DesignRush agency experts identified the top voice & call centers in Colorado that provide telecommunication and specialized services like conducting surveys, answering emails and more. Filter them by cost, reviews and team size to find the best fit for your business.
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Pioneering Customer Support Automation Excellence
ADL provides all aspects of business telecommunications, phone lines, high speed internet, human resource support, remote team support with software, answering service, administrative support, live chat and custom account services [... view ADL Call Center profile ]Top Services:
- Call Centers
- Virtual Receptionist
- Location
- Denver, Colorado
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsADL Call Center Services
- Call Centers
Reviews verified by DesignRush and sourced from the agency's profileADL Call Center Reviews & Testimonials
- David Haney Review from Google1.0★
David Haney's Review Sourced from Google
I have done business with ADL Call Center, and they do not pay their bills. It's virtually impossible to reach anyone live at this company, and they have a past due invoice from October 2024. My contact who runs the Call Center has ghosted me, and over less than $500.00. My personal opinion is if you cannot pay your bills, your not worth doing business with!!!
Show more - Sambridhi Adhikari Review from Google5.0★
Sambridhi Adhikari's Review Sourced from Google
The ADL team has been an integral extension of our family owned business. They do a great job of understanding what is needed for your business and provide excellent service. Their team steps it up whenever our business needs extra support and attention. Since we are a family owned business we appreciate them treating us like family and vice versa.
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Data sourced from the agency's DesignRush profileRetail Industry Software & IT Services Industry Design Industry
World-Class Outsourced Teams Operating 24/7 Globally, in 60+ Languages
Our goal at Hugo is always to elevate your customer experience through 24/7 call center services powered by a multilingual, global workforce. Our cutting-edge methodologies drive exceptional performance in customer care, data annotation, and marketplace operations for clients like Meta and Google. [... see all Hugo reviews ]Top Services:
- Call Centers
- BPO
- Back Office Outsourcing
- Location
- Denver, Colorado
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $10/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 8 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsHugo Services
- Customer Support
- Call Centers
- BPO
- Phone Answering Services
- Transcription Services
- Translation Services
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
View Full Portfolio
Call Centers Project for eCommerce Company Hugo Helps Faire Empower Independent Retailers 
Outsourced Customer Support Project for Beauty Company How Hugo Helped Topicals Redefine Skincare 
Back Office Outsourcing Project for Education Company How Hugo Helped Outschool Handle Growth 
BPO Project for AI Company How Hugo Helped Confront Inclusion Gaps 
Outsourced Customer Support Project for Wellness & Fitness Company How Hugo Helped Sakara Transform Health 
Outsourced Customer Support Project Transforming Customer Service in the Home Furnishings Industry
Reviews verified by DesignRush and sourced from the agency's profileHugo Reviews & Testimonials
Greg Digneo founder at content guppy5.0★B2B Review from Greg Digneo
Best decision we made last year was partnering with this CX team for our customer support, billing, and sales assistance. We were drowning in client emails and chasing invoices late at night instead of focusing on SEO strategy. Results have been incredible: client response times dropped from hours to under an hour, payment collection improved 60%, landing page conversions up 28%, and client retention increased 35%. They integrated seamlessly with our systems and scaled with us as we grew. Now we have more time to focus on delivering SEO results instead of being stuck in support tickets all day. If you're an agency juggling client support with campaign management, this team is a game-changer.
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Nimmit Shah Owner at Pi Asset Management Ltd5.0★BPO Review from Nimmit Shah
Collaborating with Hugo elevated our property management firm's performance. Their support solutions slashed response times by 40% and boosted tenant satisfaction by 30%. Hugo's seamless integration proved instrumental in propelling our business forward, setting new benchmarks in operational excellence.
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Jambu Subramanian Senior Manager of Operations at Kasha Global5.0★Customer Support Review from Jambu Subramanian
Their team quickly integrated into our workflow, demonstrating a deep understanding of our business needs. We were impressed by their professionalism and the ease with which they handled complex customer inquiries. Hugo's technical support team showed exceptional problem-solving skills, significantly reducing resolution times for order issues.
