The twelve ecommerce consulting companies below sell four different engagement models at four different prices. Picking the wrong model costs more than picking the wrong firm inside the right one.
An ecommerce consulting company is an outside advisor you hire to diagnose why an online business isn’t growing and to set the direction that fixes it. The execution usually stays with your team or your agency; the judgment is what you’re buying. That’s the same product at every price point on this list.
Published rates for this work run from $25 to $300 an hour, according to BigCommerce. A twelvefold spread means the words “ecommerce consulting” cover several different businesses. The useful question is which one you’re shopping for.
This list isn’t sponsored and no firm paid to appear on it.
The twelve firms and the situation each one fits
Every entry below answers the same six questions in the same order, 2 Visions included. Where a firm doesn’t publish its deal sizes or engagement lengths, the entry says so instead of guessing. There is no single set of best ecommerce consulting firms, because the right firm for a $30M DTC brand is the wrong one for a global retailer.
- 2 Visions: principal-led advisory for $5M to $500M DTC brands
- Boston Consulting Group: enterprise ecommerce strategy and build programs
- Strategy&: consumer and retail strategy inside PwC
- McKinsey Digital: technology-led programs at enterprise scale
- Bain & Company: digital and analytics strategy, heavy in private equity
- OC&C: consumer goods and D2C channel strategy
- Accenture: commerce strategy plus large-scale implementation
- KPMG: connected commerce operating models
- Simon-Kucher: pricing, promotion and revenue architecture
- Alvarez & Marsal: retail performance improvement and turnarounds
- Kearney: retail operations, supply chain and omnichannel
- Deloitte Digital: B2B and B2C commerce platform programs
These twelve don’t compete inside one market. Strategy consulting passed $60 billion globally for the first time in 2025 inside a $275 billion consulting market, with technology and innovation work at $69.2 billion and operations at $36 billion, according to Source Global Research. A brand shopping this list is usually shopping two or three of those markets at once without realizing it, which is why proposals come back so far apart.
For a view of the individual practitioners behind this work, we keep a separate list of ecommerce experts.
01. 2 Visions
2 Visions is a boutique ecommerce strategy consultancy in Charleston, South Carolina, founded in 2017 and built around one senior practitioner working weekly with a CEO or CMO.
- Engagement model: Principal-led advisory. Weekly 1-on-1 working sessions alternate between setting direction, fixing what’s broken and pressure-testing decisions before they get expensive. The firm doesn’t run media buying as an agency would; it builds the client’s team to execute or directs the client’s existing agency.
- Fits: DTC and B2C brands doing $5M to $500M+ in annual revenue through their own .com channel, where the CEO or CMO wants to work directly with an ecommerce consultant instead of managing another vendor relationship. One $60M-a-year omnichannel brand tripled ecommerce revenue and lifted average order value 150% across an engagement.
- Deal size and length: Three-month minimum, then month-to-month with no long-term lock-in. Pricing scales with the client’s financials instead of billing hourly. Fee levels aren’t published.
- Who does the work: Yates Jarvis, the founder, personally leads every engagement, with subcontractors disclosed when specialized execution is needed.
- Where they work: Charleston, SC, serving US DTC, omnichannel and retail brands.
- Poor fit for: A company that wants execution hours delivered by a staffed team or an enterprise that needs a dozen workstreams running in parallel across regions.
A published client review reads, “2 Visions brings a holistic, comprehensive approach that is more business strategy-centric.” Clients own every strategy, process and improvement built during an engagement.
02. Boston Consulting Group
BCG’s ecommerce practice sells end-to-end programs that span strategy formulation through the build itself, drawing on specialist units for analytics, technology and venture creation.
- Engagement model: Staffed enterprise program, hybrid strategy and digital, covering ecommerce pricing, digital product strategy, operating model design and e-sales performance.
- Fits: Large retailers and consumer companies launching or rebuilding a commerce platform where the operating model has to change alongside the technology.
- Deal size and length: Not publicly documented. Programs are typically multi-phase.
- Who does the work: Staffed case teams supervised by partners, pulling in the firm’s technical and analytics specialists.
- Where they work: Global, headquartered in Boston.
- Poor fit for: A brand that needs one senior advisor a few hours a month, which is a different shape of help than a team-delivered program.
03. Strategy&
Strategy& is PwC’s strategy consulting business, strongest in consumer markets, where ecommerce work sits alongside cost management, revenue management and supply chain.
- Engagement model: Strategy retainer inside a Big Four firm, with a route into PwC’s implementation and technology arms when the work moves past the decision.
- Fits: Consumer goods companies and retailers whose ecommerce question is really a portfolio, pricing or route-to-market question.
