Who wrote this, and how. I run outbound for B2B clients myself, so every agency on this page is a competitor of mine. Treat this as one operator's read rather than an independent rating. Everything factual here comes from the vendor's own website, quoted where it matters. I have deliberately published no review scores or star ratings, because I could not verify most of them first hand and a wrong number attached to someone's company is not worth the page.
In short
Callbox is the most genuinely multilingual and multi-region vendor here, with staffed offices across four continents. It is also the most expensive entry point, and its own site contradicts itself on price.
At a glance
| Headquarters | Encino, California, US |
|---|---|
| Founded | 2004 |
| Pricing | Published |
| Channels | cold calling, cold email, LinkedIn, web retargeting, chat, webinars and events |
| Delivery model | Dedicated multi-role pod, delivered largely offshore: 'a dedicated team (Customer Success Manager, Production Manager, Sales Development Reps, Research & Data Analysts, and Digital Marketers)', with the bulk of operations in the Philippines |
| How they describe themselves | "B2B Lead Gen powered by Human + AI." |
How they charge
Subscription, priced per campaign pod. They publish an estimated monthly range on the pricing page, and a different quarterly range on the pricing FAQ. The two do not reconcile. They state explicitly that they do not charge per lead.
Published figures. These are quoted from callboxinc.com. Prices change, so check the source before you rely on them.
Where they are strong
Real local delivery rather than claimed coverage: staffed teams across the US, UK, Australia, Singapore, Malaysia, Hong Kong and Colombia, with localised campaigns per market. Founded in 2004, which makes it the oldest vendor here.
The trade-off
The highest entry cost in this comparison, and the bulk of delivery runs offshore from the Philippines, which is a different proposition from the onshore teams some competitors sell. The contradictory published pricing is a small thing that tells you the number will be set in conversation anyway.
Markets and coverage
Own FAQ: 'We operate in multiple time zones with teams in the US, UK, Australia, Singapore, Malaysia, Hong Kong, and Colombia, delivering localized campaigns tailored to each market's language and business culture.' Site claims 60+ countries and coverage across North America, APAC, EMEA and LATAM, with GDPR-compliant EU outreach. Pricing FAQ notes price 'varies depending on ... supported languages'.
Who it fits
Mid-market and enterprise technology companies entering several geographies at once, who need phone-led multilingual coverage from one vendor and have a five figure monthly budget.
When to look elsewhere
Smaller teams, single-market campaigns, and anyone whose buyers do not answer the phone.
Alternatives worth shortlisting
The useful comparison is rarely feature by feature. It is whether the vendor publishes a price, which channels they actually run, and whether they cover your market. Those three sort the list fast.
| Agency | Pricing | Channels | Best for |
|---|---|---|---|
| Belkins | Not published | cold email, LinkedIn, omnichannel outbound | US mid-market, omnichannel |
| CIENCE | Published | cold email, cold calling, LinkedIn | Itemised build plus flexible SDRs |
| Cleverly | Published | LinkedIn, cold email, cold calling | Cheapest entry, LinkedIn led |
| Martal Group | Not published | cold email, LinkedIn, cold calling | Senior onshore reps who close |
| SalesRoads | Not published | cold calling, cold email | US phone, cancel anytime |
| memoryBlue | Not published | outbound SDR and BDR prospecting, demand generation, SEO and | Trains reps you can hire |
| Hlib Storchak | Published | cold email, LinkedIn | Baltics to Nordics, one operator |
See all 13 agencies compared side by side, including how each one charges.
Where I fit, and when I do not
Founder led, from Vilnius. Cold email and LinkedIn as one motion, with the targeting and the offer fixed before anything sends. Published: consulting and fractional GTM from EUR 3,000 a month, done for you outbound from EUR 7,000 a month. Flat monthly fee, no per meeting pricing.
I am the right call when B2B teams selling into the Baltics, Nordics, wider Europe or the US who want one person accountable for the whole motion rather than a pod, and who want to keep the system afterwards.
I am the wrong call when If your deal size cannot support a four figure monthly retainer, if you need cold calling as the primary channel, or if you need a large vendor's bench, I am the wrong choice and I will say so on the call.
Frequently asked
How much does Callbox cost?
Subscription, priced per campaign pod. They publish an estimated monthly range on the pricing page, and a different quarterly range on the pricing FAQ. The two do not reconcile. They state explicitly that they do not charge per lead.
Who is Callbox a good fit for?
Mid-market and enterprise technology companies entering several geographies at once, who need phone-led multilingual coverage from one vendor and have a five figure monthly budget.
When is Callbox the wrong choice?
Smaller teams, single-market campaigns, and anyone whose buyers do not answer the phone.
Is this review independent?
I run outbound for B2B clients myself, so every agency on this page is a competitor of mine. Treat this as one operator's read rather than an independent rating. Everything factual here comes from the vendor's own website, quoted where it matters. I have deliberately published no review scores or star ratings, because I could not verify most of them first hand and a wrong number attached to someone's company is not worth the page.
Why are there no star ratings on this page?
Because I could not verify most of them first hand. Review platforms block automated reading, and the figures circulating in other agencies' comparison articles disagree with each other. Publishing a number I cannot stand behind, attached to a named company, is not worth the page. What I can verify is what each vendor publishes about itself, so that is what this compares.