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Data sourced from the agency's DesignRush profileGoogle Meta Outschool Topicals Attentive Faire Sakara Aurora
Close more deals with ROI-focused lead acquisition
Our vision guides us to deliver measurable growth for businesses seeking call center services. Our team's communication skills elevate the impact of every lead generation and appointment-setting campaign, driving 95% retention and $10 ROI for every $1 invested. [... see all Belkins reviews ]- Location
- Denver, Colorado
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 11 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsBelkins Services
- Call Centers
- Email Marketing
- BPO
- CRM Consulting
- Business Consulting
- Direct Marketing
- Digital Marketing
- Customer Support
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
View Full Portfolio
Call Centers Project 56 Appointments for a SaaS Startup 
Appointment Setting Project Quality over Quantity: 21 Meetings for Japanese Thermal Management Solutions Company 
Appointment Setting Project Celerway Communication 
Appointment Setting Project Colorado Agency Hits 100% KPI and 100+ Appointments 
Appointment Setting Project Burch Energy 
Appointment Setting Project Monarch Studio
Reviews verified by DesignRush and sourced from the agency's profileBelkins Reviews & Testimonials
Patrick Benasillo CCO, EVP & Co-Founder at Visual Graphic Systems5.0★Lead Generation Review from Patrick Benasillo
Belkins nailed project management. Each stage of the outbound funnel was thoroughly calculated, allowing us to use data-driven insights to make informed decisions and making sure both sides implemented strategies effectively. Communication was clear and proactive, and they maintained full transparency throughout the process. In the first month, we closed our first contract, which was a promising start. Belkins helped us build a robust sales pipeline. Currently, we have four opportunities at the proposal stage, averaging $85K, with the potential for these contracts to grow up to $150K. We didn't expect to close deals and contracts so quickly. Belkins exceeded our expectations by not only creating a solid base for future work but also securing contracts right off the bat. Their ability to deliver quick and substantial results was very impressive.
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Rafael Co-CEO at Outstaff Company5.0★Appointment Setting Review from Rafael
Belkins played a crucial role in refining our customer profile and identifying key features of our ideal buyer. It meticulously researched relevant leads to construct a targeted contact list. Our partnership with Belkins commenced in May 2023, and by February 2024, it secured 51 appointments for us. With an impressive 43% open rate and a 3.7% reply rate, we exclusively focused on the United States market and the architecture industry. Thanks to Belkins' efforts, we expanded into the Canadian market and explored opportunities in other industry sectors. Hiring Belkins as our lead generation specialist ensured a consistent influx of new clients. We were impressed with the agency's efficient strategies.
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Allison Hill Business Development Manager at IT Services Company5.0★Lead Generation Review from Allison Hill
Belkins helped us define our ideal customer and find the right leads. They created targeted email sequences that highlighted our value in different ways. We started our collaboration 6 months ago and Belkins set 36 appointments for us. We saw a 57% open rate and a 5-6% reply rate. We focused on the U.S. market but now we're starting to expand to Canada and some European countries.
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Data sourced from the agency's DesignRush profileSekisui MONA Payment Cengage CitrusAd OpenTeleHealth (OTH) BinarApps DonorBox Simply NUC Grafi AI YorkTest
We Open. You Close.
A leader in the market since 2002, GenSales was a pioneer in the Appointment Setting and Lead Generation industry. Based in Denver, Colorado, GenSales is an outsourced sales enhancement company that specializes in decision-maker-directed sales activity. We are a sales support firm focused on helping companies [... see all GenSales reviews ]- Location
- Denver, Colorado
- Number of Employees
- Under 49
- Average Hourly Rate
- $20/hr
- Minimal Budget
- Under $1,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsGenSales Services
- Call Centers
- Digital Marketing
Reviews verified by DesignRush and sourced from the agency's profileGenSales Reviews & Testimonials
Kevin Founder at Information Services5.0★Call Centers Review from Kevin
I vetted several sales team partners and they seemed to be the best fit from the ease of onboarding, art, an science process, commitment to delivering on the outcomes, and willingness to create along the way.
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Jeff Owner at Tudi Mechanical Systems5.0★Call Centers Review from Jeff
GenSales is a very crucial component of our sales process. We rely heavily on their team to provide those appointments and get our name out in the marketplace.
