Belkins or CIENCE? The 2026 Agency Comparison

Two Different Shapes of Agency

Belkins and CIENCE both book meetings, but they are built very differently.

Belkins is a focused, US-based, email-led appointment-setting agency. Its strength is deliverability infrastructure and a clear booked-meeting deliverable, usually in the roughly $4,000-$8,000/mo range on 3-6 month contracts. It fits teams selling $5K-$50K deals that want an email-first motion handled for them. The tradeoff is that it is primarily email, and clients often supply or buy their own data.

CIENCE is a large, multichannel outsourced-SDR agency with its own data platform (graph8) for intent and orchestration across email, phone and LinkedIn. It fits mid-market and enterprise teams that want a full SDR function across channels, typically at $10,000-$25,000+/mo, month-to-month. The tradeoffs are higher cost, a 30-60 day ramp and the uneven delivery that can come with a very large org (around 3.7/5 on G2).

The honest summary

Choose Belkins for a focused, affordable, email-led motion with deliverability handled. Choose CIENCE for a bigger, multichannel SDR function with its own data, if you have the budget and patience for ramp. Both, though, are activity-led models.

How to Choose

Choose Belkins if:

• You sell $5K-$50K deals and want an email-led motion handled for you.
• Budget is ~$4K-$8K/mo and deliverability is your main worry.
• You can supply data or are happy to buy it.

Choose CIENCE if:

• You want multichannel SDR across email, phone and LinkedIn.
• You are mid-market or enterprise with $10K-$25K+/mo and can wait 30-60 days to ramp.
• You value a built-in data platform with intent signals.

Choose FlowStrata if:

• You want signal-based, done-for-you outbound that triggers on real buying events.
• You want one team to own data, copy and deliverability, not seats or a list to supply.

How FlowStrata Does It Differently

We do not sell SDR seats or charge a retainer for activity. We build the engine and run it: verified data, behavioral copy, dedicated warmed domains, daily deliverability monitoring and reply handling, with outreach triggered the moment a prospect hires, raises or shows buying intent. You take the calls. We own the meetings-booked outcome.