All agencies · Outbound / Cold Email

memoryBlue review

CONDITIONAL

Long-running B2B-tech SDR outsourcer with decent Clutch outcomes, but SDR/phone-centric, premium-priced, and employee reviews (Glassdoor 3.5) hint at an aging model beaten by cheaper alternatives.

No published price we can link to. We do not estimate one — ask on the call, and see the pricing-transparency line in the scores below.

Score 3.1/5Confidence: mediumLast evaluated 2026-07-19Website

Verdict

Founded 2002, memoryBlue builds and runs outsourced SDR teams for B2B tech, with Clutch clients reporting good value and 10+ booked meetings a month. It is SDR/phone-centric rather than deliverability-first email, priced custom and premium, and better suited to mid-size tech with real deal sizes than an early-stage, low-ticket, email-only buyer. Glassdoor employee reviews (3.5/996) include claims the model is outdated and undercut by cheaper alternatives, worth weighing on delivery consistency.

What we verified

Each claim below was checked against a named source, last on 2026-07-19. Follow any of them and check for yourself — that is the point of publishing them.

What other platforms say

Clutch listed (23) · Glassdoor 3.5 (996 employees)

Established and competent for B2B tech, but SDR/phone-centric, premium, and possibly an aging model.

These are other platforms' numbers, not ours. We report them because they are part of the picture, and we do not average them into our score — our score comes from the published rubric above.

Red flags

How it scored

Booked-meeting proof

Adequate · verified

Clutch clients report 10+ meetings/month and strong communication (23 reviews).

Deliverability & infrastructure

Adequate · inferred

SDR-led; email is part of a multi-touch motion, not the specialty.

List sourcing & ICP data

Adequate · inferred

Standard research/data operation for B2B tech.

Copy, offer & personalization

Adequate · inferred

SDR-driven messaging.

Qualification, booking & handoff

Adequate · inferred

Appointment setting and qualification for tech buyers.

Who does the work (staffing)

Adequate · verified

Trains and runs SDR teams; Glassdoor SDR rating 3.4 suggests churn/experience variance.

Pricing, contract & ownership

Adequate · inferred

Custom premium pricing; harder to justify for early-stage or low-ticket.

Compliance & domain-risk

Adequate · inferred

Standard compliance posture.

What we could not verify

Sources

Visit their website

This agency has not published a paid trial. What a paid trial is.

Others we evaluated in Outbound / Cold Email

Same rubric, same evaluator, same date range — so these are directly comparable to the verdict above.

See all 90 Outbound / Cold Email agencies we evaluated →

Koolav is paid by neither the agencies it evaluates nor by placement. If you believe an evaluation is wrong, we will re-review it and publish the result either way.