WillScot alternatives in the Mountain West

WillScot lists six yards across four of the five covered states: three in Colorado, one in Utah, one in Wyoming and one in Idaho. Its site routes rental pricing to a quote, and its listed products include storage containers, office trailers, container offices and modular buildings. Mobile Mini and ModSpace now sit under the WillScot name (willscot.com, locations pages, checked September 11, 2026).

This page starts with the information a field buyer can verify before calling, then separates product fit from directory score. JOLT leads the alternatives because it publishes every rental charge. That does not make it the answer for every layout. Use the broader table to identify the operator whose listed units, yard reach and timing statement match the work.

WillScot — what its own site states

Website

willscot.com

Yards in the five states

Commerce City, Henderson and Colorado Springs, CO; Salt Lake City, UT; Casper, WY; Nampa, ID

Units offered

Storage containers, office trailers, container offices and modular buildings

Rental rates

Quote request only

Minimum term

Confirm in the written quote

Delivery

Confirm in the written quote

Ownership

Merged with Mobile Mini in 2020 and combined its brands under the WillScot name in 2024; acquired ModSpace in 2018.

Also quoted as

Mobile Mini, ModSpace

Directory rank

8 of 16 — score 6 of 12

Checked

Sep 11, 2026

The branch WillScot calls Denver storage is in Commerce City, its Denver modular branch is in Henderson and its Boise branch is in Nampa.

Sources — Denver storage location page (Commerce City address); Denver modular location page (Henderson address); Colorado Springs location page; Salt Lake City location page; Casper location page; Boise location page (Nampa address); investor release on combining the Mobile Mini brand under WillScot; investor filing recording the ModSpace acquisition (checked Sep 11, 2026). Anything the site does not state is marked "Confirm in the written quote".

Who are the alternatives?

The baseline row shows WillScot first. Rows after it follow the full directory's rank, which uses rate visibility, stated terms, stated delivery information, yard states and mobile-office availability. It is arithmetic on stated facts, not a recommendation based on reviews.

