Updated October 6, 2026 · 8 services tested
We tested 8 registered agent services for Colorado. Northwest Registered Agent is our pick: $125 first year, then $125/yr.
By Jon Morgan · Fact-checked by Jon Tobin, Business Attorney · How we test
Northwest Registered Agent
$125 first year, then $125/yrFree first year with its $39 LLCGet Northwest's agent service (opens in a new tab)
ZenBusiness
$99 first year, then $199/yrHalf price in year one when you switch to ZenBusiness (state fee extra)See ZenBusiness agent plan (opens in a new tab)
Harbor Compliance
$99 first year, then $159/yrFor new customersSee Harbor Compliance agent plan (opens in a new tab)Prices checked October 6, 2026.
We compared registered-agent pricing, documented features, and account observations for Colorado founders. Our tests covered different service steps by provider, including LLC formation and active-agent account access where available.
Northwest Registered Agent remains our top pick. ZenBusiness ranks second at 4.7/5 for its guided platform and stronger public customer-review score, while Harbor Compliance ranks third at 4.6/5 and remains a strong option for multi-state compliance.
Check the renewal price column before the first-year number below. Several providers cut that first number to win orders. The features column then shows what the higher rate buys you later.
| Service | Agent price | RA bundled with formation | Service features | Score | Compare offers |
|---|---|---|---|---|---|
| $125 first year, then $125/yrFree first year with its $39 LLC | Yes (free first year with formation) | • Same-day legal mail scanning • Privacy by default • Files switchover paperwork | 4.9 | Get agent service (opens in a new tab) |
| $99 first year, then $199/yrHalf price in year one when you switch to ZenBusiness (state fee extra) | No (half off first year with formation) | • Same-day scans, email alerts • Overnight urgent delivery • Written address-use scope | 4.7 | See plan (opens in a new tab) |
| $99 first year, then $159/yrFor new customers | No | • Same-day document delivery • Entity manager software • Unlimited document storage | 4.6 | See plan (opens in a new tab) |
 | $119 first year, then $119/yrIncluded in year one with its Entrepreneur and Complete LLC packages | No | • Instant dashboard notifications • Self-service forwarding updates • 3 free email forwards a year | 4.6 | See plan (opens in a new tab) |
 | $124.99 first year, then $124.99/yrOnly with a Plus or Pro membership | No (Plus or Pro membership required; billed separately) | • Digital document delivery • Attorney consultations via membership • Paid Plus or Pro membership required | 4.5 | See plan (opens in a new tab) |
 | $249 first year, then $249/yr | No | • Unlimited cloud storage • Time-sensitive mail alerts • Compliance Calendar reminders | 4.4 | See plan (opens in a new tab) |
 | $149 first year, then $149/yrFree first year with a Bizee LLC | Yes (free first year with formation) | • Dedicated dashboard filings tab • Instant SOP notifications • Handles agent-change paperwork | 4.3 | See plan (opens in a new tab) |
 | $596 first year, then $596/yrBilled $149 a quarter | No | • Dedicated Colorado office address • SOP scans in 2-3 hours • Secure document dashboard | 4.2 | See plan (opens in a new tab) |
Prices checked October 6, 2026.
Each score combines support, price, features, privacy and security, compliance alerts and user ratings.
Refund: 90 days
Northwest Registered Agent handled our test service of process the same day it landed, uploading a scanned copy before we'd even checked our inbox.
The company's own Colorado office sits on the public filing in place of ours, and that arrangement doesn't change if we ever switch which provider handles renewals. Owners who value that separation get it by default here.
Northwest Registered Agent also absorbs the paperwork when an existing LLC moves its agent over from another provider, at no extra charge beyond the regular subscription.
Pros
Cons
Refund: 60 days
ZenBusiness builds its account around Velo, an in-account assistant marketed to flag gaps and state notices as they come in.
The company also draws a hard line on what its address covers. ZenBusiness states outright that the agent address handles legal and state mail instead of general business correspondence.
Unlike Northwest Registered Agent's flat rate, ZenBusiness charges separately for the agent role on its lowest-cost option. Add it later and the bill jumps once that first-year discount runs out.
Pros
Cons
Harbor Compliance built its third-place position on an Entity Manager dashboard aimed at businesses juggling filings in more than one state at once.
Compliance deadlines and good-standing status populate that dashboard automatically, pulled from every state where an entity has an active registration. That cross-state view is what the higher renewal price actually buys.
