If you're searching for the best cold email agency and keep running into Belkins vs Cience in every comparison — you're not alone. Those two get mentioned everywhere. But most of those comparison articles are either written by Belkins themselves or by affiliates who've never actually run a cold email campaign. So I figured I'd give you a real breakdown — including us (Arvani Media) — so you can actually make a decision without the fluff.
I'm Anthony, I'm 24, and I run Arvani Media. We're a done-for-you B2B outbound system that books meetings through cold email. I've personally studied how Belkins and Cience operate because, well, they're the big names in the space. And I'll be straight with you — they're both solid companies. But they're not the right fit for everyone, and depending on your budget, team size, and goals, you might be overpaying for things you don't need.
Why Choosing the Right Cold Email Agency Matters in 2026
Cold email in 2026 is a completely different animal than it was a few years ago. Google and Microsoft have cracked down on bulk sending, spam filters are smarter, and deliverability has become the single biggest bottleneck for outbound teams. Picking the wrong agency doesn't just waste money — it can literally burn your domain reputation and make it harder to do outbound in the future.
The agencies that win right now are the ones that understand infrastructure (domain setup, warmup, rotation), targeting (knowing who to email and why), and copy that doesn't read like a template. Everything else is noise.
So when you're comparing the best cold email agency options — Arvani Media vs Belkins vs Cience — the real question isn't "who's biggest?" It's "who's going to get me booked meetings without wrecking my sender reputation?"
Best Cold Email Agency Feature Comparison Table
Before we get into the details on each agency, here's a side-by-side so you can see how things stack up at a glance:
| Feature | Arvani Media | Belkins | Cience |
|---|---|---|---|
| Primary Channel | Cold email (done-for-you) | Cold email + LinkedIn + calling | Multi-channel (email, phone, LinkedIn, SMS, ads) |
| AI Integration | AI-powered copy, reply classification, lead scoring | A/B testing, Folderly deliverability tool | graph8 AI platform for orchestration |
| Setup Fee | None | None (bundled into monthly) | $2,500–$5,000 one-time |
| Monthly Cost | Transparent, lower entry point — see pricing | $5,000–$15,000/mo | $4,200–$9,000/mo |
| Contract Length | Flexible, month-to-month available | 3–6 month minimum | Varies (month-to-month options) |
| Best For | SMBs, startups, lean sales teams | Mid-market with defined ICP | Enterprise-scale outbound |
| Deliverability Focus | Full infrastructure management (domains, warmup, rotation) | Folderly tool (separate product) | Included in platform |
| Lead List Building | Done-for-you B2B lead list building | Included with dedicated researchers | GO Data platform + intent signals |
| Reporting | Real-time dashboards with buying signal tracking | Weekly reports + CRM integration | Platform analytics + CRM sync |
Arvani Media — The Lean, AI-First Cold Email Agency
Ok yeah, I'm biased — but I'll tell you exactly why we built Arvani Media the way we did and you can decide if it makes sense for you.
We focus on one thing: cold email that books meetings. We don't try to be a full SDR outsourcing firm. We don't bolt on 6 different channels and charge you for all of them. We handle the entire cold email system — infrastructure, list building, copy, sending, and reply management — so you just show up to calls.
What Makes Arvani Different
We use AI across the whole workflow. Not as a buzzword — like, actually integrated into how we operate. Our AI reply classification sorts positive replies from out-of-office and "not interested" automatically so nothing falls through the cracks. Our copy process uses AI drafting plus human editing because fully AI-written cold emails still sound... like AI wrote them.
We also manage your entire sending infrastructure. That means domain purchasing, DNS configuration, warmup, rotation schedules — all the stuff that most founders don't want to think about but that determines whether your emails land in inbox or spam.
Arvani Media Pros
- Lower cost than Belkins or Cience, with transparent pricing
- No long contracts — flexible month-to-month options
- AI-powered workflow from list build to reply sorting
- Full deliverability management handled for you
- Fast onboarding — campaigns can launch quickly
- Built specifically for startups, SMBs, and lean sales teams
Arvani Media Cons
- Smaller team than Belkins or Cience (we're growing, but we're not a 200+ person operation)
- Cold email focused — if you need cold calling or LinkedIn DMs managed for you, that's not our core
- Newer brand — less industry recognition than the bigger agencies (for now)
Belkins — The Established Multi-Channel Player
Belkins is probably the most recognized name in B2B outbound lead generation right now. They've worked with 800+ clients, they consistently rank high on Clutch, and they have a big team with dedicated researchers, copywriters, and SDRs assigned to each account.
How Belkins Works
Belkins packages their services by appointment volume — think 30+, 100+, or 200+ appointments per year. They combine cold email sequences with LinkedIn outreach and cold calling into a coordinated campaign. They also run Folderly, which is a separate deliverability tool that helps with inbox placement.
The approach is structured and process-driven. If you have a well-defined ICP and you just need somebody to run the outbound machine, Belkins does that well.
Belkins Pros
- Proven track record with 800+ clients
- Multi-channel approach (email + LinkedIn + calling)
- Dedicated team per client (researchers, copywriters, SDRs)
- Folderly for deliverability optimization
- Strong Clutch rankings and industry recognition
Belkins Cons
- Expensive — $5,000–$15,000/month is a serious budget commitment
- Long contracts — typically 3–6 month minimums
- Less flexibility for early-stage companies with evolving ICPs
- Large agency = you might not get the most senior people on your account
- Deliverability tool (Folderly) is a separate product — can add to total cost
Cience — Enterprise-Scale Outbound Infrastructure
Cience is less of a traditional cold email agency and more of an outbound infrastructure platform with managed services layered on top. They built graph8, their proprietary AI platform, which handles intent data, audience intelligence, and campaign orchestration across email, phone, LinkedIn, SMS, and even programmatic ads.
