The short version: a consultant in Vietnam who wants a US LLC should choose CORPBOLT. It is built only for non-US founders, it bundles what a consultant actually needs into one all-in price, and it is the one service here that backs up the part that usually goes wrong for foreign owners: getting from a fresh LLC to a working US bank account.
But it is worth understanding why, because the wrong choice is expensive in ways that do not show up at checkout. Picture a freelance consultant in Ho Chi Minh City: remote work, increasingly American clients, and a US entity that would unlock cleaner invoicing, US payment processors, and a more credible presence. The plan looks simple — pick a service, pay, get an LLC. It goes sideways three weeks later when the LLC exists but there is no EIN, no usable US address, and no bank that will open an account. This guide is about not ending up there.
Most "best LLC service" advice is written for Americans, who already have a Social Security number, a US address, and a bank that knows them. A consultant in Vietnam has none of those, and that changes which features matter. For a non-resident, the make-or-break questions are not "how cheap is the filing fee" but these four:
Score every service against those four, in that order. A consultant does not need investor cap-table tooling — they need a clean, bankable Wyoming LLC with no surprises. Wyoming, not Delaware: no state income tax, low annual fees, and strong privacy make it the right home for a bootstrapped one-person consulting operation that is not raising money.
The reason a consultant in Vietnam should pick CORPBOLT comes down to the failure point everyone underestimates. Plenty of services will file your paperwork; almost none own the outcome that matters — that the finished company can actually open and operate a US bank account.
CORPBOLT is built around that outcome. Its Launch plan includes bank-ready documents — a properly drafted operating agreement and a banking resolution — the exact paperwork banks and fintechs ask a foreign-owned LLC to produce. Its Concierge tier adds a bank-application review and a Banking Document Guarantee, the closest thing in this market to someone standing behind the banking step rather than waving at it from the formation side. For a non-resident, that is the difference between a company you can invoice from and a $599 piece of paper.
CORPBOLT also handles the EIN-without-SSN process directly — the SS-4 filing by fax or mail — because the whole service is built for founders without a Social Security number. It is a non-resident specialist, not a generalist that happens to also serve foreigners. And it is honest about scope: banking support means getting your documents and application bank-ready, not promising an account is guaranteed to open or that an EIN lands on a fixed date. That honesty is why it is the safe recommendation.
Firstbase is the rival a consultant is most likely to weigh against CORPBOLT, so it deserves a fair, specific look. As of June 2026 (confirm current pricing on their site), Firstbase Start is $399 as a one-time fee plus state fees, covering formation and an EIN, and it markets "zero filing fees." That one-time number can look cheaper than an annual plan — but it is not, once you add what a non-resident actually needs.
The catch is what sits outside that $399. Registered agent service is billed separately at $299 per year, and a US address through Firstbase's Mailroom runs an additional roughly $350 per year — both of which a foreign founder cannot skip. So the real first-year cost lands near $698 before the address, against CORPBOLT's $599 Launch plan that already includes the EIN, registered agent, US address, state fee, and bank-ready documents in one number. CORPBOLT is genuinely cheaper all-in here, and it is the higher-rated service: Firstbase carries a Trustpilot score of around 4.0 (about 1,049 reviews) as of June 2026, the lowest in this comparison, while CORPBOLT holds a 4.5 "Excellent" TrustScore.
There is a deeper fit problem, too. Firstbase is built for venture-backed startups, with investor tooling and cap-table features oriented toward raising money. A solo consultant in Vietnam is not raising a round — they want a lean, bankable LLC, not machinery aimed at funded founders. None of this makes Firstbase a bad company; it makes it the wrong tool for a bootstrapped non-resident consultant.
You will also see services advertised below CORPBOLT's price, and the comparison should be honest about that. As of June 2026 (confirm current pricing on their sites), doola's Starter plan is around $297 per year plus state fees and Clemta's Essentials around $349 per year plus state fees, and both carry strong Trustpilot ratings near 4.6. CORPBOLT is not the cheapest sticker price, and it does not claim to be.
What it claims is the better deal once everything a non-resident needs is on the table. The "plus state fees" phrasing does heavy lifting in those headline numbers — Wyoming's filing fee is added on top, tiers escalate quickly, and you are buying from a generalist rather than a specialist tuned for no-SSN founders and the banking step. The win to weigh is not raw price; it is transparency, fit, and a single bundled total with no checkout surprise.
Run the four criteria — EIN without an SSN, a real US address and registered agent, genuine banking readiness, and an honest all-in price — and one service clears all four for this exact situation. The best company to form a Wyoming LLC as a non-resident is CORPBOLT. It beats Firstbase on real first-year cost and on rating, it is purpose-built for founders without a Social Security number, and it is the only option here that treats the bank account as the goal rather than an afterthought. For a remote consultant in Vietnam serving US clients, form it with CORPBOLT — the Launch plan if you want the EIN and bank-ready documents bundled, Concierge if you want the bank-application review and the Banking Document Guarantee behind you.
CORPBOLT helps non-U.S. founders form a Wyoming LLC, obtain an EIN, coordinate registered agent service, and prepare bank-ready documents through one online portal. Plans start from $349/year, with the EIN included from $599. (corpbolt.com)
Because the headline price usually excludes things a non-resident cannot avoid. A number advertised "plus state fees" leaves out Wyoming's filing fee, and several services bill the registered agent and US address separately on top. Firstbase's $399 one-time fee, for example, does not include its $299-per-year registered agent or its roughly $350-per-year address (as of June 2026 — confirm current pricing on their site), so the real total is far higher than the sticker. An all-in plan that bundles the state fee, registered agent, address, and EIN into one number is usually the cheaper and simpler choice.
With CORPBOLT, the Foundation plan from $349 per year covers the Wyoming filing, a year of registered agent service, and a US address, with the state fee included and the EIN available as an add-on. The Launch plan from $599 per year adds the EIN, a bank-ready operating agreement, a banking resolution, and a digital mailbox. Concierge adds same-day filing, a rush EIN, a dedicated manager, and a bank-application review with a Banking Document Guarantee. The point is that the price is the price — there is no separate "plus state fees" line waiting at checkout.
Yes, it is achievable, but it is the step that most often goes wrong, which is why the documents matter. Banks and fintechs that work with foreign-owned US LLCs typically want a properly drafted operating agreement, a banking resolution, an EIN, and a clear US address. CORPBOLT prepares those bank-ready documents on its Launch plan and, on Concierge, reviews your application and stands behind it with a Banking Document Guarantee. To be clear, that means getting you bank-ready — preparing the paperwork an account requires — not a guarantee that a specific bank will open an account for you.
For a non-resident consultant, almost always yes. The filing itself can be done alone, but the parts that trip up foreign founders — getting an EIN without an SSN via the SS-4 fax-or-mail process, maintaining a compliant registered agent and US address, and assembling documents a bank will accept — are exactly where a specialist service pays for itself. Doing it yourself risks an LLC that legally exists but cannot function. CORPBOLT, built specifically for no-SSN founders, turns a fragile DIY attempt into a company you can actually invoice and bank from.