What Tandemloc does

Tandemloc, Inc. is a privately held US manufacturer of below-the-hook lifting and rigging devices, ISO container handling equipment, and cargo securing solutions, founded in 1984 and headquartered in Havelock, North Carolina. The company operates an ISO 9001:2015 certified (DNV-GL) plant with in-house proof-testing capability up to 600,000 lbs via a patented Load Test System (Patent# 7703335B2) that documents every test on video. Its product portfolio spans container lift spreaders (Autoloc® and Electroloc® series), lift and spreader beams (fixed, adjustable, telescopic, combo, and pipe end-cap modular designs up to 100,000+ lbs capacity), concrete barrier grabs with the Autolatch™ mechanism, beam clamps, pallet/coil/roll/forklift lifters, and a full container mobilizing range including casters, towbars, hydraulic jacks, carts, leveling legs, twistlocks, and MIL-STD-209 compliant defense products.

Tandemloc sells through a direct e-commerce storefront with publicly listed pricing on select standard items, a toll-free phone sales line (1-800-258-7324), a dedicated export/international sales desk, and inside sales teams handling custom quotes and specification drawings. The Rapid Ready™ program ships custom proof-tested lifting devices within 5-7 workdays, with credit-card payment at order placement. Most non-standard and custom products are quote-based. Aftermarket revenue is generated through service, refurbishment, recertification, and paint processes. The customer base spans intermodal transport, construction, crane and rigging services, US Department of Defense and government contractors, and marine/port/shipyard operators. The company also holds an OSHA Sharp Award for workplace safety.

The business is independently owned with 51-100 employees, no external venture or private equity backing documented, and no acquisitions, divestitures, or leadership changes disclosed in the available material. Distribution is primarily domestic with an active export channel and a multi-platform social media presence (Facebook, LinkedIn, Instagram, YouTube) supporting brand visibility and customer engagement.

Name

Tandemloc

Legal name

Tandemloc, Inc.

Website

https://tandemloc.com

Company type

Private

Founded year

1984

Operating status

Operating

Headcount range

51–100 employees

Short description

Tandemloc is a US-based manufacturer of below-the-hook lifting and rigging devices, ISO container handling equipment, and cargo securing solutions, serving construction, intermodal transport, crane/rigging, military, and marine industries.

Ownership category

akta.pro rank

Product category

Industrial Lifting Equipment

NAICS

Material Handling Equipment Manufacturing (33392), Industrial Truck, Tractor, Trailer, and Stacker Machinery Manufacturing (333924)

SIC

Construction Machinery & Equip (3531), Misc Industrial & Commercial Machinery & Equipment (3590), Industrial Trucks, Tractors, Trailors & Stackers (3537)

akta.pro primary industry

Lifting Accessories & Rigging (Slings, Shackles, Hooks, Spreaders) (IMAHAJAI)

akta.pro secondary industry

Lifting Attachments & Material Handling Accessories (Fork Attachments, Slings, Rigging) (IMAHABAJ)

Keywords

• Container lifting equipment
• Below-the-hook lifting
• Spreader beams
• Lifting rigging devices
• Material handling equipment

Headquarters

HQ city

Havelock North

HQ country

New Zealand

HQ region

Oceania

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Personnel, Supply Chain, Technology or R&D, Infrastructure, Marketing or Sales

Revenue model

1. Hardware Product Sales: Sale of physical lifting and rigging equipment including container lifting spreaders, lift beams, spreader beams, beam clamps, concrete barrier grabs, coil hooks, pallet lifters, pipe lifting attachments, roll lifters, aluminum lifters, and forklift attachments. Products are sold with individual pricing and some items available for direct online purchase.
2. Custom Equipment Manufacturing: Bespoke lifting solutions built to customer specifications through the Rapid Ready program or longer lead-time custom projects. Customers provide specifications and receive custom-quoted pricing.
3. Service, Refurbishment & Recertification: Aftermarket services including product refurbishment, recertification, and maintenance. Also includes paint processes for equipment restoration.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels6 records

Core offering

Tandemloc designs, manufactures, and distributes below-the-hook lifting and rigging devices, ISO container handling equipment (Autoloc® spreader frames, Electroloc® load leveling spreaders, container slings, lift lugs), lift and spreader beams, concrete barrier grabs, beam clamps, coil/roll/pallet lifters, and cargo securing products such as MIL-STD-209 compliant twistlocks and Fastmounts. The company also delivers custom-engineered lifting solutions through its Rapid Ready™ fast-track program and operates a patented Load Test System (Patent# 7703335B2) capable of proof testing up to 600,000 lbs with video documentation.