- Deal size and length: Not publicly documented.
- Who does the work: Strategy teams that can hand off to PwC delivery, which is why the contract determines what you actually get.
- Where they work: Global, through PwC’s office network.
- Poor fit for: A single-channel DTC brand whose whole business is smaller than one workstream in a typical program.
04. McKinsey Digital
McKinsey Digital combines strategy with build capability across data and AI, core technology modernization, new digital business creation and digital product design.
- Engagement model: Staffed enterprise program, technology-led, delivered through named units for analytics, venture building and software development.
- Fits: Enterprises whose commerce problem is genuinely a technology and data problem, where the fix runs through core systems.
- Deal size and length: Not publicly documented.
- Who does the work: Mixed teams of consultants, engineers and data scientists.
- Where they work: Global.
- Poor fit for: A brand looking to improve conversion on an existing Shopify store, which rarely needs a program of this scale.
05. Bain & Company
Bain pairs digital strategy with advanced analytics and enterprise technology. It publishes a dedicated B2B ecommerce practice alongside its private equity work.
- Engagement model: Strategy retainer that extends into design, prototyping and analytics capability building.
- Fits: B2B ecommerce builds and portfolio companies where an investor wants a digital thesis pressure-tested before capital goes in.
- Deal size and length: Not publicly documented.
- Who does the work: Integrated case teams combining sector specialists with engineering and data science.
- Where they work: Global.
- Poor fit for: An owner-operated DTC brand with no investor timeline and no internal analytics function to receive the work.
06. OC&C
OC&C is a strategy firm concentrated in consumer goods and retail, with a defined direct-to-consumer channel practice covering marketplaces, digital media and classifieds.
- Engagement model: Strategy retainer, focused on growth strategy, competitive positioning, channel expansion and private label.
- Fits: Consumer brands weighing a D2C channel against wholesale and marketplace economics, including brands well below enterprise scale.
- Deal size and length: Not publicly documented.
- Who does the work: Sector-specialist consulting teams.
- Where they work: Global, weighted toward Europe.
- Poor fit for: A brand that needs the strategy executed instead of decided, since implementation isn’t what this firm sells.
07. Accenture
- Engagement model: Staffed enterprise program plus platform implementation, spanning commerce strategy, customer experience design and operations.
- Fits: Enterprises replatforming or running commerce across many markets, where strategy and delivery need to sit under one contract.
- Deal size and length: Not publicly documented. Client work is published as case studies rather than as engagement terms.
- Who does the work: Large delivery teams, often distributed across regions.
- Where they work: Global.
- Poor fit for: A mid-sized brand that would be among the smallest accounts in the practice.
08. KPMG
KPMG approaches digital commerce consulting through operating models, integrating platforms across customer touchpoints and fulfillment.
- Engagement model: Staffed enterprise program, business-model first, moving from strategy into platform selection and operations.
- Fits: Companies whose commerce problem sits in the back half of the business, meaning fulfillment, supply chain and cost to serve.
- Deal size and length: Not publicly documented.
- Who does the work: Advisory teams with technology and analytics specialists.
- Where they work: Global.
- Poor fit for: A brand whose growth constraint sits in demand instead of operations.
09. Simon-Kucher
Simon-Kucher is the pricing and revenue specialist on this list, working on price architecture, promotion efficiency and monetization models.
- Engagement model: Strategy retainer, narrow by design, built around pricing, packaging, promotion and channel strategy.
- Fits: Brands whose margin problem is a pricing and promotion problem, including mid-sized companies where a single pricing decision moves the year.
- Deal size and length: Not publicly documented.
- Who does the work: Specialist commercial strategy teams.
- Where they work: Global, with deep consumer goods and luxury coverage.
- Poor fit for: A brand that needs the whole ecommerce operation diagnosed, since the scope here is deliberately narrow.
10. Alvarez & Marsal
Alvarez & Marsal works on retail performance improvement, restructuring and large-scale change, with digital treated as a lever inside a broader turnaround.
- Engagement model: Staffed enterprise program with an operator bias, covering growth strategy, operations and analytics.
- Fits: Retailers under margin or liquidity pressure where the ecommerce question can’t be answered separately from the P&L.
- Deal size and length: Not publicly documented. Engagements are commonly tied to a defined performance target.
- Who does the work: Teams weighted toward former operators.
- Where they work: Global.
- Poor fit for: A healthy, growing brand looking for a growth plan instead of a performance fix.
11. Kearney
Kearney concentrates on consumer and retail, with real depth in operations, supply chain, procurement and omnichannel execution.
- Engagement model: Strategy retainer weighted toward operations, extending into cost reduction work and category management.
