03 — Customers

Agencies that stopped chasing receipts on Fridays.

Halden & Co

We used to find the overspend on the client invoice. Now Kestrel pings me when a card hits 80%, and I fix it the same afternoon.

Priya Halden

Managing Partner

−23%

paid-media overspend

$4.1M

yearly card volume

Studio Marrow

Month-end went from four days to one. Our bookkeeper thought something was broken.

Tom Marrow

Founder

4 → 1

days to close

cards issued

Oyster Lane

Paid media is 70% of our spend. Locking cards to ad platforms killed the surprise charges.

Dana Okafor

Head of Finance

−41%

untagged spend

$1.2M

yearly volume

Finance leads at 1,400+ agencies close the month with Kestrel

Halden&CoStudio MarrowOYSTER LANE◐ Brightsidefathom/norra.

$2.1B

card spend managed in 2025

11 hrs

saved per finance lead each month

38%

fewer out-of-policy charges after 90 days

Based on a survey of 214 customer workspaces, July 2026.