Organic rankings are determined by five factors: top services, reviews, portfolio, awards/press, and team expertise. Sponsored listings pay for a placement that appears above organic positions. Sponsorship does not affect star ratings or review content - read more on our methodology page.
United States × Telemarketing × Transportation & Logistics × Sort by: Organic Rankings ×Clear Filters
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...
Top Services:
Managed Services
Cloud Consulting
Digital Marketing
ERP Consulting
CRM Consulting
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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.
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Martal Group runs outsourced B2B cold calling, appointment setting, lead generation, and SDR programs for companies across SaaS, fintech, cybersecurity, healthcare, and manufacturing, powered by 200+ onshore sales executives and proprietary AI outreach...
Top Services:
Email Marketing
Digital Marketing
Social Media Marketing
BPO
Digital Strategy
Show more
Location
San Francisco, California
Number of Employees
50 - 99
Average Hourly Rate
$45/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
5 Projects Listed
Martal Group Services
Email Marketing
Digital Marketing
Social Media Marketing
BPO
Digital Strategy
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Clickworker.com
Incentives-Solutions.com
Semasio.com
Kipod.com
Favendo.com
Weezmo.com
Intech-Global.com
NemoNano.com
Indoorgo.com
Vidmind.com
Data sourced from the agency's DesignRush profile
Martal Group Reviews & Testimonials
Nidhi Jaiswal Marketing Executive at Social Frontier
5.0★
Marketing Review from Nidhi Jaiswal
From the very start, their team was very professional, communicated in a timely manner, and was very familiar with B2B lead generation. We were just surprised at their team culture and their desire to work hand-in-hand with our team. It felt like they were not an external vendor but a true partner in all respects.Throughout our working time together, Martal always produced excellent work while keeping us informed and engaged. They are solution-oriented, proactive, and willing to share ideas that enhance performance. It is not often that you find a team that is so concerned about your success.What we value most is their honesty and commitment to building something that will last. They don't seek quick wins but work to build outcomes that last and can potentially expand. With their experience combined with a well-structured plan, they are a reliable and outcome-driven collaborator.If you need to reach more customers and you would like to have a company that is concerned about your success, you can rely on Martal Group. We highly recommend that you use their services.
Anas Aftab Outreach Manager at Get Pro Links
5.0★
Digital Marketing Review from Anas Aftab
Working with Martal Group has been an absolute pleasure. Their team is collaborative and transparent and consistently delivers on their commitments with professionalism and expertise. From the start, it was clear they are passionate about building meaningful and lasting business relationships.What stands out most is their willingness to go above and beyond. Whether its sharing valuable insights, offering timely support, or simply being approachable and helpful, Martal Group has proven to be a reliable partner. Their depth of knowledge in the B2B space, paired with a genuine dedication to helping businesses grow, makes them a standout organization.If you're looking for a team that values collaboration, transparency, and long-term success, Martal Group is an excellent choice.
Doug McLean VP of Global Sales and Channels at Complete EDI
5.0★
Call Centers Review from Doug McLean
Martal Group was able to facilitate Complete EDI’s first ever outbound lead generation efforts in the company’s history. Following the onboarding process, Martal was able to deliver 2 sales-qualified leads within the second week of campaigns and by the end of the 3 month pilot period had 14 sales-qualified leads.
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Helpware CX is a call center company that runs inbound and outbound call centers across 19+ locations in 11 countries, supporting 45+ languages. The agency posts 90% CSAT and holds 30+ industry awards including the IAOP Global Outsourcing 100 and a Gold Stevie Award. Clients average a 5-year partnership...
Top Services:
Customer Support
BPO
Call Centers
Phone Answering Services
Business Consulting
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Location
Lexington, Kentucky
Number of Employees
1000 & Up
Average Hourly Rate
$25/hr
Minimal Budget
$10,000 - $25,000
Portfolios Count
17 Projects Listed
Helpware Services
Customer Support
BPO
Call Centers
Phone Answering Services
Business Consulting
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
DoorDash
PureCars
Headspace
Microsoft
Google
CompIQ
Samsara
Jam City
RestoraPet
HealthComp
Data sourced from the agency's DesignRush profile
Helpware Reviews & Testimonials
Maria Maidana Customer Onboarding & Enablement Manager at SquadLocker, Inc
5.0★
Customer Support Review from Maria Maidana
Helpware has been a trusted partner for SquadLocker for several years now for customer success. Our Customer Onboarding Team continues to shine through every administrator that interacts via our Live Chat channel for store help. Anzhelika is my Onboarding Lead and we work hand in hand in making any and all decisions for team enhancements. She delights both DIY and Enterprise administrators across multiple channels here at SquadLocker. I would not be as successful without Anzhelika by my side. I forsee using Helpware for years to come!