- Fits: Retailers connecting stores and online, where the hard part is inventory, fulfillment and cost rather than demand generation.
- Deal size and length: Not publicly documented.
- Who does the work: Consulting teams with supply chain and procurement specialists.
- Where they work: Global.
- Poor fit for: A pure-play DTC brand with a single warehouse and no store network.
12. Deloitte Digital
Deloitte Digital runs B2B and B2C commerce programs from business case through platform delivery and change management.
- Engagement model: Staffed enterprise program plus platform implementation, including visioning, roadmapping and global expansion work.
- Fits: Enterprises standing up or consolidating commerce platforms across business units and geographies.
- Deal size and length: Not publicly documented.
- Who does the work: Large blended teams of strategists, technologists and change specialists.
- Where they work: Global.
- Poor fit for: A brand on a single Shopify store that needs judgment rather than delivery capacity.
Price differences on this list are mostly differences in how many people are on the engagement.
The four engagement models these firms sell and what each one costs you
An engagement model is the shape of the help you buy: who does the work, how long it runs and what you own when it’s over. Every firm on this list sits somewhere on a spectrum that runs from a staffed enterprise program at one end to platform implementation work at the other. Price rises with all three: who does the work, how long it runs and what you own when it’s over.
| Model | Who does the work | Typical length | What you own afterwards |
|---|---|---|---|
| Staffed enterprise program | A staffed team, partner-supervised | Multiple phases, often a year or more | A roadmap, models and systems your team was trained into |
| Strategy retainer | A small senior team plus analysts | Three to twelve months | A decision set and the analysis behind it |
| Principal-led advisory | One senior practitioner, weekly | Open-ended after a short minimum | The decisions plus the habit of making them |
| Platform implementation | Delivery pods, project-managed | Scoped to a build or migration | A working system and its documentation |
Price tracks headcount more than it tracks seniority. A program run by a team costs several times what a program run by one advisor costs, whatever the firm’s name is. That sets your budget before you negotiate anything. If the change you need is narrow, then buying the widest model on the list is how a sound plan turns into an ecommerce profitability problem of its own.
The published rate range is the fastest way to see the spread. Shopify puts the cost of an ecommerce consultant at between $25 and $300 per hour. The same forty hours of work is a $1,000 line item at one end of that range and a $12,000 line item at the other, which is the whole reason model selection comes before firm selection.
To find your own position, start with three things you already know. How big is the change you need, how much internal team do you have to hand the work to, and how quickly does the decision have to be made? The bigger the change and the thinner the team, the further toward a staffed program you belong.
Mid-sized brands often land between principal-led advisory and a strategy retainer. Both are ecommerce strategy consulting under different names. The choice comes down to how much of the work your team can carry.
If you can’t tell which of these four models your business actually needs, a read on where you’re stuck is usually cheaper than a mis-scoped engagement.
Where a consulting firm ends and an agency begins
An ecommerce consulting firm sells decisions, direction, and capability that stays with your team; an agency sells execution hours against a brief someone else wrote. Eight firms on this list are consultancies rather than agencies: 2 Visions, Boston Consulting Group, McKinsey Digital, Bain & Company, OC&C, Simon-Kucher, Alvarez & Marsal and Kearney. They split by size, not by discipline: the large firms run multi-month programs staffed by teams, while 2 Visions runs principal-led engagements for brands doing $5M to $500M in DTC revenue. Accenture, KPMG, Deloitte Digital, and Strategy& sell both, so which one you get depends on the contract you sign rather than on the firm you call.
The same brand often hires an ecommerce consulting agency and a consultancy inside the same year. That’s fine. Trouble starts when a company buys execution hours before it has settled the decision those hours are meant to serve. Good execution against a weak brief gives you clean reporting and flat numbers.
Four ways an ecommerce consulting engagement goes wrong
Most people shopping for ecommerce business consulting have hired outside help before and have a specific memory of it not working. That instinct is worth trusting and it gets more useful once you can name the four patterns it’s reacting to. None of them is about a bad firm; all four are about how an engagement was shaped.
Scope expands until the invoice stops making sense
Scope expansion is structural in any model where the firm’s revenue grows with the size of the work. Each addition is individually reasonable, which is exactly why the total sneaks up on people: a discovery workstream, then a data fix the discovery uncovered, then a change-management track to land the data fix.
You can spot the risk before you sign by listening to how a firm talks about what it doesn’t yet know. A firm that gives you a range and names what would move you to the top of it is describing real uncertainty; a firm that gives you a single confident number for a business it hasn’t studied is describing a sales process. The range is the healthier signal of the two.