Show more- Daniel Mahr Review from Google5.0★
Daniel Mahr's Review Sourced from Google
Been using GenSales for over a year. Their marketing team has done a great job getting us in front of quality leads. Looking forward to continue working with them for many years to come.
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Data sourced from the agency's DesignRush profileComcast TUDI Mechanical Lennox General Electric CenturyLink
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
- Denver, Colorado
- Number of Employees
- Under 49
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTAS United Services
- Phone Answering Services
- Call Centers
Reviews verified by DesignRush and sourced from the agency's profileTAS United Reviews & Testimonials
Cerena Schane Customer Relationship Management Manager at Airco Mechanical5.0★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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Viktoriia Bielkova Accountant at Congress Holding Group5.0★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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Dr. Shiree Flume Owner at Flume Psychiatry5.0★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
B2B Sales Conversations Start Here
CIENCE Technologies is a B2B Lead Generation and Sales Acceleration Company [... see all CIENCE Technologies reviews ]- Location
- Denver, Colorado
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsCIENCE Technologies Services
- Email Marketing
- Digital Marketing
- Call Centers
Reviews verified by DesignRush and sourced from the agency's profileCIENCE Technologies Reviews & Testimonials
Josh Kaye Founder at Bake Me A Wish1.0★Lead Generation Review from Josh Kaye
Complete Scam.Hired them for lead generation.Delivered bogus made up leads.Beat us for 10,000$.Zero return.Avoid at all costs.
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Josh Kaye Founder at Bake Me A Wish1.0★Email Marketing Review from Josh Kaye
I recently engaged Cience Lead Generation, paying $10,000 for 250 qualified leads, expecting a professional service and solid prospects. Unfortunately, what I received was far from that. The leads they presented were completely fabricatednone of the individuals or businesses had requested information about my company. In fact, we obtained sworn affidavits from many of these so-called "leads" affirming they had never heard of us or requested any information.This is a blatant scam, and we're now in the process of pursuing legal action against Cience to recover our full payment. If you are considering working with them for lead generation, I strongly urge you to reconsider. Their practices are fraudulent, and you risk losing a significant amount of money without getting anything of value in return. We were misled, and now we're facing the consequences of trusting this company. Dont make the same mistake.
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Joel Mantecon seo at Hirebook4.0★Financial Review from Joel Mantecon
I have worked with with the CIENCE team for over two years already. They provided my company with a team of SDRs that helped us with our lead generation efforts. Overall, we feel satisfied with our investment, as we have seen an increase in sales and organization.
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Data sourced from the agency's DesignRush profileMicrosoft SAP FIVESTARS Travel Tripper Raise Segmint Second Genome Classy
The B2B Growth Company
SalesHive is a B2B Lead Generation Agency that uses cold calling, email, and linkedIn to book meetings with qualified buyers by using our proprietary sales outreach platform and CRM. [... view SalesHive profile ]- Location
- Denver, Colorado
- Number of Employees
- 100 - 249
- Average Hourly Rate
- $50/hr
- Minimal Budget
- $1,000 - $10,000
- Portfolios Count
- 5 Projects Listed
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSalesHive Services
- Digital Marketing
- Call Centers
- Email Marketing
Comprehensive analysis done by DesignRush Agency Experts.Clients and Projects
View Full Portfolio
B2B Sales Outsourcing Project Market Research Company 
B2B Sales Outsourcing Project Procurement Software Company 
B2B Sales Outsourcing Project Staffing & Recruiting Platform 
B2B Sales Outsourcing Project Student Retention Platform 
B2B Sales Outsourcing Project Workplace Training Platform
Reviews verified by DesignRush and sourced from the agency's profileSalesHive Reviews & Testimonials
- Allan Reyes Review from Google5.0★
Allan Reyes's Review Sourced from Google
We can’t say enough great things about SalesHive! They helped us build our very first outbound strategy, and it’s been such a game changer for our business. Shoutout to our strategist, Tori—she’s been amazing to work with. She really took the time to understand our goals and guided us every step of the way.It was a little slow to start, but now we’re hitting our weekly goals, and the meeting progress has been fantastic. We’re honestly blown away by how much we’ve grown in such a short time.