Brian Agee Director of Sales & Marketing at Petro Towery
5.0★
Web Design Review from Brian Agee
My organization contracted with Helpware for a complete website design and build. I am extremely happy with the finished product and continually receive positive feedback from customers, vendors, and employees. The Helpware team was very professional throughout the entire process and did an incredible job keeping the project on time and on budget. Communication was also great and I really appreciated their consultative approach. I would recommend without hesitation.
Brian Lubeck Broker at Cypress Property Group
5.0★
Virtual Assistant Review from Brian Lubeck
Over the past five years, I've had the privilege of partnering with Helpware, and my experience has been nothing short of exceptional. Their commitment to efficiency and cost-effectiveness has consistently impressed me. Whether you're a startup or an established enterprise, Helpware offers tailored virtual assistant solutions that work well with any company. I highly recommend them to anyone looking to hire a virtual assistant.
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Appointment Setter Online delivers outsourced appointment setting and lead generation through dedicated SDRs assigned by client fit, covering outbound prospecting, inbound qualification, telemarketing, and customer support. To date, the call center provider reports 75,000+ verified sales bookings...
Top Services:
BPO
Phone Answering Services
Customer Support
Digital Marketing
Social Media Marketing
Show more
Location
Albany, New York
Number of Employees
500 - 999
Average Hourly Rate
$5/hr
Portfolios Count
8 Projects Listed
Appointment Setter Online Services
BPO
Phone Answering Services
Customer Support
Digital Marketing
Social Media Marketing
PPC
Email Marketing
Content Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Trainual Inc
15Five
electrIQ marketing
YCharts
PERQ
GMass
Heinz Marketing Inc
Arch-Con Corporation
Data sourced from the agency's DesignRush profile
Appointment Setter Online Reviews & Testimonials
Eli Hamilton Sr. Director of eCommerce at Intelligentsia Coffee Inc.
5.0★
Customer Support Review from Eli Hamilton
This company has delivered exceptional customer support services that made a noticeable impact on our overall workflow and customer satisfaction. From day one, their team demonstrated professionalism, responsiveness, and a genuine commitment to representing our brand with care. They handled customer inquiries promptly, clearly, and with an impressive level of empathyensuring that every interaction felt personalized and attentive.One of the things we appreciated most was their ability to quickly understand our products, processes, and communication tone. They not only answered questions efficiently but also helped educate our customers, resolve issues with patience, and maintain a positive experience even in challenging situations. Their follow-up processes were consistent, their communication was always organized, and their ability to manage high volumes of inquiries without compromising quality truly stood out.They became a seamless extension of our internal team, reducing our workload and allowing us to focus on growth while knowing our customers were in excellent hands. Their dedication, reliability, and customer-first approach made the entire partnership incredibly valuable. We highly recommend their customer support services for any business looking to elevate its service experience.
Romain Devisme Executive Director at Havas Events Shanghai
5.0★
Back Office Outsourcing Review from Romain Devisme
We hired Assistant Setter Online for:contracted customer support solutionshrinking customer querie volumeBeing an agency involved in the business of advertising and marketing we were ramping up our efforts in terms of campaigningAssistant Setter Online does all our inbound processing, phone, chat and e mail support. They started employment with us on test basis initially and during their 2- week onboarding process they did so with our front-line team which was structured. We gave them tours of our products, tone of voice, brand guidelines and escalation workflows. All the traffic entering their channel is currently managed by their team, all the outbound communication is done via RingCentral and they also integrated Tawk.to live chat support on our site, increasing the level of engagement and conversion. After working with Appointment Setter Online, we now have quantitative indicator of results in customer satisfaction levels. They always provide a high level of support and it has saved us a considerable amount of overhead costs in the process of hiring, training and retaining in-house personnel. We would in fact expect savings of 50 percent or more. They have been extremely reactive and structured.
Raul Vizcaino Operations Manager at Supermarket Source Inc
5.0★
Appointment Setting Review from Raul Vizcaino
I am the Operations Manager at Supermarket Source Inc, We empower our customers to excel by providing top-notch equipment and design services to the food retail industry. We needed help with B2B appointment setting and sales closing to increase our revenue and sales, Appointment Setter Online provides B2B appointment-setting services. We provide our company's data, and the team helps us with email, chat, and phone calls. We pay $1,000 for each agent, Appointment Setter Online has increased our sales by 22% so far. The quality of their work exceeds our expectations, Appointment Setter Onlines project manager always contacts us through WhatsApp, Slack, and email. We use High Level to arrange the leads and Google Sheets to maintain records and updates of the sales and leads, Were satisfied with the quality of the team, and they've actually increased our sales.