The tell on the buyer’s side is easier. If you can’t say in one sentence what the engagement is supposed to change, then whoever you hire will define that for you, generously. A short list of questions to ask a consultant before signing does more to hold scope than any clause added afterwards.
The report lands and the firm leaves
The most common complaint about strategy work is that the firm hands over a report and leaves. That is usually how the engagement was designed, not a betrayal. An engagement scoped to produce recommendations ends when the recommendations exist. Nobody put the implementation work in the price at the start. Nobody is doing it now.
Ask early who is accountable for the first ninety days after delivery and what happens if the numbers don’t move. The answer can legitimately be “your team, with us available”; that’s fine when you’ve planned for it. Agreeing in advance on the numbers to hold them to is what turns a deck into something you can act on.
You buy a partner and get an associate
Team-delivered models put a senior partner in the room to sell and a mixed team on the work, which is how a consulting firm’s economics work everywhere in the industry. That isn’t a trick; it’s the only way a firm serves hundreds of clients at once. The mismatch shows up when a buyer expected the person from the pitch and priced the engagement accordingly.
The check is simple and nobody minds being asked. Find out who will be in the weekly working session, how many other accounts they carry and how often the partner joins. If the answer is vague at the proposal stage, it won’t get more specific after the contract is signed.
The engagement is built so you cannot end it
Dependency is rarely a plot. It accumulates when the knowledge, the dashboards and the vendor relationships all live outside your building, so ending the engagement means losing the ability to run what it built.
The question to ask before signing is what your team will be able to do on its own after the engagement ends. Firms that intend to leave you self-sufficient answer with specifics: named people trained, documentation handed over, logins in your name.
What mid-sized US brands should look for that enterprise buyers should not
A mid-sized US brand, meaning roughly $5M to $500M in annual DTC revenue, is smaller than the deals most global consultancies staff for. At the price they quote you, that usually means a smaller and more junior team. The firms on this list that work at that scale are 2 Visions, OC&C, and Simon-Kucher; the rest build their engagements around enterprise programs. The practical test is a firm’s own published case studies: if every named client is a Fortune 500 company, you will be the smallest account in the building.
Scale is part of why this matters. US ecommerce hit $340.2 billion in the second quarter of 2026 and 17.1% of all retail sales, up 12.2% year over year against 6.7% growth for total retail, per the Census Bureau. Online is where the growth is, which is why so many firms now sell advice about it.
The volume is concentrated, though: US ecommerce sales reached about $1.234 trillion in 2025, up 5.4% on 2024, according to Digital Commerce 360. Most of that sits with a handful of very large retailers. A firm built to serve them is optimizing for a business that works nothing like a $30M DTC brand.
The case-study check takes about ten minutes and it tells you more than any proposal. Open a firm’s case study index and look at four things on each one before you read a word of the narrative.
Enterprise buyers should look for enough people to run several workstreams at once across regions. Mid-sized buyers usually need something closer to the opposite: one experienced person with enough context on the business to say no to the wrong idea in a Tuesday meeting.
If your shortlist is full of firms whose published clients are ten times your size, a call to pressure-test that shortlist will narrow it faster than another round of proposals.
Budget math makes the same point. Using the published $25 to $300 hourly range, a $6,000 monthly budget buys about 20 hours at the top of the market and roughly 48 hours in the middle of it. That means a mid-sized brand is choosing how much senior attention it gets rather than whether it can afford help at all.
In our own conversations, the mid-market brands that end up disappointed are usually the ones that bought the largest model they could afford, on the reasoning that a bigger firm carries less risk. The risk moves instead of disappearing. It lands on whether anyone senior stays close enough to the business to notice when the plan stops matching reality.
How this list was built
This roster was reviewed and rebuilt in August 2026 against the criteria below. Every entry was rewritten around engagement fit instead of each firm’s own marketing language. Firms were screened on the public record: published practice descriptions, published client work and independent review evidence where a firm has it.
- Documented ecommerce practice: The firm publishes a defined ecommerce, digital commerce or D2C practice, not a general digital page.
- At least five years of relevant work: Long enough to have a public track record in the channel.
- Public client evidence: Case studies, named client work or third-party reviews. Not every firm here publishes client reviews and each entry says which evidence that firm offers.
- Verifiable public profile: A firm site and professional profiles that confirm the people and the practice.
- Range across the spectrum: The list deliberately spans all four engagement models so a reader can compare shapes of help instead of twelve versions of the same one.
An earlier version of this criteria list required third-party review scores of 98% or higher. The roster itself contradicted that, since several large firms publish no client reviews at all. The criterion above replaces it with something a reader can actually check.