Alternatives to WillScot in Colorado, Utah, Wyoming, Montana and Idaho

Operator	Yards	Units	Rates	Minimum term	Delivery
WillScotBaseline	YardsCO ×3, UT, WY, ID	UnitsStorage containers, office trailers, container offices and modular buildings	RatesQuote request only	Minimum termConfirm in the written quote	DeliveryConfirm in the written quote
JOLT	YardsCO	Units20 ft office containers in three tiers, a 40 ft office with bathroom, 10 to 40 ft storage containers, temporary fence, light towers and ground heaters	RatesEvery rate published	Minimum term1 month on 10 to 20 ft storage, 3 months on an office or 40 ft storage; 12 months in Mountain West (WY, ID, UT, MT)	Delivery2–4 weeks standard window; express within 7 business days on the 20 ft office container — Base; delivery fee published for every zone, Zone F pickup quoted in writing
Dry Box	YardsCO, UT	UnitsStorage containers and container offices	RatesStarting rates on its site	Minimum termConfirm in the written quote	DeliveryNext-day delivery is often available around Salt Lake City
Mobile Modular Portable Storage	YardsCO, UT, ID	UnitsStorage, office, office-and-storage combo and refrigerated containers	RatesQuote request only	Minimum termRentals run on 30-day renewable periods	DeliveryDelivers within days rather than weeks
MoCan Containers	YardsMT ×2	Units20 ft and 40 ft storage containers	RatesStarting rates on its site	Minimum termFrom a single month to long-term arrangements	DeliveryDelivery and pickup offered, including long distances
Herc Rentals	YardsCO, UT	Units10, 16, 20 and 40 ft storage containers and a 40 ft container office with a storage bay	RatesAfter ZIP code and dates	Minimum termConfirm in the written quote	DeliveryLive delivery tracking and alerts through its ProControl tools
Mobile Modular	YardsCO ×2, UT, ID	UnitsMobile office trailers and modular office buildings	RatesQuote request only	Minimum termConfirm in the written quote	DeliveryStandard modular buildings deliver in weeks from order
United Rentals	YardsCO, UT, ID	UnitsStorage containers, office containers, office trailers and modular buildings	RatesQuote request only	Minimum termConfirm in the written quote	DeliveryAdvises scheduling delivery well in advance to get the container size you need
Sunbelt Rentals	YardsCO, UT, ID	Units20 ft and 40 ft storage containers	RatesAfter ZIP code and dates	Minimum termConfirm in the written quote	DeliveryDelivery and pickup offered from the branch
Warehouse on Wheels	YardsCO ×2	UnitsStorage trailers, ground-level storage containers and 20 ft and 40 ft office-and-storage combo containers	RatesQuote request only	Minimum term30-day rentals	DeliveryOn site within 24 to 48 hours
Pacific Mobile Structures	YardsID	UnitsStorage containers and mobile office trailers	RatesQuote request only	Minimum termNo minimum lease term	DeliveryIn-stock standard buildings typically deliver within one to two business days
Satellite Shelters	YardsCO	UnitsMobile offices, modular buildings, ground-level offices and storage containers	RatesQuote request only	Minimum termAsks for a minimum of 30 days where possible	DeliveryAsks you to check with the local representative for a delivery quote
Cascade Container	YardsUT	UnitsDry, refrigerated and office containers	RatesQuote request only	Minimum termOne-month minimum, then month to month	DeliveryConfirm in the written quote
Storm's Specialty Services	YardsCO	UnitsStorage containers and mobile office trailers	RatesQuote request only	Minimum termConfirm in the written quote	DeliveryQuoted cost includes delivery and placement
Haulaway Storage Containers	YardsCO	Units10, 20, 26 and 40 ft storage containers	RatesQuote request only	Minimum termShort- or long-term rentals; no fixed minimum is named	DeliveryUsually delivers within one business day
Montana Mobile Storage	YardsMT	Units10, 20 and 40 ft storage containers and 20 ft office containers	RatesQuote request only	Minimum termConfirm in the written quote	DeliveryConfirm in the written quote

Rows after the baseline run in directory rank order. Yards are counted per state (CO, UT, WY, MT, ID); "Confirm in the written quote" means the operator's site states nothing we could verify, not that no term exists. Full method and every row: the Mountain West operator directory.

• WillScot: The branch WillScot calls Denver storage is in Commerce City, its Denver modular branch is in Henderson and its Boise branch is in Nampa.
• Mobile Modular Portable Storage: The Colorado page names Longmont as the branch; its other Colorado city pages are service pages.
• MoCan Containers: The Bozeman location page places that yard in Gallatin Gateway.
• Mobile Modular: The Colorado pages name Denver and Colorado Springs as locations without a street address; the Utah and Idaho pages give one.
• United Rentals: These are its Storage Containers and Mobile Offices branches; its general equipment branches are more numerous.
• Sunbelt Rentals: General equipment branches; the storage containers sit in the same catalog as the tools.
• Sunbelt Rentals: No mobile-office rental product appeared on its site when we checked.
• Warehouse on Wheels: Trades in Colorado as Colorado Trailer Rentals, with drop lots in Denver and Colorado Springs.
• Satellite Shelters: Its Denver branch address is in Commerce City; the branch page says it also serves Wyoming.
• Cascade Container: Purchase prices are printed on the site; rentals go through a quote form.
• Montana Mobile Storage: The Missoula address appears in the company's own brochure; the site's pages give no street address.

Sources for the alternatives

Each operator's facts come from its own website, read on the date shown. Rates, terms and delivery promises change; the written quote governs.

