The top BPO agencies in 2026 are Callbox, Offshore Online, and WiseVAs, selected from 8 agencies vetted by DesignRush on the basis of verified client reviews (4.5 avg. rating), project outcomes and industry expertise. Callbox leads the ranking for BPO, followed by Offshore Online and WiseVAs.
Reviews undergo a stringent verification process to ensure reliable information about each agency from verified past clients. We’ve updated our Average Star Rating system to give you the most accurate summary of all client reviews. Read more.
DesignRush evaluates BPO providers based on verified client reviews, service capabilities, industry experience, and operational performance. Some placements may be paid.
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...
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
Amazon
Google
Microsoft
Workday
SAP
Telefonica
Zendesk
opentext
Yandex
NEC
Data sourced from the agency's DesignRush profile
Callbox Reviews & Testimonials
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.
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.
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.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
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...
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
Hire A Remote AI Specialist, Not Another VA Stuck In 2015.
We help overwhelmed founders and scaling teams hire AI-trained LATAM specialists fluent in tools like OpenClaw, Claude Code, Claude Cowork, Vibecoding, ChatGPT, and more, in your time zone and at up to 80% less than a US AI hire...
Location
Clearwater, Florida
Number of Employees
Under 49
Minimal Budget
$1,000 - $10,000
WiseVAs Services
BPO
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
3D Modeling, Video Editing, Photo Editing, Call Center Services at affordable cost.
PGBS, a reliable BPO company provides high-quality services like customer support, photo editing, video editing, data cleansing, 3D modeling, 3D rendering, eBook conversion, and graphic designs...
Location
Bengaluru, India
Number of Employees
100 - 249
Portfolios Count
3 Projects Listed
Proglobalbusinesssolutions Services
BPO
Phone Answering Services
Call Centers
Video Production
Product Design
Customer Support
Creative Services
Graphic Design
Design Services
Social Media Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Confidential
Request for Info
N/A
Data sourced from the agency's DesignRush profile
Proglobalbusinesssolutions Reviews & Testimonials
Stella Madison Review from Google
4.0★
Stella Madison's Review Sourced from Google
We are very pleased with the work done by the PGBS team. They developed our online website store in a professional manner and made the whole experience easy and seamless. We have got pretty good comments from our patrons on the website. Great job guys!
Anne Jocob Review from Google
5.0★
Anne Jocob's Review Sourced from Google
PGBS, helped us with every aspect of the project and that was really great. The quality of the electronic products was great, the delivery was on time and specifications were all met. We are really amazed when we had received the photo realistic 3D renders better than we expected. If you wish to receive quality 3D renderings then we will suggest PGBS without any hesitation.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
MyRemoteVA delivers a unique blend of AI efficiency and skilled professional expertise to help startups, entrepreneurs, and executives save time and scale. From admin support and social media to websites and executive tasks, our Virtual Assistants work smarter with ChatGPT-powered processes that speed up...
Location
Kozhikode, India
Number of Employees
50 - 99
Average Hourly Rate
$6/hr
Minimal Budget
Under $1,000
My Remote VA Services
BPO
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
HabileData is a leading provider of outsourced data annotation services, empowering companies around the globe to unlock the true potential of their artificial intelligence (AI), machine learning (ML), and natural language processing (NLP) projects. With a focus on quality and accuracy, we offer a...
Location
Ahmedabad, India
Number of Employees
500 - 999
Average Hourly Rate
$5/hr
HabileData Services
IT Services
BPO
AI Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Pfizer
Chevron
SIEMENS
ERNST & YOUNG
Princeton University
Data sourced from the agency's DesignRush profile
HabileData Reviews & Testimonials
Ann Darrow COO at Data Entry Seattle
5.0★
Data Entry Review from Ann Darrow
I have worked with HabileData for a large and complex survey form data entry project. Their team assist us to process 13,000+ handwritten survey forms on a daily basis with 99.98% accuracy rate. I would recommend HabileData for sure to anyone looking for experts in data capture and processing.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
If speaking kindly to plants helps them grow imagine what speaking kindly to humans can do.
At Customer Umbrella, we pride ourselves on delivering professional, secure, and multilingual customer support services to our clients. With round-the-clock availability, 365 days a year, we ensure that our clients receive exceptional assistance at affordable rates...
