Updated August 2026
CallStar logoCallStar | Cold calling in United States
About CallStar
Business communications company providing call center services, inbound and outbound calling, appointment scheduling and customer support.
Services listed
Publicly listed services for CallStar in this directory:
Who this listing is for
B2B founders, sales leaders, and marketers comparing outbound agencies in United States — especially teams evaluating cold calling, or considering ScaliQ as in-house LinkedIn outreach software instead of outsourcing.
Agency vs ScaliQ
CallStarOutsourced prospecting and booking, run by an external team.
ScaliQPersonalized LinkedIn outreach, follow-ups, and replies from your own accounts.
CallStar specializes in call center operations, while ScaliQ automates digital outbound prospecting with AI.
Alternatives and similar agencies
Other directory listings that may fit a similar outbound brief. Not a ranking — compare profiles and public contact links.
Callbox logoCallbox
United States
Global B2B lead generation company providing multi-channel outbound marketing, appointment setting, database services and sales support across multiple regions.
Upcall logoUpcall
United States
On-demand outbound calling platform connecting businesses with trained US-based callers for lead qualification, follow-up and customer engagement.
Specialty Answering Service logoSpecialty Answering Service
United States
24/7 answering service provider offering live virtual receptionists, call answering, dispatching, order taking and customer support for businesses across multiple industries.
Looking for an alternative to hiring a lead generation agency?
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LinkedIn outreach, follow-ups, and reply handling directly from your account.
Or browse the full agency directory · LinkedIn outreach tools.