigration matters, and have proven experience in preparing a wide range of visa applications, especially O-1, EB-1, NIW and PERM visa applications. Our clients choose us because [... view Global Legal Processing Services profile ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGlobal Legal Processing Services Services
Data sourced from the agency's DesignRush profileLegal Industry Corporate Services HR Industry
Innovative Solutions That Power Your Business
Zventus is a global services provider of management consulting, staffing solutions, and outsourcing services that empower organizations to innovate, improve and grow their business. [... view Zventus profile ]- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $20/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsZventus Services
Reviews verified by DesignRush and sourced from the agency's profileZventus Reviews & Testimonials
Kaho Sakemi's Review Sourced from Google
Working at Zventus as a contractor has been one of the most insightful opportunities of my career. The projects I worked on were diverse and impactful, giving me hands-on experience in data analysis, marketing, and cross-functional collaboration. The leadership team is approachable, highly knowledgeable, and genuinely invested in helping you grow. The work culture is collaborative and supportive, making it easy to learn from colleagues and contribute meaningfully to company goals. I’ve gained valuable skills, industry knowledge, and professional connections that I hope to maintain with these individuals for years to come.
Show moreHarley Chen's Review Sourced from Google
I have just completed my four-month internship as an Associate Consulting Intern at Zventus, and I highly recommend this company as a place to work and intern.As a college student eager to break into the business world, I found Zventus to be an incredible launchpad. It provided me with the opportunity to apply what I’ve learned in school to real-world, client-oriented projects, while also engaging directly with senior management. Most importantly, they truly listen to your ideas and feedback.During my internship, I contributed to a variety of projects including market research, data analysis, marketing resource creation, business strategy, financial forecasting, and even project management. This diverse experience has been invaluable in preparing me for my future career.I have now secured an internship with a Fortune 500 company. My experience at Zventus was instrumental in this achievement. Not only was it my first internship in the U.S.—which significantly enhanced my resume—but it also gave me the deep knowledge and practical experience that became the highlight of my interview discussions.Thank you for all the amazing people here, each one of them is absolutely amazing to work with!
Show moreGabriela Saavedra's Review Sourced from Google
I absolutely do not recommend working for this company. They are inefficient. If there is a problem, don't expect them to contact them, as they never show up. It seems like a school project where they never know what happened or who did what, and in the end, it's a collage of incomplete projects. They still want to pay the minimum and expect you to divide your time into three or four different activities. PLEASE DO NOT APPLY. This company is not worth it. They are inept, irresponsible, arrogant, and underpaid.
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Data sourced from the agency's DesignRush profileHealthcare Industry Insurance Industry Fintech Industry
We Provide Medical Billing Services in California.
Certified Healthcare Billing is a premier medical billing company based in California. We specialize in providing comprehensive billing services tailored to the healthcare industry. Our expertise ensures efficient, accurate, and compliant billing solutions for healthcare providers. [... view Certified Healthcare Billing profile ]- Location
- Los Angeles, California
- Number of Employees
- 50 - 99
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCertified Healthcare Billing Services
Reviews verified by DesignRush and sourced from the agency's profileCertified Healthcare Billing Reviews & Testimonials
Hooman Esteki (Aaron)'s Review Sourced from Google
Big fan of CHB's RCM services in Los Angeles! They're fantastic at getting practices paid quickly and efficiently – truly a game-changer for revenue
Show moreSASHA SMIRNOV's Review Sourced from Google
Would highly recommend for billing services. CHB provides exceptional customer service. They always answer our calls.