Location
Varna, Bulgaria
Number of Employees
500 - 999
Minimal Budget
$1,000 - $10,000
Customer Umbrella Services
Call Centers
BPO
HR Outsourcing
Phone Answering Services
Translation Services
Transcription Services
Customer Support
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Trusted BPO Data Entry Services For Accuracy and EfficiencyAs the provider of trusted BPO Data Entry Services in India, USA, our BPO solutions enable companies to simplify their processes, mitigate expenses, and increase productivity.Our vast experience and expertise enable us to deliver accurate and...
Location
Kanchipuram, India
Number of Employees
50 - 99
Average Hourly Rate
$5/hr
BPO Data Entry Help Services
BPO
Business Consulting
Transcription Services
Customer Support
Accounting
Market Research
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
What you pay depends on the contract structure. There are four main models:
An hourly rate involves paying for an agent’s time regardless of how many interactions they handle. It runs:
$8 to $15 offshore
$20 to $30 nearshore
$40 to $60+ onshore
Per-agent (FTE) is a flat monthly fee of $1,200 to $4,000 per dedicated agent. Predictable, but you pay the same regardless of the volume.
Per-interaction charges $1–$5 per resolved ticket or $0.50–$2 per chat. Cost-efficient when volume is low or seasonal, but bills spike during busy periods.
Outcome-based ties fees to KPIs like CSAT scores or first-call resolution — typically $3 to $9 per successful resolution.
How do I compare two BPO providers quoting similar prices?
When two BPO firms quote similar prices, the decision should come down to industry experience, agent attrition rates, SLA terms with defined remedies, and how each vendor handles your specific exception cases, not the headline rate.
Ask for case studies from clients in your industry. A BPO company with relevant experience can start right away, while one without it will learn on your dime.
Then go beyond the deck. Give both vendors your two or three most complex support scenarios and ask them to walk you through exactly how they’d handle each one. The vendor with a documented protocol beats the one that says, “We’d escalate.”
Pay close attention to SLA clauses, specifically what happens when they’re missed, not just what the targets are. Two vendors can quote identical SLAs but differ completely on the consequences for missing them.
Finally, ask for the agent attrition rate for the specific team being proposed, not the company average. High turnover on your account means constant retraining and inconsistent service, regardless of the price.
What contract terms do most buyers accept that they shouldn’t?
The contract terms most buyers accept are auto-renewal clauses with short notice windows, SLAs with no financial remedy for misses, and IP clauses that leave process documentation owned by the vendor — all of which remove your leverage once performance drops.
Four terms worth pushing back on before you sign:
Auto-renewal clauses can trap you into a long-term agreement if the notice window is short, often 60–90 days. Miss the window, and you’re locked in for another year regardless of performance.
SLAs without consequences. Most contracts define targets but don’t specify what happens when they’re missed. Your agreement should define redressal terms, whether that’s service credits, payment for damages, or the right to exit early.
IP and process documentation ownership. Avoid clauses that grant the BPO provider exclusive rights to your intellectual property, or that allow them to sublicense or transfer it to third parties. If they own the runbooks built on your processes, switching vendors gets expensive.
Exit and termination terms need to include your ability to re-employ key personnel who hold critical knowledge of your account; otherwise, that knowledge walks out with the vendor.
The simplest check: read the contract assuming performance will eventually disappoint. If you have no leverage when that happens, negotiate before you sign.
How do BPO companies handle a sudden surge in volume?
BPO companies handle volume surges through a combination of flexible staffing, automation, and cross-trained overflow teams, but how well they execute depends entirely on what your contract says about surge capacity before it happens.
Most BPO providers have a few ways to handle sudden spikes:
Bringing in temporary agents
Moving staff from quieter channels to busier ones
Using chatbots or self-service tools to handle routine questions before they reach a human. Self-service tools can deflect 20-40% of contacts during a surge.
But not every BPO provider handles this well. When surges go unmanaged, call abandonment rates can reach 15%, which means frustrated customers and damage to your brand, not the vendor’s.
The right time to ask about this is before you sign. Find out how much notice your BPO company needs to scale up, and what the contract says about volume above your agreed tier.
A vendor who can staff up fast but delivers off-brand service during your busiest period is a liability, not a solution.