How Cience Works
Cience's model combines technology (the graph8 platform) with managed SDR services. You get the platform for multi-channel orchestration plus actual humans executing the campaigns. There's a one-time setup fee ($2,500 for startups, $5,000 for established companies) plus monthly fees.
The intent data and audience intelligence built into graph8 is legitimately interesting — it means your targeting can incorporate buying signals and behavioral data rather than just static firmographic filters.
Cience Pros
- True multi-channel — email, phone, LinkedIn, SMS, ads all coordinated
- graph8 AI platform with built-in intent data
- Enterprise scale — built for large outbound operations
- Month-to-month options available
- Data platform included (no separate data vendor needed)
Cience Cons
- Upfront setup fee of $2,500–$5,000 before your first email goes out
- Complexity — the platform is powerful but can be overkill for simple cold email
- Process-driven — less personalized attention per account
- Better suited for enterprise; SMBs may not get the same ROI
- Market position has shifted — some reports suggest they've lost ground to newer competitors
Pricing Breakdown: What You Actually Pay for the Best Cold Email Agency
Pricing is where most comparison articles get vague. So let me lay out what you're actually looking at with each agency:
| Cost Element | Arvani Media | Belkins | Cience |
|---|---|---|---|
| Setup Fee | $0 | $0 (bundled) | $2,500–$5,000 |
| Monthly Fee | Lower entry — check current pricing | $5,000–$15,000 | $4,200–$9,000 |
| Contract Minimum | Flexible / month-to-month | 3–6 months | Varies |
| Total Year 1 Min. Cost | Significantly lower | ~$15,000–$90,000 | ~$52,900–$113,000 |
Here's what matters though — cost per booked meeting. You can spend $15k/month with a big agency, but if the meetings aren't qualified, that money is gone. A strong cold email offer paired with the right targeting will outperform a massive budget with generic messaging every single time.
For context, if you're in a specific vertical like SaaS, financial services, or commercial real estate, the agency's experience in your niche matters way more than their total client count.
Verdict: Which Is the Best Cold Email Agency in 2026?
Look, all three agencies book meetings. But they serve very different buyers:
Choose Belkins if: You're a mid-market or enterprise company with $5k+/month to invest, a clearly defined ICP, and you want a recognized name running a multi-channel outbound program. You're ok with 3–6 month commitments and want a structured, proven process.
Choose Cience if: You need enterprise-scale outbound across every channel imaginable, you want built-in intent data and AI orchestration, and you have the budget for setup fees plus monthly retainers. Best for large sales orgs building systematic pipeline.
Choose Arvani Media if: You want a focused cold email system that actually works without the enterprise price tag. You want flexibility (no long lock-in contracts), AI-powered workflows that handle the tedious stuff, and a team that's obsessed with deliverability and reply quality over vanity metrics. You'd rather work with a founder-led agency that moves fast than a 200-person operation where you're account #847.
If you're a startup, SMB, or growth-stage company that needs meetings on the calendar without dropping $10k/month — that's literally why we exist.
See Why CEOs Choose Arvani Media
We build the entire cold email system for you — infrastructure, lists, copy, sending, and reply management. No long contracts. No setup fees. Just booked meetings.
FAQ: Best Cold Email Agency — Arvani Media vs Belkins vs Cience
For startups and lean sales teams, Arvani Media is typically the best fit. Unlike Belkins ($5k–$15k/month with long contracts) or Cience ($2.5k–$5k setup + monthly fees), Arvani offers flexible month-to-month arrangements at a lower price point while still providing full done-for-you cold email — from list building to infrastructure management to AI-powered reply classification.
Cold email agency costs in 2026 range widely. Belkins charges $5,000–$15,000/month with 3–6 month commitments. Cience runs $4,200–$9,000/month plus a setup fee. Arvani Media offers a lower entry point with transparent, flexible pricing. The real cost depends on your campaign scope, number of contacts, and channels. Check our full cold email agency pricing breakdown for details.
Belkins is a solid agency with a proven track record and 800+ clients. They're worth it if you have the budget ($5k+ monthly), want multi-channel outbound (email + LinkedIn + calling), and have a well-defined ICP. However, if you're an early-stage company still testing your market or you primarily need cold email done right, you might get better ROI with a more focused, affordable agency.
Belkins is a full-service lead gen agency — dedicated team, structured campaigns, strong in cold email plus LinkedIn. Cience is more of an outbound infrastructure platform with managed services — they built graph8 for AI-powered multi-channel orchestration including email, phone, SMS, and even ads. Belkins is better for companies wanting a hands-off managed service. Cience is better for enterprise teams that want a technology platform plus SDR support at scale.
Yes — and this is a huge risk people don't talk about enough. If an agency sends from your primary domain without proper infrastructure (separate sending domains, DNS authentication, warmup, rotation), you can permanently damage your deliverability. Always ask how the agency handles sending infrastructure before signing. At Arvani Media, we set up and manage separate sending domains specifically to protect your main domain.