Product overview

Tandemloc is a manufacturer of container handling and beam lifting equipment with over 40 years of experience. The product portfolio centers around ISO container lifting spreaders (including patented Autoloc® and Electroloc® series), comprehensive lift beam and spreader beam offerings (fixed, adjustable, telescopic, combo configurations), and cargo securing/mobilizing equipment. The company operates a Rapid Ready™ fast-track program enabling custom-specified beams shipped in 5-7 work days. Core products span container spreader frames, load leveling systems, various lift beam configurations, concrete barrier grabs, coil/roll/pallet lifters, beam clamps, and full container mobilizing solutions including casters, towbars, carts, and leveling legs. The company also offers MIL-STD-209 compliant military products and proof testing services with a proprietary patented load test system up to 300 tons.

Differentiator

Problem solved

Functional benefit

Products and services

• Autoloc® Container Spreader Frames Self-actuating and modular container lift spreader frames for efficient handling of ISO shipping containers, including fixed and modular N3100 series models with pin-together scalable design.
• Electroloc® Load Leveling Container Spreaders Electronic operation load leveling container spreaders that handle ISO containers with reduced manual operator interaction, including AX17A00 and AX17B00 models for 20' and 40' containers.
• Container Lifting Slings Certified shipping container lifting slings including bottom lift slings, load leveling slings, and low lift frames for containers of various sizes.
• Container Lifting Lugs Heavy-duty container lifting lugs and rotary lift lugs that connect lift slings to side apertures on ISO 668 container bottom corner fittings.
• Spreader Beams Fixed and adjustable spreader beams (also called crane spreader bars) that convert lifting loads into compressive force on the beam and tensile force on slings; AT14 series ranges from 2,000 to 100,000 lbs capacity.
• Lift Beams Various lift beam configurations including fixed pad eyes, sliding pad eyes, multi-pick pad eyes, hooks, and special/custom configurations for diverse lifting applications.
• Combo Lift and Spreader Beams Combination lift and spreader beams designed for multiple users with features not available elsewhere in the industry, built for demanding jobs with precision and accuracy.
• AS23B Series Concrete Barrier Grabs Concrete barrier lifting grabs with capacities of 8,250 lbs and 16,500 lbs, featuring the Tandemloc Autolatch™ mechanism for safe touchless operation and compatible with Jersey, California, Texas, and Type F barrier profiles.
• Rapid Ready™ Fixed Length Spreader Beams Custom fixed length spreader beams shipped within 5–7 work days with capacities up to 100,000 lbs and spreads up to 480 inches (40 feet), every beam proof tested to 125% of Working Load Limit.
• Rapid Ready™ Lift Beams Custom lift beams shipped within 5–7 work days with capacities up to 40,000 lbs, spreads from 12 to 240 inches, and up to 4 pairs of bottom lift points.
• Rapid Ready™ Top Rigging Wire rope and chain top rigging available within 5–7 work days, including master links, thimbles, shackles, and proof test certificates.
• Steel End Cap Spreader Beam Assemblies Proof-tested end caps and pipe sleeves for building custom spreader beam assemblies with capacities exceeding 3 million lbs, using simple pin-together assembly without bolts.
• Aluminum End Cap Spreader Beam Assembly Lightweight aluminum end caps with NPS Schedule 80 6061-T6 aluminum pipe for building lightweight spreader beam assemblies with a maximum capacity of 62,000 lbs WLL.
• Beam Clamps I-beam clamps for lifting heavy loads with versatile connection to I-, HP-, W-, M-, or S-shaped steel beams, proof-tested to 125% WLL per ASME B30.20 specifications.
• Pallet Lifters Pallet and skid lifters meeting ASME standards, including AN17A lightweight (2,000–6,000 lbs), AN17W wheeled, and AN18A standard with counterweight models.
• AC49000A Shipping Container Casters Rigid clamp connection container caster wheels for mobilizing ISO containers, available in urethane on iron, pneumatic, and nylatron HD materials with capacities from 2,500 to 18,000 lbs.
• Shipping Container Towbars Twistlock towbars including AB42000A capable of towing fully loaded 40-foot containers up to 67,200 lbs, with drop-down and reduced width models for various applications.
• Hydraulic Lift Casters