Show moreNikoghosyan Gevork's Review Sourced from Google
Great group of individuals, We have been using there services for years. Our questions are always answered right away. I would definitely recommend to all practices large or small
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Data sourced from the agency's DesignRush profilePracticeSuite Kareo Practice Fusion
Outsourced Accounting Services
VargasAndrews is an international professional services firm specializing in business transformations and turnarounds. Our vision is to become an international market leader in business & digital transformations. We exist to transform businesses and business owner's quality of life. We are motivated and [... view Vargas Andrews profile ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsVargas Andrews Services
Data sourced from the agency's DesignRush profileTransportation & Logistics Industry Healthcare Industry Corporate Services Industry
True Partners Consulting
Baker Tilly USA is a privately-owned, trusted project management, tax consulting, and business advisory firm that helps public and large private enterprises navigate complex tax and financial regulations everywhere in the world. [... view Bakertilly profile ]- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsBakertilly Services
Data sourced from the agency's DesignRush profileFiltration Group Corporation Technology Industry Government Sector
Smart, Scalable Virtual Assistants For Property Management & Customer Support
Switch360 is your dedicated partner in unleashing the full potential of your enterprise. Specializing in exceptional outsourcing solutions, we redefine the customer support landscape to propel your business toward unprecedented success. With a focus on digital dominance, we bring our expertise in short-term [... view Switch360 profile ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSwitch360 Services
Data sourced from the agency's DesignRush profileWAATR Airbnb Luxurios Homes Stay Local Nova Sports Harold Home James Development Compixa
Your Customized Call Center Solution.
HIghPower call center is world renown near shore call center located in the heart of Tijuana minutes from the U.S border. Our team is bilingual, professional, and driven by performance goals. Our Call Center is second to none complete with a corporate structure and professional work environment. [... view Highpower profile ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsHighpower Services
Reviews verified by DesignRush and sourced from the agency's profileHighpower Reviews & Testimonials
Nheam Hossine's Review Sourced from Google
I grew my bussiness over 70% working with them, they offer the highest quality call service and have made running my bussiness a lot easier! Highly recommend!
Show moreSami nomair's Review Sourced from Google
I have been outsourcing my call center for years and I have finally found a company that is amazing not only in customer service but also in sales . Really competitive in pricing and also always delivers the best results. They have helped me grow my business by 20 percent just this year alone .
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Data sourced from the agency's DesignRush profileFinance Industry Corporate Services Industry Healthcare Industry
24 Hour Answering Services Company
In business since 1979, Tel-Us Call Center offers a variety of inbound call center services customized to suit the needs of its clients. Our well-trained staff of bilingual agents is available 24/7/365. [... view Tel-Us profile ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTel-Us Services
Reviews verified by DesignRush and sourced from the agency's profileTel-Us Reviews & Testimonials
Anna Schmick's Review Sourced from Google
⭐️⭐️⭐️⭐️⭐️Outstanding Service and Results!My customers have had a fantastic experience working withTel-Us Call Center Inc. The team is consistently professional, responsive, and genuinely committed to delivering top-tier customer service. They manage call flow efficiently while ensuring every caller is treated with care and attention.Clients often mention how smooth the onboarding process was and how seamless communication has been with the Tel-Us staff. Since partnering with Tel-Us, many have seen a clear improvement in their own customer satisfaction.Highly recommended!
Show moreMr Lue's Review Sourced from Google
We've been working with Tel-Us for years and they are some of the most professional and accomodating agents I have ever dealt with.
Show moreErin Choi's Review Sourced from Google
We’ve had a great experience working with Tel-US over the past year. Their team is responsive, easy to communicate with, and consistently delivers excellent service to both us and our patients. We feel confident knowing our patients are well cared for after hours. Thank you Stacy, Cheryl, and team for all that you do!
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Data sourced from the agency's DesignRush profileKumato Labs Infectious Awarebles Century 21 Community
Build.Engage.Grow.
DAK IT HUB GROUP is a leading digital publisher that provides sales, lead generation & customer care services to our clients. We realize that single-channel cannot provide you with desired results. To ensure consistent quality and complete coverage, we utilize a multi-channel approach. [... view DAK IT HUB profile ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsDAK IT HUB Services
Data sourced from the agency's DesignRush profileRetail Industry IT Industry eCommerce Industry
Strategic Solutions for Businesses & Personal Finance
Our firm offers a wide range of services to our individual and business clients. Because our firm is relatively small, our clients benefit by getting personalized, quality service that is beyond comparison. [... view Fenton & Ross Accountancy Corporation profile ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsFenton & Ross Accountancy Corporation Services
Reviews verified by DesignRush and sourced from the agency's profileFenton & Ross Accountancy Corporation Reviews & Testimonials
Ken Besada's Review Sourced from Google
Cannot say enough amazing things about Team Fenton. These guys run an incredibly tight ship. Every interaction I have with his staff, makes me ever more grateful to have them in my corner. I have referred about a dozen new clients to their firm based on my experience and they all share the same sentiment and gratitude.
