Best United States Lead Generation Companies

7 Companies - Rankings updated: September 05, 2026

Every agency on DesignRush meets evaluation criteria around expertise and client feedback to empower informed choices. Some listings include paid partnerships.

United States × California × Lead Generation × HR × Clear Filters
  • 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...

    Top Services:

    • Managed Services
    • Cloud Consulting
    • Digital Marketing
    • ERP Consulting
    • CRM Consulting
    • Show more
    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
      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
      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
      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
  • We create digital products and grow with our partners!

    Rocketech is a software development company collaborating with 100+ Middle and Senior level IT and business professionals and specialising in analytics-driven web and mobile development. Our team has released 150+ products for 100+ startups and enterprises...

    Top Services:

    • Mobile App Development
    • Web Development
    • Software Development
    • Blockchain
    • UI/UX Design
    • Show more
    Location
    San Francisco, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $30/hr
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    14 Projects Listed

    Rocketech Development Services

    • Mobile App Development
    • Web Development
    • Software Development
    • Blockchain
    • UI/UX Design
    • Digital Services
    • Managed Services
    • Business Consulting
    • Market Research
    • IT Services
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Walmart
    • Unilever
    • Vodafone
    • Saudi Aramco
    • IQ Option
    • HAYS
    • McKensey & Company
    • DBS
    • Aleta Planet
    • Halyk Bank
    Data sourced from the agency's DesignRush profile

    Rocketech Development Reviews & Testimonials

    • Andrey Bezsonov
      Andrey Bezsonov Lead at Absolute Live Gaming
      5.0

      Web Development Review from Andrey Bezsonov

      We tasked Rocketech with building a roulette system that could live-stream game results directly from an offline casino. There were 3 iterations of the project. The solution has mobile and web versions, supports more than 30 integrations, and provides different monetization channels. Overall, we saved 9 times the budget, while getting high-quality services. The platform handles more than 20K players worldwide and 2 million bets a year. Weve been successful on the market for more than 5 years.

    • Victoria Oros
      Victoria Oros CEO at Zuzan Global Soultions
      5.0

      Software Development Review from Victoria Oros

      ROCKETECH helped us set up the development of our scheduling service. Professional developers, great support, good communication and synchronization with the core team. What was it about the company that you didn't like, what should they do better? Duration of recruiting process, good developers is hard to find good if you can make it faster in few days Coaching of Product owner more deeply

    • Ainar Abdrakhmanov
      Ainar Abdrakhmanov CEO & Founder at Babystep TV
      5.0

      Design Services Review from Ainar Abdrakhmanov

      Babystep is a Learning Management Platform (LMS) for parents who want to implement innovative teaching methods into their kids' learning curve. The platform connects parents to learning experts and provides accessible consults all over the world. The website combines the functionality of a social media and marketplace, serving as a ground for communication, blogging, and service exchange.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Social Media, Content Marketing & Podcasting Agency

    Content marketing agency helping brands grow audiences, generate demand, and turn attention into revenue through social media, SEO, AI discoverability (GEO), podcasting, and full-funnel systems...

    Top Services:

    • Social Media Marketing
    • Content Marketing
    • Digital Services
    • Video Production
    • Branding
    • Show more
    Location
    Irvine, California
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000
    Portfolios Count
    8 Projects Listed

    Venture Media Services

    • Social Media Marketing
    • Content Marketing
    • Digital Services
    • Video Production
    • Branding
    • Digital Strategy
    • Graphic Design
    • Digital Marketing
    • SEO
    • Video Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Verizon
    • PBS
    • Bose
    • Scaling With Systems
    • Bear Bull Traders
    • Backstage Careers
    • Sleep.me
    • Eden
    • American University
    • Nokia
    Data sourced from the agency's DesignRush profile

    Venture Media Reviews & Testimonials

    • Arash Bereliani, MD, FACC
      Arash Bereliani, MD, FACC Owner at @drbtheheartdoc
      5.0

      Video Production Review from Arash Bereliani, MD, FACC

      Working with Sam and his team at Venture Media has been a game-changer for my social media. In less than 10 months, they took my account from under 1,300 followers to over 26K, with more than 12 million organic views. The process is seamless. They handle almost everything. If youre busy but want to grow your brand, I highly recommend working with them

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • Leading Web and Mobile App Development Company in India, USA, & AUS

    Techcronus Business Solutions is a global provider of enterprise business solutions and modern-day technology services...