Quantifiable outcome

• Proof testing at 125% of Working Load Limit (WLL) on all products
• +3 more outcomes

Segments5 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature5 records

Scale indicators3 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Moduloc (Cargo Equipment Corp): Moduloc specializes in ISO container spreaders, lifting frames, and twistlocks — a direct head-to-head product overlap with Tandemloc's Autoloc®, Electroloc®, and Fastmounts lines. Both target intermodal terminals, ports, and military logistics customers with comparable mechanical container lift solutions.
• Crosby Group: Crosby is a leading manufacturer of rigging hardware, shackles, hooks, and lifting accessories, and through its Caldwell subsidiary competes directly in spreader beams and below-the-hook lifters. Overlapping product breadth, certification standards (ASME/OSHA), and customer segments (construction, marine, defense) make it Tandemloc's closest large-scale comparable.
• Bishop Lifting Products: Bishop Lifting manufactures and distributes slings, rigging hardware, and below-the-hook lifting devices to industrial and construction end markets. Similar direct-to-customer catalog model, comparable product mix in spreader beams and lifting attachments, and overlapping customer base in crane/rigging services.
• Mazzella Companies: Mazzella supplies overhead cranes, hoists, jib cranes, and below-the-hook lifting devices including custom spreader beams. Comparable custom manufacturing capability, similar industrial customer base, and overlapping product categories (lift beams, spreaders, coil lifters).
• Lift-All Company: Lift-All manufactures industrial slings, webbing, and below-the-hook lifting devices with a direct catalog/distribution model similar to Tandemloc. Overlapping customer segments in construction and general rigging, and comparable commitment to proof testing and OSHA compliance.
• Certex USA: Certex USA distributes and manufactures lifting and rigging products including slings, shackles, and lifting beams for industrial customers. Comparable sales-led distribution model and overlap with Tandemloc in standard below-the-hook devices and custom rigging solutions.
• American Crane & Equipment Corp: American Crane & Equipment manufactures overhead cranes, hoists, and below-the-hook lifting attachments for industrial, government, and defense customers. Direct overlap in custom spreader beams and lifting devices serving construction, marine, and military end markets.

Broad incumbents

• Columbus McKinnon Corporation: Columbus McKinnon is a publicly traded broad incumbent in hoists, cranes, rigging, and material handling, with brands like CM, Yale, and Coffing. It overlaps with Tandemloc on hoists, lifting beams, and chain/rigging accessories but serves a much wider portfolio and scale, positioning it as a major competitor in adjacent categories.
• Gunnebo Johnson (GS Handling): Gunnebo Johnson supplies hoists, crane components, and below-the-hook lifting products as part of a broader materials handling portfolio. Comparable in ASME-certified lifting products but operates at significantly larger scale and broader geographic reach than Tandemloc.

Emerging players

• Dica Outrigger Pads / Rigging Equipment Suppliers: Dica and similar specialty rigging equipment manufacturers serve adjacent use cases (outrigger pads, crane setup accessories) within the same construction and crane rental customer base. They represent adjacent emerging players whose offerings complement rather than fully replace Tandemloc's below-the-hook product lines.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights6 records

Customer concentration

• YouTubeyoutube.com/channel/UCompsebJUnunc6EO7qR9tvA
• Facebookfacebook.com/tandemloc
• LinkedInlinkedin.com/company/tandemloc-inc.
• Instagraminstagram.com/tandemlocinc
• Xx.com/tandemloc

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tandemloc