Show more - Darren Ourth Review from Google5.0★
Darren Ourth's Review Sourced from Google
This is our first time using a lead generation company and I couldn't be more pleased with the performance of the people at SalesHive. From the initial sales process through onboarding to working with the team to build out the playbook, they walked us through every step of it. Once the program was kicked off the team was great, from the appointment setting to follow up to weekly update meetings, it was a real pleasure to work with them.If you are looking for a lead generation company that really knows there stuff, look no further than SalesHive.
Show more - Thaddeus Tague Review from Google5.0★
Thaddeus Tague's Review Sourced from Google
They booked us almost 30 meetings in 2 months. That's not normal even for them, but it was exactly what we needed. Shout out to Tykia Jackson, Michael Folling, Melissa, Liam, Madi, and the full team of people that handled our outbound with the specificity and expertise it deserved. Would 100% recommend these guys, and will be returning for more when we can.
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Data sourced from the agency's DesignRush profileShopify Asurion Plume YouGov CodeBroker
Premium Consulting & BPO Solutions
TTEC combines BPO services design, strategic consulting, technology platforms, and operations excellence to deliver experiences that captivate customers and dramatically improve the bottom line. They help companies reduce customer effort, enable contact center employees, and continuously optimize business [... view TTEC profile ]- Location
- Englewood, Colorado
- Number of Employees
- 1000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsTTEC Services
- Call Centers
- BPO
Data sourced from the agency's DesignRush profileWestcon-Comstor Texas Health Benefits Pool SELCO Credit Union
The New Age of Customer Experience
A global customer experience (CX) management solutions provider, Startek delivers best-in-class omnichannel CX, digital transformation, virtual receptionist, call and contact center, and enterprise tech services for leading brands, from Fortune 500s to fast-growing startups. [... view STARTEK profile ]- Location
- Greenwood Village, Colorado
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $25/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSTARTEK Services
- BPO
- Call Centers
Reviews verified by DesignRush and sourced from the agency's profileSTARTEK Reviews & Testimonials
- Karina Thompson Review from Google1.0★
Karina Thompson's Review Sourced from Google
Startek is the worst. They provide tech support for other companies... And they never seem to know what is going on. Poorly trained.
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Data sourced from the agency's DesignRush profileFlair Airlines Telkom Mercedes-Benz
- Alvaria delivers higher intelligence and efficiency for optimized customer experience (CX) and workforce engagement solutions that are scalable, resilient and secure with speed and pinpoint accuracy. [... view Alvaria profile ]
- Location
- Denver, Colorado
- Number of Employees
- 1000 & Up
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsAlvaria Services
- Digital Marketing
- Call Centers
Data sourced from the agency's DesignRush profileCitizens Financial Group The General RCN
Focused on Customer Satisfaction
SureCall stands as a 24/7/365 outsourced customer support and multimedia contact center, uniquely distinguished by its cutting-edge technology, adaptable architecture, and streamlined programs. [... view SureCall profile ]- Location
- Denver, Colorado
- Number of Employees
- 100 - 249
- Minimal Budget
- Under $1,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsSureCall Services
- Customer Support
- Call Centers
- Phone Answering Services
- BPO
Reviews verified by DesignRush and sourced from the agency's profileSureCall Reviews & Testimonials
- Kassy's Locker Review from Google5.0★
Kassy's Locker's Review Sourced from Google
Surecall Experts is a top-tier BPO call center known for exceptional customer service and professional outsourcing solutions. They offer businesses reliable support in areas such as customer care, technical assistance, and more. A good partner for your business!
Show more - Helius Review from Google5.0★
Helius's Review Sourced from Google
SureCall Experts provides excellent customer service through their call centre services. Their team's experience and efficiency come through, as they respond quickly to all questions. A reliable partner for smooth customer interactions.
Show more - Julie Berdin Review from Google5.0★
Julie Berdin's Review Sourced from Google
We have been a client of Surecall for well over 10 years. Surecall is an extension of our business and we continue to work closely with their team to ensure a high level of customer service.
