Quick answer
Delphi Partners vs Outbound Pros is a comparison of two B2B outbound lead-generation agencies with different strengths.
Delphi Partners appears to fit buyers who want a cold email specialist and are comfortable evaluating a provider with very limited public information. Their strongest public signal is that Benjamin Mckinzey is listed in the Smartlead partner directory, which indicates a vetted cold-email agency using that platform.
Outbound Pros is a better fit if you want managed outbound built around deliverability, owned sending infrastructure, and coordinated email plus LinkedIn instead of email alone. We also suit teams that want live reporting, founder-led execution, and a clear ramp from setup into meeting volume. If your shortlist is really about cold email only, Delphi Partners may belong on it. If you want a more transparent multi-channel outbound system, I'd lean Outbound Pros.
Delphi Partners vs Outbound Pros: At a Glance
| Dimension | Delphi Partners | Outbound Pros |
|---|---|---|
| Best for | Buyers seeking a cold email-focused agency and comfortable with thin public data | Teams wanting deliverability-first managed outbound across email + LinkedIn |
| Model | Agency listed in the Smartlead partner directory | Founder-led managed outbound agency |
| Channels | Cold email is the only channel we can support from public data | Email + LinkedIn run as one coordinated sequence |
| Pricing | Not publicly published | Service-based $1.5K-$10K/mo, with hybrid retainer + per-meeting option for trust accounts |
| Deliverability focus | Smartlead partner listing suggests cold email platform expertise | Dedicated owned domains, SPF/DKIM/DMARC, 4-6 week warm-up, target 85-95% inbox placement |
| Reporting | Not publicly published | Live dashboard + monthly interpreted report |
What is Delphi Partners?
Delphi Partners is a cold email agency profile we can only partially verify from a partner directory listing.
(Note: at the time of writing, Delphi Partners has no published client reviews or public pricing, so this profile reflects its stated services rather than third-party verified outcomes.)
The main public fact available is that Benjamin Mckinzey is listed in the Smartlead partner directory as a certified partner or expert. That listing means Delphi Partners is presented there as a vetted cold-email agency using the Smartlead sending platform.
Beyond that, we do not have verified public details on team size, location, pricing, client results, or service scope. So the fair way to compare Delphi Partners is by positioning: they appear to sit in the cold-email-agency camp, while Outbound Pros is built around coordinated email and LinkedIn outbound with a heavier emphasis on owned infrastructure and reporting.
What is Outbound Pros?
Outbound Pros is a founder-led managed outbound agency built for B2B teams that want email and LinkedIn run as one system.
I run Outbound Pros at outboundpros.io, and our model is hands-on rather than layered with a heavy account-management structure. We have 36 active client campaigns and have launched 1500+ campaigns.
Our core specialty is deliverability. We set up dedicated owned domains per client, document SPF, DKIM, and DMARC, warm accounts for 4-6 weeks, and target 85-95% inbox placement before scaling volume.
We use Salesforge for sending, Clay for enrichment and AI personalization, Leadsforge plus Apollo for sourcing, Warmforge for warm-up, and Agent Frank as an optional AI SDR layer. Replies from email and LinkedIn flow into Primebox, which gives clients one unified inbox instead of split channel operations.
We onboard in about 21 days, spend month 1 on infrastructure, and usually use months 2 and 3 to ramp toward 15-30 meetings per month. For teams comparing process quality, our thinking on channel mix is laid out in linkedin vs email when to use which channel for b2b outbound 2026.
Where does Delphi Partners win?
Delphi Partners wins where a buyer wants a simpler cold-email-first evaluation.
- Their clearest public credential is the Smartlead partner listing. If you're specifically looking for an agency associated with that sending platform, that is a relevant signal.
- They may appeal to teams that do not want a broader multi-channel program and instead want to stay focused on cold email.
- If your internal team already has LinkedIn motion, reporting, and process layers covered, a specialist cold email shop can be a reasonable lane.
Because the public data is thin, I would not stretch this beyond channel and platform fit.
Where does Outbound Pros win?
Outbound Pros wins for buyers who care about deliverability discipline, visibility, and coordinated execution across channels.
- We run email and LinkedIn together as one sequence, not as disconnected motions. That matters when email needs social reinforcement or when LinkedIn carries conversations that start cold.
- Deliverability is the center of the service, not a side task. Dedicated owned domains, documented SPF/DKIM/DMARC, and a 4-6 week warm-up period are more explicit than anything publicly available from Delphi Partners.
- We give clients a live dashboard plus a monthly interpreted report covering volume, quality, funnel, and ROI. With Delphi Partners, no public reporting model is available.