• Dry Box — locations page (yard addresses); rent a container page (starting rates); Salt Lake City page (unit types; next-day delivery) (checked Sep 11, 2026)
• Mobile Modular Portable Storage — Colorado location page (Longmont branch); Utah location page; Boise location page; products page (unit types; delivery within days); contract terms page (30-day renewable periods); quote request page (checked Sep 11, 2026)
• MoCan Containers — locations page (Billings and Bozeman yards); rentals page (sizes; minimum term; delivery); Bozeman page (starting rental rates) (checked Sep 11, 2026)
• Herc Rentals — Denver branch page; Salt Lake City branch page (West Haven address); storage containers category (sizes; pricing after ZIP and duration) (checked Sep 11, 2026)
• Mobile Modular — Colorado location page (Denver and Colorado Springs); Utah location page (North Salt Lake address); Idaho location page (Boise address; unit types); modular office buildings page (quote; delivery in weeks); company history page (McGrath RentCorp); Design Space Modular page (checked Sep 11, 2026)
• United Rentals — Henderson storage and mobile office branch page; Murray storage and mobile office branch page; Boise storage and mobile office branch page; storage containers and mobile offices solution page; 20 ft storage container product page (quote and account pricing); acquisition history page (General Finance and Pac-Van) (checked Sep 11, 2026)
• Sunbelt Rentals — Denver branch page; South Salt Lake branch page; Boise branch page; 40 ft storage container product page (rates after rental details) (checked Sep 11, 2026)
• Warehouse on Wheels — Colorado Trailer Rentals brand page (lots; unit types; terms; delivery) (checked Sep 11, 2026)
• Pacific Mobile Structures — locations page (Boise branch address); FAQ page (unit types; no minimum term; delivery); quote request page (checked Sep 11, 2026)
• Satellite Shelters — Denver branch page (Commerce City address; unit types); FAQ page (minimum term; delivery); quote request page (checked Sep 11, 2026)
• Cascade Container — Ogden page (operates from its Salt Lake City depot); container rentals page (minimum term; quote); container offices collection (checked Sep 11, 2026)
• Storm's Specialty Services — contact page (Grand Junction address); about page (unit types; delivery in the quote); FAQ page (quoted prices include delivery) (checked Sep 11, 2026)
• Haulaway Storage Containers — Colorado page (Castle Rock); about storage containers page (sizes; terms; quote); facts page (one business day delivery); about page (CR&R) (checked Sep 11, 2026)
• Montana Mobile Storage — rental page (unit types); company brochure (Missoula address); contact page (form only) (checked Sep 11, 2026)

A high row tells you that more facts are available before contact. It does not promise inventory, a lower final amount or a closer dispatch point. Before choosing, ask the likely operators for the same delivery week, unit configuration and rental duration so their written responses describe the same job.

When is JOLT the right alternative?

JOLT fits when you need a ground-level container office rather than a trailer or a modular complex, and when published charges matter to the estimate. The three 20 ft tiers start with Base at $795/mo, move to Grid-Free, and reach Alpine at $1,895/mo. All use one-trip ISO shells.

Base has shore power, mini-split heating and cooling, a steel door, two barred slider windows, lights, outlets and vinyl-plank flooring. Grid-Free adds the built-in WATCH camera, CONNECT Starlink and POWER solar with a battery configured to operate the HVAC. Alpine adds a standing-seam over-roof, covered entry deck, cedar surrounds and backup heat.

For a longer room and an enclosed bathroom, JOLT rents a 40 ft office at $1,595/mo. For smaller footprints, compare the 20 ft office tiers. The published rent lets you choose the physical setup first and then add delivery, recurring charges and any optional work without waiting for a sales response.

JOLT dispatches from its single Gypsum yard on its own truck. The standard window is 2–4 weeks from a confirmed reservation. JOLT Express puts an eligible Base 20 ft office on site within 7 business days for $750. The reservation flow shows the delivery week before payment.

JOLT is not the direct substitute when the plan specifies a wide-body office trailer, a multi-unit modular complex or a local yard outside Colorado. It also cannot promise that a requested unit is available until the reservation is confirmed. In those cases, use the operator list to match the format and dispatch geography before comparing commercial terms.