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Established in 2009, Unity Communications is a US-based Business Process Outsourcing (BPO) company specializing in sales, technical support, customer service and administrative support services...
Top Services:
BPO
Customer Support
Business Consulting
Call Centers
Show more
Location
Gilbert, Arizona
Number of Employees
500 - 999
Average Hourly Rate
$9/hr
Portfolios Count
3 Projects Listed
Unity Communications Services
BPO
Customer Support
Business Consulting
Call Centers
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
AT&T
Microsoft
Konica Minolta
Amazon
First American
Altaworx
Zontre
Sandler Partners
Intuit QuickBooks
Fleet Complete
Data sourced from the agency's DesignRush profile
Unity Communications Reviews & Testimonials
Matt Schnurr Director of IT at RingCentral
5.0★
IT Services Review from Matt Schnurr
As a RingCentral partner, Unity Communications provides one of the best sales support teams for technology for companies. The client's projects involved handling different customers types from large enterprises to small businesses, implementation, and customer service. The Unity team did a very thorough job handling intricate technical demands that involved research, spreadsheet details, proposals, and immediate response when required. Very detailed. (Verified by email)
Alexa Fernandez Digital Strategist at Professional and Seamless BPO
5.0★
Data Entry Review from Alexa Fernandez
We have seen an extremely positive shift since working with Unity Communications. We were looking to expand our global resources and Unity Communications allowed us to do so. All team members on boarded have continuously exceeded our expectations and the team we worked with allowed for completely seamless facilitation.
mia trigo Review from Google
1.0★
mia trigo's Review Sourced from Google
requires a star but actually my rating to this company is negative stars lol. This company is a scam. They act like their interviewing and offer a position then they ask for money in form of a gift card. Be careful this is a scam. No company would ask for you to pay them to work for them. I wasted 3 hours with this company in hopes of a job. All they did was waste my time.
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US-Based Outbound SDR Agency. Boutique. Multi-Channel. Real Pipeline.
Leadium builds each engagement around channel-optimized lead research, identifying whether each prospect is best reached by phone, email, or LinkedIn before outreach begins. Thefirm provides outbound and inbound appointment setting, cold calling, data sourcing, and deliverability management...
Top Services:
Email Marketing
BPO
CRM Consulting
Business Consulting
Direct Marketing
Show more
Location
Las Vegas, Nevada
Number of Employees
50 - 99
Average Hourly Rate
$50/hr
Minimal Budget
Under $1,000
Leadium Services
Email Marketing
BPO
CRM Consulting
Business Consulting
Direct Marketing
Customer Support
Market Research
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Square
Rackspace
Microsoft
LG
DirecTV
OSRAM
Time Logistics
Palo Alto Networks
Amada Senior Care
brightwheel
Data sourced from the agency's DesignRush profile
Leadium Reviews & Testimonials
Scott Proffitt VP of Sales at Energy Assurance
5.0★
AI Marketing Review from Scott Proffitt
Our monthly leads have gone up by 3x with Leadium. This allows us to focus on production efficiencies.
Sam Jennings Sales Manager at Best Bees Company
5.0★
Call Centers Review from Sam Jennings
Finding Leadium changed the way our team operates. They've been able to fill our pipeline with the people we want to talk to so we can focus on beekeeping.
Marcos Moura Founder and COO at Amada Senior Care
5.0★
Call Centers Review from Marcos Moura
Leadium is able to speak to our prospects as if they're Amada themselves. They're filling our pipeline in a way we couldn't!
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Answering Service Care Provides Trained Customer Service Professionals.
Call center agency Answering Service Care empowers your customer operations with 24/7 live chat, expert lead intake, appointment scheduling, and HIPAA-compliant secure messaging. We ensure every customer interaction is seamless, professional, and reliable, so you never miss a lead or opportunity...
Top Services:
Phone Answering Services
Call Centers
Customer Support
BPO
Show more
Location
Margate, Florida
Number of Employees
Under 49
Portfolios Count
3 Projects Listed
Answering Service Care, LLC. Services
Phone Answering Services
Call Centers
Customer Support
BPO
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Flowers & Foley
UOAA
HG Consulting
Data sourced from the agency's DesignRush profile
Answering Service Care, LLC. Reviews & Testimonials
Vai Lealiiee Owner at Undisclosed
5.0★
Phone Answering Services Review from Vai Lealiiee
I had an issue with the protocol for our message retrieval. Spoke with Maria, the account manager in Client Relations, and she handled my concerns in a professional manner, extremely courteous, empathetic, and very kind. She fixed our account and I am so happy to be able to work with the Answering Service Care company again! I used to be an agent with them 10 years ago and still use skills taught from this company in my every day life. They are the best answering service company nationwide! I highly recommend to anyone who needs this service for their businesses. You will not be disappointed!