Harbor Compliance also markets itself toward nonprofits and regulated industries, so a plain agent order here skips some of the specialty attention those customers get.
Pros
Cons
Refund: 90 days
MyCompanyWorks keeps its agent product simple, with one flat price, no upgrade prompts and no upsell screen standing between signup and an active account.
A notification landed in our online dashboard the moment a test document finished scanning, well before any email alert caught up to it.
Updating the forwarding address after a move took under a minute inside that same dashboard, with no support ticket or phone call required.
Pros
Cons
Refund: 60 days
You can't buy a standalone agent from Rocket Lawyer. The option only appeared in our test after we'd already joined its Plus membership.
Rocket Lawyer provides the service through Rocket Lawyer Corporate Services LLC, a subsidiary built specifically to hold that role instead of the consumer-facing Rocket Lawyer brand.
That membership also includes attorney phone calls and document review, a real perk if legal help is likely this year. Delivery stays digital, so check that before signing up if paper copies matter.
Pros
Cons
Open any card for the complete review, scores and packages.
Refund: 60 days
Business owners already know the LegalZoom name, yet our formation checkout skipped straight past any agent offer entirely. Ordering the service meant a separate trip back to the site.
LegalZoom provides the service through United States Corporation Agents, Inc., a wholly owned subsidiary that handles the underlying filing work.
Colorado expects an agent listed the moment a business registers, so that checkout gap is worth flagging. Order the agent afterward, though, and the process itself runs cleanly.
Pros
Cons
Refund: Before state payment
Form an LLC through Bizee and the first year of agent service (then $149/yr) rides along free, the cheapest entry point here.
In our test account, new service-of-process notices landed in the same filings tab as state and federal paperwork, so nothing about compliance tracking moved to a separate screen.
Mail forwarding runs by request rather than automatically, and switching to Bizee from another agent gets folded into paperwork the company already files for you.
Pros
Cons
Refund: 60 days
Swyft Filings bills its agent service every quarter rather than once a year, a cadence that caught us off guard during signup.
That quarterly rhythm adds up fast against the annual competitors here, even though the company advertises the per-quarter figure as the more approachable number.
A dedicated Colorado office address backs the service, and scanned service-of-process documents typically showed up in our account within a few hours of delivery.
Pros
Cons
Our testing methodology combines provider research with account observations where access was available.
The ZenBusiness test purchased LLC formation only, without activating its paid registered-agent service; the Harbor Compliance assessment covered direct Q&A and a pricing and signup-wizard walkthrough without a paid order.
We average six numeric categories equally to calculate each overall score, rounding the result to one decimal place. The separate Colorado Fit subsection adds context and is not a seventh numeric score.
ZenBusiness's six scores average 4.700/5; Harbor Compliance's average 4.633/5, giving displayed overall scores of 4.7 and 4.6, respectively.
Northwest Registered Agent's support connected us to a live person quickly, without a long menu tree to work through first.
ZenBusiness and Harbor Compliance trailed close behind. ZenBusiness leans on Velo to clear routine questions instantly, freeing staff for harder cases. Harbor Compliance positions its team around detailed compliance questions instead.
Renewal price matters more than the signup discount when comparing recurring costs. Harbor Compliance renews at $159 per year, compared with ZenBusiness at $199 per year, so Harbor earns the higher Price score: 4.7 versus 4.6.
Their current introductory rates both start at $99. Compare the final checkout total and any formation or multi-year conditions before deciding how much the first year will cost.
Northwest Registered Agent has the highest Features score at 4.8, while ZenBusiness and Harbor Compliance each score 4.7. Northwest's forms library and handling of agent-change paperwork add practical value beyond receiving documents.
Harbor Compliance's Entity Manager stands out for tracking registrations in multiple states, while ZenBusiness provides guided account tools through Velo. Those different strengths may matter more to an individual owner than the small numerical gap.
Northwest Registered Agent and Harbor Compliance share the highest Privacy and Security score at 4.9, while ZenBusiness scores 4.7.
We considered documented address-use policies and secure document handling alongside the account observations available to us.
An agent's address can replace a personal address in the registered-agent field, but it does not remove information required elsewhere on state filings.
ZenBusiness explicitly limits its agent address to legal and state mail, rather than general business correspondence.
Northwest Registered Agent and Harbor Compliance each score 4.9 for Compliance Alerts, while ZenBusiness scores 4.6.
We considered the clarity and availability of deadline reminders; managed filing services, when offered, may carry a separate charge. MyCompanyWorks scores 4.7 in this category.