For a narrower two-company view, read JOLT versus WillScot. That page addresses the two companies directly; this page keeps the wider alternative field visible.

When is another operator the better fit?

Dry Box is a practical candidate when you want storage containers or container offices from Denver or Salt Lake City and want starting rental rates visible before contact. Its site says next-day delivery is often available around Salt Lake City (dryboxusa.com, Salt Lake City page, checked September 11, 2026). Confirm your exact configuration, term and transportation in its written quote.

Mobile Modular fits a requirement centered on mobile office trailers or modular office buildings rather than a single container office. It lists Denver, Colorado Springs, North Salt Lake and Boise locations and says standard modular buildings deliver in weeks from order (mobilemodular.com, modular office buildings page, checked September 11, 2026).

United Rentals can make sense for a crew that already keeps equipment on a United account and wants storage or office space from the same company. Its specialty branches are in Henderson, Murray and Boise, and the site advises arranging delivery well ahead for the needed container size (unitedrentals.com, storage containers and mobile offices solution page, checked September 11, 2026).

Herc Rentals is another account-consolidation choice. It lists 10, 16, 20 and 40 ft storage containers plus a 40 ft container office with a storage bay, with Denver and West Haven yards. Its ProControl tools provide live delivery tracking and alerts (hercrentals.com, storage containers category, checked September 11, 2026).

Satellite Shelters fits when the requested format is a mobile office, modular building, ground-level office or storage container along the Front Range and into Wyoming. Its listed branch is in Commerce City, and its site asks customers to check with the local representative for a delivery quote (satelliteco.com, FAQ page, checked September 11, 2026).

Pacific Mobile Structures is a Boise-area option for storage containers and mobile office trailers. It states no minimum lease term and says in-stock standard buildings typically deliver within one to two business days (pacificmobile.com, FAQ page, checked September 11, 2026). Confirm that the specific building is in stock.

Mobile Modular Portable Storage is a container-focused choice from Longmont, Salt Lake City or Boise. It lists storage, office, office-and-storage combo and refrigerated containers, says rentals use 30-day renewable periods and says delivery occurs within days rather than weeks (mobilemodularcontainers.com, contract terms page, checked September 11, 2026).

How do you move a WillScot quote to a written comparison?

Start with physical equivalence. Record exterior size, usable office area, bathroom, storage bay, stairs, skirting, power requirements, HVAC, data service, furniture and security. A container office and an office trailer can both serve as a field office while creating different access, setup and utility requirements.

Next, normalize time. Ask when rent starts, the minimum period, whether it rolls month to month, how much pickup notice is required and when rent stops. Get the annual increase and early-termination rule in writing. JOLT's minimum and annual rule appear in Rental Agreement section 3.

Finally, request delivery and pickup as separate lines, along with deposits, damage waiver or insurance choices, environmental charges, taxes and optional work. JOLT prints these fields on pricing, and how it works explains reservation through retrieval. Apply the same checklist to every bid rather than comparing a monthly line against an all-in estimate.

Ask each operator to confirm the delivery window, not simply an ideal date. Also disclose access limits before dispatch: surface, slope, drainage, gate width, turns, overhead hazards and straight-line clearance. A quote for the right unit can still fail operationally if the truck cannot place it.

What does a JOLT reservation look like?

At reserve, you select the unit, enter the job ZIP and see the available delivery week before payment. An office reservation uses a $750 deposit, which is credited to the first invoice rather than added as a separate month of rent.

Cancellation is free when JOLT receives written notice more than 14 days before the first day of the delivery window. The deposit is forfeited inside 14 days. After confirmation, standard delivery is scheduled within the shown window, subject to the site being ready and accessible.

Before reserving, verify the pad and truck route. The customer supplies a firm, level and well-drained pad, with about 70 ft of straight-line clearance for a 20 ft unit and about 100 ft for a 40 ft unit. Resolve access questions before the truck leaves Gypsum.