SDR B2B lead generation compared: Delta-v vs Belkins

Explore the options for B2B lead generation with outsourced SDR teams. We compare two top SDR outsourcing companies, Delta-v and Belkins, on key factors including regions covered, localisation, industry expertise, team model, onboarding speed, performance results, reporting, scalability, pricing, training, quality control, and tech stack.

Regions covered & localisation

Delta-v regions covered & localisation

Delta-v covers the United Kingdom, Ireland, Nordics, DACH, Benelux, the Middle East, and South Africa.

Belkins regions covered & localisation

Belkins has a global presence with five offices worldwide and works with clients across North America and Europe.

Key takeaway

Delta-v has a clear regional focus on the UK, Ireland, Nordics, DACH, Benelux, the Middle East, and South Africa. Belkins offers broad coverage across North America and Europe with less specialisation in EMEA.

Industry expertise

Delta-v industry expertise

Delta-v has deep domain knowledge in Enterprise Software and FinTech sales in the EMEA region, with a focus on turning complex B2B offerings into qualified meetings and sales pipeline.

Belkins industry expertise

Belkins offers broad industry coverage, spanning over 50 industries, including software, IT services, marketing, and manufacturing, with a strong focus on SaaS and Tech positioning.

Key takeaway

Choose Delta-v if you need specialist help selling Enterprise Software and FinTech products in EMEA and value deep domain knowledge. Choose Belkins if you want a broad, cross-industry approach to scale outreach across varied markets.

Talent model

Delta-v talent model

Delta-v utilises SDR teams that embed into your organisation and focus exclusively on your success. SDRs are supported by a Dedicated SDR Manager, Account Manager, Campaign Strategist, and Sales Operations Analyst. Delta-v only hires A-team talent and has its own academy to ensure consistency in training and output from its outsourced SDRs.

Belkins talent model

Belkins uses global delivery with SDR talent based in Ukraine, with its SDRs operating offshore and targeting North America and Europe.

Key takeaway

Choose Delta-v for an embedded, dedicated team with layered management and enablement around SDRs. Choose Belkins for offshore SDR capacity serving global markets.

Onboarding speed

Delta-v onboarding speed

Delta-v commits to a 30-day launch, including a fully functional, dedicated SDR team that will be live within a month.

Belkins onboarding speed

Belkins emphasises rapid ramp-up, but does not publish a fixed onboarding timeline. Case studies and client feedback indicate meetings booked in the first month.

Key takeaway

Choose Delta-v if you want a predictable 30-day timeline, with full playbook development. Choose Belkins if you prioritise speed to first meetings, email over a multi-channel approach, and can operate without a published, standardised onboarding timeline.

Performance results

Delta-v performance results

Delta-v demonstrates impact measured in pipeline value and senior stakeholder access. One programme generated more than $5M in unweighted pipeline value within six months.

While another client saw the initial three-month ramp reach 250% of benchmark targets, including a month in which a single SDR booked 23 meetings, other performance metrics include 95 qualified meetings booked in 6 months, surpassing the 90-meeting benchmark.

Belkins performance results

Belkins points to aggregate scale and fast early momentum. The company claims to have scheduled more than 200,000 appointments since 2017. Case studies describe 32 appointments in three months, with 17 in the first month. In a client review, they delivered 20 qualified meetings in six weeks.

Key takeaway

Delta-v emphasises sales pipeline outcomes for FinTech and Enterprise Software companies, with a focus on quality over quantity and targeting senior decision-makers. Belkins appears to have booked more meetings, but it’s also larger, so it’s not a 1:1 employee comparison.

Reporting & transparency

Delta-v reporting & transparency

Delta-v positions visibility as a core promise, offering full system access, weekly meetings, and granular reporting to provide you with complete visibility and control.

Case study evidence backs their claims of reporting success and transparency. One client’s testimonial emphasises the rapid transformation in sales and a boost to the sales pipeline.

Belkins reporting & transparency

Belkins describes its transparency, stating that “regardless of the package, each engagement includes transparent reports, appointment scheduling, and continuous data-driven fixes.”

Reporting is delivered through its Frostbite platform, which again focuses on email success rather than a multi-channel approach.

Key takeaway

Both vendors provide strong visibility with Delta-v offering superior reporting due to a superior prospect approach.

Scalability & flexibility

Delta-v scalability & flexibility

Delta-v offers a fully operational, dedicated SDR team in 30 days. For flexibility, Delta-v allows customers to scale capacity up or down as needs evolve.

Clients reference the flexibility to expand into new markets without the delay and overhead of building an in-house team.

Belkins scalability & flexibility

Belkins tailors team size, structure, and expertise to a business’s workflows, with custom SLAs and contract terms. Accounts can be scaled to multiple dedicated SDRs as demand rises. Clients note the team’s willingness to adjust scope as needs change.

Key takeaway

Similar approach across both Delta-v and Belkins in terms of scalability and flexibility.

Pricing model

Delta-v pricing model

Delta-v offers SDR-team-as-a-Service and SDR-team-as-a-Service for Enterprise customers.

SDR-team-as-a-Service pricing includes an onboarding & setup fee, a monthly retainer per SDR, plus a fee per Sales Accepted Lead. Both of Delta-v’s Enterprise SDR-team-as-a-Service and standard SDR-team-as-a-Service pricing are available on request.

Belkins pricing model

Belkins prices on a custom quote basis depending on scope, team size, and deliverables. Typical engagements range from US$5,500 to US$25,000.

Key takeaway

Delta-v has pricing for SDR-team-as-Service, with Enterprise options. While Belkins has a general price range, custom pricing applies depending on your needs.

Tech stack & integration

Delta-v tech stack & integration

Delta-v utilises LinkedIn Sales Navigator, B2B data providers, and a sales engagement platform. For each new customer, they set up a dedicated Salesloft instance.

Belkins tech stack & integration

Belkins uses a proprietary toolkit. Its tech stack includes Folderly for email deliverability, Frostbite for outreach and reporting, and Charge as an Outlook extension.

Key takeaway

Delta-v operates on familiar, enterprise-ready tools, featuring a client-dedicated Salesloft instance and RevOps-managed integrations. Belkins leans on a proprietary platform suite (Folderly, Frostbite, Charge) that comes packaged with the service.

Training & quality control

Delta-v training & quality control

Delta-v runs a formal sales training program, Go-to-Market Academy, with clear progression. Quality is reinforced by close trainer support, ongoing coaching from sales leaders, a continuous learning environment, weekly reporting and monthly campaign strategy sessions. With leadership readiness within 12-24 months.

Belkins training & quality control

Belkins equips SDRs with internal coaching and QA support layered on top of its proprietary tools. QA teams monitor activity quality using a data-driven, consistent approach.

Key takeaway

Choose Delta-v if you want a deeply structured talent pathway with a formal academy, leadership development, and process-driven coaching embedded in weekly and monthly operating cadences. Choose Belkins if you prefer a tooling-led quality system with centralised QA and coaching.

Conclusion

Both vendors can grow your B2B sales pipeline, but they suit different businesses. Delta-v is a good fit if you want a partner that works closely within your business, has extensive knowledge of Enterprise Software and FinTech, sets a high standard for lead quality, and keeps you informed on a weekly basis.

Belkins suits teams that need flexible capacity across North America and Europe, quick momentum to booked meetings, and simple, dashboard-style updates.

Speak to a Delta-v specialist for SDR outsourcing that meets your needs today.