Show moreChristian MacCarron's Review Sourced from Google
These people are complete clowns and awful at client service. They opted to terminate a multi-year relationship over Thanksgiving with no heads up around frustrations or issues. I would not recommend this group as they are not a true professional services firm. 0 stars if I could offer that.
Show moreSean McCarthy's Review Sourced from Google
Experts, fantastic service. They cover individual and small business. I've been with them a decade and couldn't be happier.
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Data sourced from the agency's DesignRush profileFinance Industry Corporate Services Industry Healthcare Industry
A Digital Marketing Agency Led by Upworks Top-Rated Freelancers.
We are dynamic and versatile team of digital marketing experts who bring together diverse talents and experiences to deliver exceptional results for our clients. [... view Branding Hosts profile ]- Location
- Los Angeles, California
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Minimal Budget
- Under $1,000
- Portfolios Count
- 1 Project Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsBranding Hosts Services
Data sourced from the agency's DesignRush profileSmoky Mountains Casuarina Grande EMS University The Alexandrite Inspire Careers
Efficient, Customized Services For Healthcare Providers Treating Injured Workers
Medrina Technology Management specializes in workers' compensation billing, collections, lien management, and medical transcription. We streamline revenue cycles, reduce administrative burdens, and ensure compliance, enabling healthcare providers to focus on patient care while we handle billing complexities. [... view Medrina Technology Management Pvt Ltd profile ]- Location
- Los Angeles, California
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $12/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsMedrina Technology Management Pvt Ltd Services
Data sourced from the agency's DesignRush profileWorkMed California, APC Synapse Orthopedic Group Medvantage Orthopedic LLC Bionix Pharmacy
Empowering Your Accounting Decisions.
Crowe LLP is a global accounting firm offering audit, tax, advisory, and consulting services. With deep industry expertise, we empower businesses to make informed decisions for lasting value. Recognized as a top workplace, we leverage our partnership with Crowe Global to provide comprehensive solutions [... view Crowe profile ]- Location
- Los Angeles, California
- Number of Employees
- 1000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCrowe Services
Reviews verified by DesignRush and sourced from the agency's profileCrowe Reviews & Testimonials
RA's Review Sourced from Google
As an accounting firm I would give them 1 star. I recently discovered a litany of deductions they failed to consider. You will be given an EA, which is just a glorified tax preparer. They will know nothing and be slow to reply. You might as well get your taxes done by H&R block or a proper independent CPA. If these folks do your taxes, get prepared for a larger tax bill. I strongly advise against it.
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Data sourced from the agency's DesignRush profileBanking Industry Food Industry Fintech Industry
Elevating Business Efficiency. Driving Success.
SkyTech Solutions is a leading business process outsourcing (BPO) firm specializing in comprehensive outsourcing services. With expertise in inbound and outbound call center solutions, customer support, lead generation, digital marketing, and back-office support, the agency optimizes operations for businesses [... view SkyTech Solutions profile ]- Location
- Los Angeles, California
- Number of Employees
- 500 - 999
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSkyTech Solutions Services
Reviews verified by DesignRush and sourced from the agency's profileSkyTech Solutions Reviews & Testimonials
Redwan Ferdous's Review Sourced from Google
One of the best BPO center of Bangladesh, specially in operation of international call center. The location is in Uttara - Natore Tower and the office is quite spacious.Due to NDA, couldn't share the photo.
Show moreRaihan Abdullah's Review Sourced from Google
This team demonstrated excellent responsiveness and communication skills. They flawlessly executed our short-term data entry project with great attention to detail.
Show moreAbdullah Al Mamun's Review Sourced from Google
The biggest Call center in Bangladesh. Top notch environment and heart warming work space where you can be whoever but can belong like a family.Best way to start a career who wants to build their career in digital marketing. It doesn't matter what your background is if you prove you are passionate about the work this is the place for you.
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Data sourced from the agency's DesignRush profileAll City Duct Cleaning SKY HOPE Merchants Bank Inc
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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.
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