    Top Services:

    • Mobile App Development
    • Web Development
    • PPC
    • SEO
    • UI/UX Design
    • Show more
    Location
    Los Angeles, California
    Number of Employees
    50 - 99
    Average Hourly Rate
    $25/hr
    Portfolios Count
    14 Projects Listed

    Techcronus Business Solutions Pvt. Ltd. Services

    • Mobile App Development
    • Web Development
    • PPC
    • SEO
    • UI/UX Design
    • Software Development
    • CRM Consulting
    • ERP Consulting
    • Cloud Consulting
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • BTCX
    • Ferrero
    • IKEA
    • Jumeirah
    • Lavazza
    • Starbucks
    • Taco Bell
    • Unilever
    Data sourced from the agency's DesignRush profile

    Techcronus Business Solutions Pvt. Ltd. Reviews & Testimonials

    • Sophia Bendz
      Sophia Bendz CEO at Neilson Tech Solutions
      5.0

      Web Development Review from Sophia Bendz

      Its a pleasure to connect and collaborate with Techcronus, the whole team is fantastic to work with especially the CEO who is a star performer, the company is providing technical advise to my tech aided start up. I am glad that I got in touch with Techcronus and wish to have a long lasting business collaboration with them. Always to the point and full of tech ideas.

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews
  • #1 B2B Lead Generation Agency

    Outbound System is a done-for-you B2B lead generation agency that books 20-40+ qualified meetings per month using AI-powered cold email, LinkedIn outreach, and cold calling (standalone or bundled) - live in 5 days, month-to-month, with 86,000+ meetings booked across 23,000+ campaigns...

    Top Services:

    • Email Marketing
    • Digital Marketing
    Location
    Los Angeles, California
    Number of Employees
    Under 49
    Minimal Budget
    $1,000 - $10,000

    Outbound System Services

    • Email Marketing
    • Digital Marketing
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Tortoise Finance
    • MBO Ventures
    • Transworld Business Advisors
    • Echo Agency
    • Maverick Strategies
    • Automation Anywhere
    • Value Buddy
    • Red Rock Securities Law
    • FireVibe Web Design
    • Lead Marvels
    Data sourced from the agency's DesignRush profile
  • Fueling Your Brands Boldest Moves

    At Brand Pro Max, we don't just market we ignite movements. Were the spark that turns brands into bold, unforgettable experiences. Fueled by creativity, driven by data, and powered by community vibes, we break the mold of traditional marketing. We create connections that last, laughs that echo, and growth...

    Top Services:

    • SEO
    • Social Media Marketing
    • Web Development
    • Video Production
    • PPC
    • Show more
    Location
    Cerritos, California
    Number of Employees
    Under 49

    Brand Pro Max Services

    • SEO
    • Social Media Marketing
    • Web Development
    • Video Production
    • PPC
    • Email Marketing
    • Content Marketing
    • Web Design
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Cyrano Video
    • Tie SoCal
    • Think AI
    • Paragon Dental
    • ABAOC
    • Recurring Revenue Confrence
    • Shift Karado
    • Optizm Global
    • Startup Steroid
    Data sourced from the agency's DesignRush profile
  • Targeted Lead Generation. Bespoke Marketing.

    NetLine is a leading business-to-business (B2B) marketing agency specializing in performance-driven lead generation. Leveraging cutting-edge AudienceTarget technology, NetLine captures precise buyer intent and builds detailed professional personas to drive targeted marketing efforts. With over twenty years of...

    Top Services:

    • Content Marketing
    • Advertising
    Location
    Campbell, California
    Number of Employees
    100 - 249

    NetLine Corporation Services

    • Content Marketing
    • Advertising
    Data sourced from the agency's DesignRush profile, its website, and other relevant accounts
    • Citrix
    • Archer Malmo
    • MasterControl
    Data sourced from the agency's DesignRush profile

    NetLine Corporation Reviews & Testimonials

    • Matthew Pieper
      Matthew Pieper Review from Google
      1.0

      Matthew Pieper's Review Sourced from Google

      Every day they call our place of business. Every day they ask about someone who hasn't had any affiliation for almost 10 years. Then they argue with us about the persons name and who they are calling. Then they call back the next day to do it all over again. What a typical garbage marketing company.

    • Rosemary Brisco
      Rosemary Brisco Review from Google
      5.0

      Rosemary Brisco's Review Sourced from Google

      I have been using Netline for two years to generate leads for our B2B clients. Netline is a low-cost way to drive leads from target accounts and receive full contact details for those leads. ToTheWeb LLC

    • Drake Hatfield
      Drake Hatfield Review from Google
      1.0

      Drake Hatfield's Review Sourced from Google

      "We are calling you because you showed interest in our publication. We will be sending you..."

    Reviews verified by DesignRush and sourced from the agency's profile View All Reviews

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