RevSystem.

Revenue integrity for law firms

The work happened. The revenue didn’t.

RevSystem reads the work your firm already does in Microsoft 365, finds the billable time that never reached an invoice, and defends every borderline entry with your client’s own billing guidelines. An attorney approves every line. Always.

Request a pilot See how it works

Now piloting with a limited number of defense firms.

Matter 2214-081 · Hartline v. Meridian Oct 2026
10/03Deposition prep — R. Vance2.6$1,170
10/03Email — coverage counsel (×14)0.9$405 Never recordedRecovered
10/07Draft MSJ §III revisions4.2$1,890
10/08Block-billed entry, split per OCG1.8$810 Write-down riskDefended · cites §4.2.1
10/09Call — expert scheduling0.3$135 Never recordedRecovered
Kept on this invoice +$0

The leak

Earned revenue goes missing in three places.

Never recorded

The calls, emails, and quick turnarounds that happen between time entries. Most timekeepers reconstruct their day from memory — six minutes here, twelve there, on every matter, every day.

0.9h — email, coverage counsel ··· $405 $0

Written down

Entries that would violate a client’s outside counsel guidelines get cut before the bill goes out — block billing, staffing rules, task caps. Often silently, by habit.

4.5h block-billed ··· $2,025 $1,240

Rejected

E-billing systems bounce entries that break the rules the firm agreed to. The appeal is manual, slow, and usually not worth the fight — so nobody fights it.

INV 4471 ··· RETURNED · rule L210

The process

Recovery, in tenths of an hour.

0.1

Connect Microsoft 365

Your IT grants consent once. RevSystem syncs metadata only — senders, timestamps, matters. Never message bodies. Never attachments.

0.2

Every activity, classified

Each item is marked billable, internal, or borderline. Borderline items get a defense case: a proposed narrative, the evidence behind it, and the exact guideline section it satisfies.

0.3

Attorneys approve

Nothing becomes a billable entry without attorney sign-off. Review the queue in minutes — approve, edit, or dismiss — and approved entries flow to your bill.

Guidelines

Your client’s rules, enforced before the invoice leaves.

Upload each client’s outside counsel guidelines — the PDF they sent you, as-is. RevSystem extracts the billing rules, your billing admin approves them, and from then on every flagged entry cites the exact section it complies with. When guidelines change, you see the diff.

§4.2 No block billing §7.1 Rate caps by role §3.3 Intra-office conferences
Defense caseEntry 10/08
Narrative
Revise MSJ §III per co-counsel comments (1.8h)
Cites
OCG §4.2.1 — discrete tasks itemized separately
Evidence
3 documents · 2 email threads
Confidence
High

Security

Built for privileged data.

Metadata only

Message bodies and attachments never leave your tenant. RevSystem works from senders, timestamps, and matter associations.

Attorney in the loop

AI proposes; a lawyer disposes. Every billable line is human-approved before it exists — there is no other path.

US-hosted, encrypted

Single-tenant infrastructure in the United States. Encrypted in transit and at rest.

Invite-only access

Sign-in is bound to your firm’s Microsoft identity. No separate passwords to manage — or leak.

The pilot

Run one billing cycle through it.

We’re onboarding a limited pilot cohort of defense firms. Connect one practice group, run one billing cycle, and see what your current process leaves behind.

Request a pilot

or write to nathan@svec.us