Industrial real estate · Los Angeles and Oklahoma City

10mark Holdings

Live

The buildings, leases and deals run on one model. Asset management, deal packets and the 10-K workbook are live.

The work

Three workflows run on one model of the portfolio.

The model links buildings, leases, tenants and counterparties, and all three workflows read the same records.

Every building, lease, tenant and ownership entity is a linked record. Expirations, escalations and options come from the leases themselves, not from a workbook per building.

Marzy does the mechanical read of a deal. It abstracts the offering memorandum, rent roll, leases and operating statements into one packet, so the team spends its hours on the judgment call.

Marzy builds the annual workbook from the live portfolio and traces each figure to the document it came from. Nobody rolls it forward by hand from last year’s file.

The real-estate build

The desk screens industrial deals against the buy box overnight.

It reads the broker emails and the county filings. Each deal that fits gets a draft model, and a person makes the call.

Look inside MarzyOS
The Marzy desk screening deals for a real estate firm: it reads 340 broker emails and 62 county filings, screens them against the buy box and files a model, an LOI draft and a rebuilt T-12.

Oklahoma City

In 2021 The Oklahoman called 10mark “a repeat investor who has spent millions and millions of dollars buying up industrial property here.”

The paper spells it Tenmark Holdings, the firm’s legal name. It also reported that the man leading the firm was one of the largest holders of industrial and aerospace property in Oklahoma.

Here are six purchases with a published price, about $100 million in all. The first is the one that story covered.

Sources: The Oklahoman, December 23, 2021 (opens a new tab); OK Energy Today, December 23, 2021 (opens a new tab); 10mark.com (opens a new tab).

Part of the front page of The Daily Oklahoman for January 26, 1898. Under the dateline, the headline “SAPULPA!” in tall capitals tops a stack of decks: “The Long Deferred Railroad Project Finally Reaches a Climax”, “Contract Signed, Sealed and Delivered”, “Work on the Road to Commence Not Later Than February 15th”, “The News Received With Joy” and “Oklahoma City’s Future Greatness Assured”. A column of small type on the railroad runs down the right.

The Daily Oklahoman, January 26, 1898, front page: “Sapulpa! The Long Deferred Railroad Project Finally Reaches a Climax.”

Image: Oklahoma Historical Society, via The Gateway to Oklahoma History (opens a new tab). No Copyright – United States (opens a new tab).

What it bought.

Baker Hughes Super Center

$43 million · 2021

Three industrial buildings totaling 388,760 square feet and a 92,000-square-foot office building, on 72 acres in north Oklahoma City. Baker Hughes leased part of it back. Consumer Cellular took the rest of the office building for a new call center.

Sources: Creek Price Edwards, December 21, 2021 (opens a new tab); OK Energy Today, December 23, 2021 (opens a new tab); The Oklahoman, March 9, 2022 (opens a new tab).

Three more in 2023

$11.6 million · 2023

The Oklahoman’s lists of local deals named Tenmark companies as the buyers. The largest was 159,084 square feet of industrial space on North Sewell for $8.8 million. The others were a 21,800-square-foot building on South Eastern Avenue for $1.5 million and 21,350 square feet on North Sewell for $1,345,000.

Sources: The Oklahoman, March 13, 2023 (opens a new tab); The Oklahoman, May 12, 2023 (opens a new tab).

76 S. Meridian Avenue

$13.1 million · 2025

A 154,000-square-foot industrial property on 9.92 acres in Oklahoma City. Smith & Nephew makes medical equipment there and stayed on as the tenant.

Sources: Creek Price Edwards, May 14, 2025 (opens a new tab); Oklahoma County Assessor (opens a new tab).

Hilti Complex, Tulsa

$32.2 million · 2025

A 10mark company bought Educational Development Corporation’s headquarters and distribution warehouse: three buildings with about 402,255 leasable square feet. EDC leased back its own space for ten years.

Sources: Educational Development Corporation, October 28, 2025 (opens a new tab); the lease, filed with the SEC (opens a new tab).

Who rents from it.

In the public record

Four tenants

The press and the public filings name four. Baker Hughes and Consumer Cellular are on North Santa Fe, Smith & Nephew is on South Meridian, and Educational Development Corporation is in Tulsa.

Sources: Creek Price Edwards, 2021 (opens a new tab); Creek Price Edwards, 2025 (opens a new tab); Oklahoma County Assessor (opens a new tab); Educational Development Corporation, 2025 (opens a new tab).

In the firm’s own words

More than 300 tenants

10mark says it manages more than $1 billion of real estate: more than 60 buildings, more than 7 million square feet and more than 300 tenants. It lists Boeing, Northrop Grumman, AT&T, Volvo, Cox Communications, Nortek, Baker Hughes, Consumer Cellular and Xerox among them.

Source: 10mark.com, figures as of the third quarter of 2026 (opens a new tab).

The places

10mark’s site names three cities: Los Angeles, Oklahoma City and Dallas. These photographs are Oklahoma City’s skyline and the industrial land around the Tulsa port.

Source: 10mark.com (opens a new tab).

Downtown Oklahoma City at twilight: Devon Tower, lit office towers and glowing rooftops.

Oklahoma City, 2012.

A high aerial of the Tulsa Port of Catoosa industrial park: rows of warehouses along the barge channel, farmland beyond.

Tulsa Port of Catoosa, 2008.

Where it stands.

Industrial real estate

Live

Asset management, deal packets and the 10-K workbook are live. Amoroso Companies’ work runs on the same real-estate model and is still in build.

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