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Data sourced from the agency's DesignRush profileFinance Industry Retail Industry Automotive Industry
For Every Voice, We Deliver a Solution
We help businesses connect with their customers through fast, friendly and reliable communication. [... view Vozaa Solutions profile ]- Location
- Denver, Colorado
- Number of Employees
- 250 - 499
- Average Hourly Rate
- $8/hr
- Minimal Budget
- $1,000 - $10,000
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsVozaa Solutions Services
- BPO
- Call Centers
- Customer Support
- Phone Answering Services
Data sourced from the agency's DesignRush profileMilestone Constraction Liku Transportation Naseba Animal Nutrition
Global Workforce Solutions Company
At Net2Source (N2S), staying ahead of the curve isnt optional its who we are. As a global Talent Company, Net2Source isnt just observing the future were building it. Our proprietary AI-powered recruiting engine enables us to deliver pre-vetted, on-demand talent at speed and scale. [... view Net2Source profile ]- Location
- Denver, Colorado
- Number of Employees
- 1000 & Up
- Average Hourly Rate
- $50/hr
Data sourced from the agency's DesignRush profile, its website, and other relevant accountsNet2Source Services
- HR Outsourcing
- Accounting
- BPO
- Business Consulting
- IT Services
- Call Centers
- AI Development
Reviews verified by DesignRush and sourced from the agency's profileNet2Source Reviews & Testimonials
- Jameika Ross Review from Google5.0★
Jameika Ross's Review Sourced from Google
Net2Source is an amazing company that helped me find my dream career. Initially, I was skeptical, as I had never heard of the company. However, after they set up an interview with the hiring manager the very next day after speaking with them, I decided to give them a chance.Net2Source connected me with an ideal job opportunity that matched my skills and experience. During my 18-month contract, the team was attentive and supportive. While I did not require much, they promptly resolved any concerns I had. I never had issues with pay, timekeeping or anything that most people worry about. The overall experience was so positive that I accepted the company's offer of a full-time position, and I will be relocating to advance my career. I am truly grateful to Net2Source for this life-changing experience!The staff is friendly and very helpful. Mamita Maharjan, my amazing account manager, has skills I have not encountered in a long time. She was knowledgeable, pleasant, and professional, making the process very smooth from my first call after my interview all the way to the conversation regarding my conversion.Employment firms may not be for everyone, but I would highly recommend speaking with Net2Source to anyone seeking a new job or career change.
Show more - Matthew Beard Review from Google5.0★
Matthew Beard's Review Sourced from Google
I’ve been with Net2Source for the past 8 months, and it’s been an incredible journey so far. The work-life balance here is exceptional. The flexibility and understanding from the leadership team have allowed me to maintain a healthy balance between my professional and personal life.Additionally, the company culture is amazing. It’s a supportive, collaborative environment where everyone’s contributions are valued. The team is always willing to lend a helping hand, and there’s a genuine sense of camaraderie among colleagues. It's a place where you feel encouraged to grow and thrive both personally and professionally.I’m grateful for the opportunity to work here and look forward to many more successful months with Net2Source!
Show more - archit sharma Review from Google5.0★
archit sharma's Review Sourced from Google
I recently completed over six incredible years with Net2Source Inc. This is an amazing organization, and I couldn’t be more grateful for the journey so far. The work culture here is truly inspiring, fostering growth, collaboration, and positivity at every level. I have had the privilege of working alongside some of the most supportive and talented coworkers, who make every challenge feel achievable.What truly sets this company apart is its management team—forward-thinking, approachable, and genuinely invested in the success of every employee. They consistently motivate us with exciting initiatives, clear communication, and a genuine commitment to creating a thriving workplace.This is a place where your hard work is recognized, and opportunities for growth are abundant. I am proud to be a part of an organization that values its employees and strives to bring out the best in everyone.
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Data sourced from the agency's DesignRush profileSoftware & IT Services Industry Health Care Industry Finance Industry Manufacturing Industry Insurance Industry
Related Services in Colorado
Call Center Companies in Colorado
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.
Andrija Savić is an accomplished and highly competent sales professional with record-breaking achievements. His work at BSC Kragujevac, a leading European NGO affiliated with SPARK Netherlands, resulted in a 24% increase in course completion rates. While at Global Media Box, his team contributed 26.5% of the company's monthly sales in just seven months. Since becoming the Director of Client Relationships at DesignRush, the business has gained a 700% revenue increase, a testament to his proven competency and dedication to customer satisfaction.