Public customer reviews are one input in our comparison, alongside service features and account observations. ZenBusiness earns a 4.8 User Ratings score; Harbor Compliance earns 3.9.
These are editorial category scores derived from the review snapshot checked on October 2, 2026, rather than ratings of a state-specific office.
ZenBusiness's score combines Trustpilot's 4.8/5 from 32,767 reviews and BBB's 4.04/5 from 817 customer reviews, weighted by review count. The result is 4.78/5, rounded to 4.8.
Harbor Compliance's score uses Trustpilot's 3.1/5 from 53 reviews, BBB's 1.0/5 from 8 customer reviews, and Birdeye's 4.2/5 from 245 Google reviews. The same weighting gives 3.93/5, rounded to 3.9.
Review counts and invitation practices differ across platforms, so these samples are not directly comparable measures of service quality.
BBB customer-review averages are separate from its business letter grades; Harbor's own site also reports a separate Google sample of 4.3/5 from 212 reviews.
Harbor's unrounded mean of 4.633/5 is higher than MyCompanyWorks at 4.567/5. That explains their order even though both cards display 4.6/5 after rounding.
Most Colorado filing rejections trace back to one issue, an agent address the state won't accept, like a mailbox rental or a P.O. box instead of a real street address.
The state also now checks an individual agent's ID against Colorado records, under a rule that took effect July 1, 2025. That shift makes a provider's established compliance process worth more than it used to be.
Northwest Registered Agent and Harbor Compliance both sidestep any personal ID exposure by using their own office address instead of a founder's.
Standalone annual rates among these providers start at $119 and reach about $249 per year, excluding quarterly billing, prepaid discounts and paid membership requirements.
ZenBusiness starts at $99 and renews at $199; Harbor Compliance starts at $99 and renews at $159.
Rocket Lawyer's $124.99 annual (the same in the first year and every year after) agent add-on requires a separately paid Plus or Pro membership, so its agent fee is not the whole recurring bill.
Swyft Filings bills $149 or more per quarter, which totals at least $596 across twelve months.
Acting as your own agent costs nothing, aside from putting a real Colorado street address on a public filing anyone can look up. That tradeoff is why many founders pay a provider instead.
An agent's fee is separate from the state's own Periodic Report fee, which comes due on its own schedule no matter who accepts your legal mail. A cheaper agent doesn't lower what the state charges.
Our best LLC services in Colorado guide lines up formation pricing next to this if you want the full cost picture before committing.
Handing the whole switch to a new provider saves most owners from tracking each step themselves. Sign up with Northwest Registered Agent or Bizee, among others here, and the paperwork gets filed on your behalf.
Yes. Colorado law requires every LLC and corporation to keep a registered agent with a Colorado address on file for as long as the business exists.
Yes, if you live in the state or keep a usual place of business there and can list a real street address. Many owners still hire a service to keep that address private.
The job is narrow: accept service of process and official state notices, then pass them along promptly. Taxes and other compliance filings sit outside that duty.
Standalone annual rates on this list start at $119 and reach about $249, excluding prepaid discounts, with first-year promotions starting at $99.
Swyft Filings costs at least $596 first year, then $596/yr (billed $149 a quarter) when its quarterly bills are added together. Rocket Lawyer requires a paid membership in addition to the agent fee.
File a Statement of Change online through the Secretary of State's business site and pay the $10 fee, affirming the new agent's consent on the same form.
Not exactly. Colorado LLCs file a Periodic Report once a year in their assigned Periodic Report Month rather than a traditional calendar-year annual report.
Every provider on this page satisfies Colorado's legal bar for a registered agent. What separates them comes down to scanning speed, how steady the renewal price stays and which entity actually shows up on your paperwork.
Northwest Registered Agent takes the top spot, and moving an existing LLC's agent role over costs nothing beyond the regular subscription. Harbor Compliance is the stronger fit for a business that files in more than one state.
Northwest Registered Agent also doubles as the price pick, since the free switch-over handling saves real money the moment an existing LLC moves over.
Rocket Lawyer is the strongest alternative for owners who want legal help bundled with the agent role.
ZenBusiness is our second overall choice at 4.7/5, combining guided account tools with the stronger public customer-review score.
Harbor Compliance ranks third at 4.6/5 and is still the specialist pick for owners tracking compliance across multiple states.
References
Our verdict
$125 first year, then $125/yr. 90-day money-back guarantee.
Prices checked October 6, 2026.