- Our replies land in Primebox, so teams get one place to manage email and LinkedIn responses.
- We use a modern stack with Salesforge, Clay, Leadsforge, Apollo, Warmforge, and optional Agent Frank. For buyers evaluating AI SDR coverage, this guide may help: ai sdr buyer guide 2026.
- Our pricing is transparent enough to pre-qualify. That reduces friction for teams that want to compare options without a long sales process first.
Pricing: Delphi Partners vs Outbound Pros
Pricing is one of the clearest differences in transparency between these two options.
Delphi Partners does not publish pricing in the data we have. That does not mean they are expensive or inexpensive. It simply means you will need to contact them to understand how they structure fees.
Outbound Pros is more explicit. Our service-based pricing ranges from $1.5K to $10K per month, with common tiers around $1.5K, $3K, and $5K. For trust accounts, we also offer a hybrid retainer plus $25 to $50 per meeting above a baseline.
If you want a quote before taking calls, Outbound Pros is easier to pre-screen. If you're fine with a custom-pricing conversation and your priority is a Smartlead-aligned cold email shop, Delphi Partners may still be worth contacting.
Who should choose Delphi Partners?
Delphi Partners should be chosen by buyers who want a cold email-focused agency and are comfortable doing more diligence themselves.
- Teams that specifically want an agency associated with Smartlead
- Buyers who only need cold email, not coordinated email plus LinkedIn
- Operators comfortable evaluating a provider without public pricing, reviews, or broad public documentation
If that describes you, Delphi Partners could be a shortlist candidate. I would just recommend asking direct questions about deliverability process, reporting cadence, and who actually runs campaigns.
Who should choose Outbound Pros?
Outbound Pros should be chosen by B2B teams that want managed outbound with more structure and more transparency.
We fit founders, sales leaders, and lean GTM teams that need a partner to own infrastructure, sourcing, sequencing, deliverability, and response handling across email and LinkedIn. We are especially strong when inbox placement risk is a real concern, when internal teams want one unified inbox, and when leadership wants to see reporting beyond raw send counts.
We also fit buyers who prefer senior operators and a founder-led model over a heavy account layer. If you're trying to build a repeatable outbound engine instead of just launching cold email sends, managed outbound is the lane we built for.
If You're Comparing Options
Comparing options here really comes down to how much channel breadth, deliverability rigor, and transparency you want from your agency.
Delphi Partners has one real public trust signal: the Smartlead partner listing tied to Benjamin Mckinzey. For a buyer seeking a cold email specialist, that can be enough reason to start a conversation.
Outbound Pros is the stronger choice for our ideal buyer because we show the operating model more clearly: owned infrastructure, coordinated email plus LinkedIn, unified reply management, live reporting, and transparent pricing bands. We also publish practical thinking on execution, including cold email follow up sequences that convert.
If you want a partner that will build and run the full outbound system with deliverability at the center, start here: managed outbound.
Frequently Asked Questions
Is Outbound Pros a Delphi Partners alternative?
Outbound Pros is a Delphi Partners alternative for B2B teams evaluating outbound agencies, but the two appear to differ in scope. Delphi Partners is only publicly supported as a Smartlead-listed cold email agency, while Outbound Pros runs managed outbound across email and LinkedIn with a stronger published focus on deliverability infrastructure, reporting, and unified reply handling.
Is Delphi Partners only a cold email agency?
Delphi Partners appears to be a cold email agency based on the public data available. Their Smartlead partner listing is the only verified signal we have, and it points to cold email platform use. We do not have verified public evidence for broader channels or services beyond that.
Does Delphi Partners publish pricing or reviews?
Delphi Partners does not publish pricing or reviews in the data available here. There are no verified public reviews on Clutch or G2 that we can cite, and pricing is not publicly listed. That means buyers should ask for references, process detail, and commercial terms directly.
What makes Outbound Pros different from a cold email-only agency?
Outbound Pros differs from a cold email-only agency by combining email and LinkedIn in one coordinated sequence and centering the service on deliverability. We set up dedicated owned domains, document SPF/DKIM/DMARC, warm accounts for 4-6 weeks, target 85-95% inbox placement, and route replies into Primebox for unified management.
Who is the better fit for a lean B2B team?
The better fit for a lean B2B team depends on what that team needs managed. If the team only wants a cold email specialist and is comfortable with limited public information, Delphi Partners may be worth a look. If the team wants a more complete managed outbound system with clearer reporting, pricing context, and email plus LinkedIn execution, Outbound Pros is usually the better fit.