ABRENSYSTEMS

Abren Systems LLCNew MexicoFormed 2026

Abren Systems builds focused software for specialized work.

We work where general-purpose tools stop being enough — workflows where accuracy, traceability, and domain understanding matter.

PRODUCTTieBookReview-ready LM-2 workpapers from general-ledger data. The software prepares; the accountant reviews and decides.Explore TieBook

Workpapers a reviewer can trust, because every number shows where it came from.

TieBook takes a union's general-ledger data and prepares the workpapers for the revised Form LM-2 — mapped, reconciled, and ready for the accountant's review.

TRACEABILITY
Each output figure carries its path back to the ledger lines it came from.
RECONCILIATION
Totals are reconciled against the ledger; differences are surfaced, not absorbed.
MAPPING LOGIC
The rule that maps a ledger account to an LM-2 line is shown beside the result.
OUTPUTS
Workpapers are produced as documents a reviewer can file, annotate, and hand to the next person.
TieBook workpaper: Schedule 22 payee disbursements with traced entry counts, line totals, and the tie to Statement B item 56. Synthetic demonstration data.
TieBook workpaper — traceability view. Synthetic demonstration data.

TieBook is the first product built and maintained by Abren Systems.gettiebook.com

What every Abren product must be.

ABREN STANDARD — EVIDENCE BEFORE ASSERTION

  1. 01

    TRACEABLE

    Outputs lead back to their source.

  2. 02

    REVIEWABLE

    Software prepares the work. A person makes the decision.

  3. 03

    VERIFIED

    Draft and verified states are different things.

  4. 04

    MAINTAINED

    What ships is maintained as the workflow changes.

Your ledger stays yours.

Financial records are the most sensitive thing a firm handles. Here is how we treat them, so you can hold us to it.

HOW IT WORKS
TieBook takes a ledger export in and returns finished workpapers. There is no platform to sign into and no server that keeps your books.
WHAT WE HOLD
Outside a signed engagement, nothing. Abren runs no customer accounts and stores no client records.
BEFORE ANY DATA MOVES
A written data-handling agreement comes first — what we receive, who handles it, and how it is returned or deleted. No agreement, no data.
IF SOMETHING IS WRONG
Write to security@abrensystems.com. It reaches the person who built the product.

Current as of September 2026. Updated when the facts change.

Small by design

Abren is deliberately small. The person who designs a product also builds it, maintains it, and answers for it — so when you have a question, you reach the person who can act on it.

FOUNDER
Ephrem Demelash Demise · ephrem@abrensystems.com
ENTITY
Abren Systems LLC · New Mexico, formed 2026
MAILING ADDRESS
Show address
1209 Mountain Road Pl NE, Ste N
Albuquerque, NM 87110