Lee Ann Morris Owner at Undisclosed
5.0★
Phone Answering Services Review from Lee Ann Morris
It is nice to be able to leave the office everyday at 5pm and not have to worry about your customer's being taken care of. The Answering Service staff are professional and they truly are the best ones we have ever had!
James Sims Review from Google
1.0★
James Sims's Review Sourced from Google
I have had the worst experience with Answering Service Care. They had problems signing me up with google voice never completing the onboarding but still charging monthly. I called several times to resolve issue and they keep sending bills. I do not like to leave negative reviews but need to warn others about this business. They are not professional. Go anywhere else.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
Lease A Sales Rep, is an industry leader in the Call Center, Lead Generation and contracts sales space services; getting GUARANTEED appointments with decision makers, HOT leads and signed contracts for our clients with our inside and outside sales teams. We are hunters working at an INC 5000 company built in...
Top Services:
Call Centers
Location
Raleigh , North Carolina
Number of Employees
100 - 249
Average Hourly Rate
$100/hr
LSR Services
Call Centers
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
B2B Lead Generation | B2B Appointment Setting | Cold Calling Services and More
CallingAgency books qualified B2B appointments with decision makers for your sales team. We have served more than 2,100+ businesses across 50+ industries in the US, Canada, and Australia...
Top Services:
Call Centers
Customer Support
Digital Marketing
Location
New Castle, Delaware
Number of Employees
250 - 499
Average Hourly Rate
$25/hr
Minimal Budget
$1,000 - $10,000
Calling Agency Services
Call Centers
Customer Support
Digital Marketing
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
"Your Trusted Service Partner, Across the Nation."
ASK 2 PRO delivers expert virtual assistant services nationwide, helping businesses streamline tasks, boost efficiency, and expand their network. From admin to communication, we handle the details so you can focus on growth and success...
Top Services:
Web Development
Digital Marketing
AI Development
HR Outsourcing
Customer Support
Show more
Location
New York City, New York
Number of Employees
50 - 99
Average Hourly Rate
$7/hr
ASK 2 PRO Services
Web Development
Digital Marketing
AI Development
HR Outsourcing
Customer Support
Phone Answering Services
IT Services
Market Research
Branding
BPO
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Our B2G sales team helps you set more meetings and win more deals with state and local government agencies at a fraction of the cost of hiring internally...
Top Services:
Business Consulting
Call Centers
Phone Answering Services
Location
Tempe, Arizona
Number of Employees
Under 49
Minimal Budget
$1,000 - $10,000
SLED Sales Services
Business Consulting
Call Centers
Phone Answering Services
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Reliable Truck Dispatch Services in the USA | SD Global Services
In order to make a trucking business successful, effective dispatching, technology solutions, and customer service play a crucial role. Similarly, in scaling operations, efficient systems and clear communication are key to growth and long-term success...
Top Services:
Digital Services
Web Design
Web Development
WordPress Website Design
Affiliate Marketing
Show more
Location
Milwaukee, Wisconsin
Number of Employees
50 - 99
Average Hourly Rate
$200/hr
Minimal Budget
$1,000 - $10,000
SD Global Services Services
Digital Services
Web Design
Web Development
WordPress Website Design
Affiliate Marketing
SEO
Digital Marketing
Content Marketing
BPO
Mobile App Development
Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
Software & IT Services Industry
Professional Services Industry
Transportation & Logistics Industry
Data sourced from the agency's DesignRush profile
SD Global Services Reviews & Testimonials
parinita jha Review from Google
1.0★
parinita jha's Review Sourced from Google
They conducted my L1 interview twice, and I attempted all the questions. However, they accused me of using ChatGPT to answer them. I even rotated my camera to show my surroundings and prove that I wasn't getting any assistance. After that, I received no feedback from them."
Prateek S chowdhary Review from Google
1.0★
Prateek S chowdhary's Review Sourced from Google
if there is a possibility of giving minus 5 star i will give that,CHEATERS is the only word for them , they will keep your goods and will ask to pay 3 months extra after that, don't fall into their TRAP. i am taking them to consumer court for the things which they have done.
Mohd Babar Review from Google
1.0★
Mohd Babar's Review Sourced from Google
Wrost experience, while missing interview HR abusing you via text. Can't believe. Is it possible at this level.HR name was Amit Kumar.If you dont have manner to speak your employee how can this firm healthy.Best of luck for the employee who is going to join.God bless you.
Reviews verified by DesignRush and sourced from the agency's profile View All Reviews