Instantly agencies
6 agencies in the index build on Instantly. Ranked by the evidence on record, the first three are Groflo (Miami, US, from $6,000 a month), OneGTM (US, from $5,000 a month) and IntentSignal (US). Instantly is a cold email platform with unlimited inbox connections, built-in warm-up and a lead database. Instantly suits high-volume programs; ask how the agency handles warm-up, inbox rotation and bounce rates before volume goes out. The plan price does not rise with each inbox, so agencies use it to spread one client's volume across many domains. 2 of the 6 publish a monthly minimum, from $5,000 to $6,000, with a median of $5,500. None of them advertise pay-per-meeting or pay-per-lead pricing. The services most often offered here are cold email, GTM engineering and intent data. 2 have a Clutch or G2 rating on file with the date it was read. Ask whether the workspace and its data stay with you when the engagement ends.
| # | Agency | HQ | Stack | From (monthly) | Model | Proof | Badges |
|---|---|---|---|---|---|---|---|
| 1 | Groflo↗ Forward-deployed SDRs on top of Clay engine; quarterly terms | Miami, US | Clay, Instantly, Smartlead | $6,000 | Retainer | n/a | Clay NativeSDR Pod |
| 2 | OneGTM↗ Done-with-you GTM engineering + advisory | US | Clay, Instantly | $5,000 | Retainer | n/a | Clay Native |
| 3 | IntentSignal↗ Retainer or hybrid retainer+performance; small client roster | US | Instantly, HubSpot, Custom | Ask | Retainer | Clutch5.0 (3) | Verified Deliverability |
| 4 | ColdIQ↗ Clay Elite Studio; remote Europe-based delivery; now also sells a GTM data API | Not published | Clay, Smartlead, Instantly, lemlist, Apollo | Ask | Not published | G22.5 (6) | Clay NativeEditor's Pick |
| 5 | Growth Engine X↗ High-volume cold email; free test campaign; 3-month minimum | New York, US | Clay, Smartlead, Instantly | Ask | Retainer | n/a | Clay NativeVerified Deliverability |
| 6 | Understory↗ Clay Enterprise Partner; allbound model mixing paid media and outbound | Miami, US | Clay, HubSpot, Instantly | Ask | Not published | n/a | Clay Native |
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Related pages
Parent: All agencies
Questions
- How much does an Instantly agency cost?
- 2 of the 6 publish a monthly minimum, from $5,000 to $6,000, with a median of $5,500. Setup fees and minimum terms vary, so ask for both before comparing monthly prices.
- Retainer or pay-per-meeting?
- A retainer buys an agreed scope each month and suits a defined ICP with at least three months of runway. Pay-per-meeting moves the risk to the agency and suits offers with a short sales cycle. On this page, 0 agencies offer pay-per-meeting pricing and 0 pay-per-lead.
- How long until results?
- New sending domains need two to three weeks of warm-up before volume goes out, and list building runs alongside it. Most agencies quote first meetings in weeks four to eight.
- Does the stack matter?
- 5 of the 6 build on Clay and 2 work inside HubSpot. Ask who owns the sending domains, the data and the workflows when the engagement ends; some agencies hand them over and some keep them.